ASPECT DEVELOPMENT INC
S-4, 2000-04-11
PREPACKAGED SOFTWARE
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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                           --------------------------
                                    FORM S-4
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                           --------------------------
                            ASPECT DEVELOPMENT, INC.
             (Exact name of registrant as specified in its charter)

<TABLE>
<S>                                       <C>                                       <C>
                DELAWARE                                    7372                                   25-1622857
    (State or other jurisdiction of             (Primary Standard Industrial           (IRS Employer Identification No.)
     incorporation or organization)             Classification Code Number)
</TABLE>

                           --------------------------

                              1395 CHARLESTON ROAD
                        MOUNTAIN VIEW, CALIFORNIA 94043
                                 (650) 428-2700
  (Address, including zip code, and telephone number, including area code, of
                   registrant's principal executive offices)
                         ------------------------------

                                 DAVID S. DURY
                           SENIOR VICE PRESIDENT AND
                            CHIEF FINANCIAL OFFICER
                            ASPECT DEVELOPMENT, INC.
                              1395 CHARLESTON ROAD
                        MOUNTAIN VIEW, CALIFORNIA 94043
                                 (650) 428-2700
 (Name, address, including zip code, and telephone number, including area code,
                             of agent for service)
                         ------------------------------

                                   Copies to:
                              JAMES C. KITCH, ESQ.
                               COOLEY GODWARD LLP
                             FIVE PALO ALTO SQUARE
                              3000 EL CAMINO REAL
                            PALO ALTO, CA 94306-2155
                                 (650) 843-5000
                           --------------------------

APPROXIMATE DATE OF PROPOSED SALE TO THE PUBLIC: As soon as practicable
following the effectiveness of this Registration Statement and the effective
time of the proposed merger of ASTA Merger Sub, Inc. with and into Transition
Analysis Component Technology, Inc., (TACTech) as described in the Agreement and
Plan of Reorganization, dated as of January 17, 2000, as amended April 6, 2000
attached as Appendix A to the Proxy Statement/Prospectus forming a part of this
Registration Statement.
                           --------------------------

If the securities being registered on this Form are to be offered in connection
with the formation of a holding company and there is compliance with General
Instruction G, check the following box. / /

If this Form is filed to register additional securities for an offering pursuant
to Rule 462(a) under the Securities Act of 1933 (Securities Act), check the
following box and list the Securities Act registration statement number of the
earlier effective registration statement for the same offering. / /

If this Form is a post-effective amendment filed pursuant to Rule 462(d) under
the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. / /

                        CALCULATION OF REGISTRATION FEE

<TABLE>
<CAPTION>
                                                                PROPOSED MAXIMUM     PROPOSED MAXIMUM         AMOUNT OF
                                             AMOUNT TO BE        OFFERING PRICE          AGGREGATE          REGISTRATION
  TITLE OF SECURITIES TO BE REGISTERED      REGISTERED (1)          PER SHARE         OFFERING PRICE           FEE(2)
<S>                                       <C>                  <C>                  <C>                  <C>
Common Stock, $(.001 par value).........        450,848             $.0127142           $21,712,839           $5,732.19
</TABLE>

(1) The amount of Aspect Development, Inc. ("Aspect") common stock to be
    registered has been determined by multiplying the exchange ratio (0.6647302
    of a share of Aspect common stock) by the maximum aggregate number of shares
    of TACTech (678,242).

(2) The registration fee was calculated pursuant to 457(f) as 0.000264
    multiplied by $48.16 (the average of the high and low prices of Aspect
    common stock on the Nasdaq National Market on April 4, 2000), multiplied by
    450,848.

THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR DATES
AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(A) OF
THE SECURITIES ACT OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME EFFECTIVE ON
SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(A), MAY
DETERMINE.

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<PAGE>
                 TRANSITION ANALYSIS COMPONENT TECHNOLOGY, INC.

                                22687 Old Canal Road
                       Yorba Linda, California 92887-4608
                                 (714) 974-7676

     NOTICE OF SPECIAL MEETING OF STOCKHOLDERS TO BE HELD [APRIL 20,] 2000

                                     [date]

To the Stockholders of
Transition Analysis Component Technology, Inc.:

    NOTICE IS HEREBY GIVEN that a special meeting of the stockholders of
Transition Analysis Component Technology, Inc., a Delaware corporation
(TACTech), will be held at [8:00] a.m., local time, on [April 20,] 2000 at the
[Westchester Marriott Hotel, 670 White Plains Road, Tarrytown, New York 10591]
for the following purposes:

    1.  To consider and vote upon a proposal to approve the merger of TACTech
       with Asta Merger Sub, Inc. (Asta Merger Sub), a wholly-owned subsidiary
       of Aspect Development, Inc. (Aspect), following which, TACTech will
       become a wholly-owned subsidiary of Aspect, and the stockholders of
       TACTech will receive their proportionate interest in 450,848 shares of
       Aspect common stock in exchange for their shares of common stock of
       TACTech; and

    2.  To transact such other business as may properly come before the special
       meeting or any adjournment or postponement thereof.

    This proxy statement/prospectus also constitutes notice to TACTech
stockholders of appraisal rights with respect to the merger pursuant to
Section 262 of the Delaware General Corporation Law (DGCL).

    TACTECH'S BOARD OF DIRECTORS HAS DETERMINED THAT THE MERGER IS IN YOUR BEST
INTERESTS AND RECOMMENDS THAT YOU VOTE TO APPROVE THE MERGER.

    Each of the foregoing items of business is more fully described in this
proxy statement/prospectus, which we urge you to read carefully.

    Stockholders of record at the close of business on March 20 are entitled to
notice of and to vote at the special meeting and any adjournment or postponement
thereof. Approval of the merger will require the affirmative vote of the holders
of TACTech capital stock representing two-thirds of the votes of the outstanding
shares of TACTech common stock entitled to vote.

    TO ENSURE THAT YOUR SHARES ARE REPRESENTED AT THE SPECIAL MEETING, PLEASE
COMPLETE, DATE AND SIGN THE ENCLOSED PROXY CARD AND MAIL IT PROMPTLY IN THE
POSTAGE-PAID ENVELOPE PROVIDED, WHETHER OR NOT YOU PLAN TO ATTEND THE SPECIAL
MEETING IN PERSON. ANY EXECUTED BUT UNMARKED PROXY CARDS WILL BE VOTED FOR
APPROVAL OF THE MERGER. YOU MAY REVOKE YOUR PROXY IN THE MANNER DESCRIBED IN
THIS PROXY STATEMENT/PROSPECTUS AT ANY TIME BEFORE IT HAS BEEN VOTED AT THE
SPECIAL MEETING. IF YOU ATTEND THE SPECIAL MEETING, YOU MAY VOTE IN PERSON EVEN
IF YOU HAVE RETURNED A PROXY.

    THE INFORMATION IN THIS PROXY STATEMENT/PROSPECTUS IS SUBJECT TO COMPLETION
AND MAY BE CHANGED. ASPECT MAY NOT ISSUE THE ASPECT COMMON STOCK IN THE MERGER
UNTIL THE REGISTRATION STATEMENT IT HAS FILED WITH THE SECURITIES AND EXCHANGE
COMMISSION IS EFFECTIVE. NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY
STATE SECURITIES COMMISSION HAS APPROVED OR DISAPPROVED OF THESE SECURITIES OR
PASSED UPON THE ADEQUACY OR ACCURACY OF THIS PROXY STATEMENT/PROSPECTUS. ANY
REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE. THIS PROXY
STATEMENT/PROSPECTUS IS NOT AN OFFER TO SELL SUCH SECURITIES AND IT IS NOT
SOLICITING AN OFFER TO BUY SUCH SECURITIES IN ANY STATE WHERE THE OFFER OR SALE
IS NOT PERMITTED.
<PAGE>
    WE STRONGLY URGE YOU TO READ AND CONSIDER CAREFULLY THIS PROXY
STATEMENT/PROSPECTUS IN ITS ENTIRETY, INCLUDING THE MATTERS REFERRED TO UNDER
"RISK FACTORS" BEGINNING AT PAGE 12.

    THE COMMON STOCK OF ASPECT IS LISTED FOR QUOTATION ON THE NASDAQ STOCK
MARKET UNDER THE SYMBOL "ASDV."

                                      By Order of the Board of Directors,
                                      Deborah J. Schrader,
                                      Secretary

Yorba Linda, California
            , 2000

    This proxy statement/prospectus is dated       , 2000, and was first mailed
to stockholders on or about       , 2000.

Dated: [date]

                                       2
<PAGE>
                                   PROSPECTUS

    Aspect Development, Inc. (Aspect) and Transition Analysis Component
Technology, Inc. (TACTech) have entered into a merger agreement. As a result of
the merger contemplated by the merger agreement, TACTech would become a
wholly-owned subsidiary of Aspect. In the merger, TACTech stockholders would
receive 0.6647302 of a share of Aspect common stock for each share of TACTech
common stock cancelled as a result of the merger.

    The merger cannot be completed unless the holders of TACTech common stock
adopt the merger agreement that is described in this proxy statement/prospectus
and is attached as Annex A to this proxy statement/prospectus.

    TACTech's board of directors unanimously recommends that TACTech
stockholders vote for adoption of the merger agreement. In addition, Robert M.
Schrader, Robert E. Schrader, Stacy J. Schrader, Deborah J. Schrader, Martin
Fawer, Malcolm Baca, Bruce Blackford and Jeffrey Hanser, the holders of
approximately 66% of the outstanding TACTech common stock, have agreed to vote
for adoption of the merger agreement.

    All share and share price information concerning Aspect has been adjusted to
reflect the two-for-one stock split effected in August 1998 and the two-for-one
stock split effected in March 2000.

    This proxy statement/prospectus provides you with detailed information about
the merger agreement and the proposed merger. Please see "Where You Can Find
More Information" on page 66 for additional information on Aspect and TACTech.

                             AVAILABLE INFORMATION

    Aspect has filed with the commission a registration statement on Form S-4
under the Securities Act of 1933 (Securities Act), of which this proxy
statement/prospectus is a part. This proxy statement/prospectus does not contain
all of the information in the full registration statement and its exhibits. This
proxy statement/prospectus incorporates important business and financial
information that is not included in or delivered with this proxy
statement/prospectus. Statements made in this proxy statement/prospectus about
any contract, agreement or other document filed as an exhibit to the
registration statement or annexed to this proxy statement/prospectus are not
necessarily complete. In each instance for a more complete description you
should read such contract, agreement or other document. The registration
statement shall be deemed qualified in its entirety by this reference and the
exhibits.

    You should rely only on the information contained or incorporated by
reference in this proxy statement/prospectus. We have not authorized anyone to
provide you with information. Aspect is not making an offer of these securities
in any state where the offer is not permitted. You should not assume that the
information in this proxy statement/prospectus is accurate as of any date other
than the date on the front of this proxy statement/prospectus.
<PAGE>
                               TABLE OF CONTENTS

<TABLE>
<S>                                                           <C>
SUMMARY.....................................................       1

RISK FACTORS................................................      12

BUSINESS OF TACTECH.........................................      15

BUSINESS OF ASPECT..........................................      19

THE SPECIAL MEETING OF THE STOCKHOLDERS OF TRANSITION
  ANALYSIS
  COMPONENT TECHNOLOGY, INC.: DATE, TIME AND PLACE OF THE
  SPECIAL MEETING...........................................      28

  Matters To Be Considered At The Special Meeting...........      28

  Voting at the Special Meeting; Record Date; Quorum........      28

  Proxies...................................................      28

THE MERGER..................................................      29

  Background Of The Merger..................................      29

  TACTech's Reasons For The Merger..........................      31

  Aspect's Reasons For The Merger...........................      32

  Federal Income Tax Considerations.........................      33

  Accounting Treatment......................................      35

  Regulatory Approvals......................................      35

  Appraisal Rights..........................................      35

  Restriction on Resales of Aspect Common Stock.............      36

THE MERGER AGREEMENT........................................      37

  Closing and Effective Time of the Merger..................      37

  Exchange of Stock Certificates............................      37

  Representations and Warranties............................      38

  Covenants; Conduct of the Businesses Prior to the
    Merger..................................................      38

  No Solicitation of Acquisition Proposals..................      40

  Conditions to the Merger..................................      41

  Conduct of the Business of the Combined Companies
    Following the Merger....................................      43

  Termination...............................................      44

VOTING AGREEMENT............................................      45

INTERESTS OF CERTAIN PERSONS IN THE MERGER..................      46

COMPARISON OF RIGHTS OF HOLDERS OF SECURITIES OF ASPECT AND
  OF TACTECH................................................      46

DESCRIPTION OF TACTECH AND ASPECT CAPITAL STOCK.............      48
</TABLE>

                                       i
<PAGE>
<TABLE>
<S>                                                           <C>
STOCK OWNERSHIP BY DIRECTORS AND EXECUTIVE OFFICERS;
  VOTE REQUIRED.............................................      50

SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND
  MANAGEMENT OF TACTECH.....................................      51

SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND
  MANAGEMENT OF ASPECT......................................      52

SELECTED TACTECH HISTORICAL FINANCIAL DATA..................      54

MANAGEMENT'S DISCUSSION AND ANALYSIS OF TACTECH FINANCIAL
  CONDITION AND RESULTS OF OPERATIONS.......................      55

UNAUDITED PRO FORMA COMBINED CONDENSED FINANCIAL
  INFORMATION...............................................      61

PRO FORMA UNAUDITED COMBINED CONDENSED BALANCE SHEET AS OF
  DECEMBER 31, 1999.........................................      62

PRO FORMA UNAUDITED COMBINED CONDENSED STATEMENTS OF
  OPERATIONS YEAR ENDED DECEMBER 31, 1999...................      63

NOTES TO THE UNAUDITED PRO FORMA COMBINED CONDENSED
  FINANCIAL INFORMATION.....................................      64

LEGAL MATTERS...............................................      65

ACCOUNTANTS.................................................      65

EXPERTS.....................................................      65

STOCKHOLDER PROPOSALS AT THE COMPANY'S NEXT ANNUAL MEETING
  OF STOCKHOLDERS...........................................      65

WHERE YOU CAN FIND MORE INFORMATION.........................      66

OTHER MATTERS...............................................      67

TACTECH FINANCIAL STATEMENTS................................     F-1
</TABLE>

                                LIST OF ANNEXES

<TABLE>
<CAPTION>
        ANNEX
       NUMBER           DESCRIPTION
- ---------------------   -----------
<S>                     <C>
                        Merger Agreement and First Amendment (without schedules and
Annex A..............   exhibits)

Annex B..............   Section 262 of the Delaware General Corporation Law
</TABLE>

                                       ii
<PAGE>
                                    SUMMARY

    THIS SECTION HIGHLIGHTS SELECTED INFORMATION RELATED TO THE MERGER. HOWEVER,
IT MAY NOT CONTAIN ALL OF THE INFORMATION THAT IS IMPORTANT TO YOU. WE URGE YOU
TO READ THE ENTIRE DOCUMENT, INCLUDING THE EXHIBITS AND ANNEXES, AND THE
DOCUMENTS INCORPORATED BY REFERENCE.

THE COMPANIES

ASPECT (See Page 19)

    Aspect develops, markets and supports enterprise solutions combining
client/server software and content databases that enable manufacturers to
improve product development and business processes through component and
supplier management.

    On March 13, 2000, Aspect announced that it had entered into an agreement to
merge with i2 Technologies, Inc. (i2 Technologies), pursuant to which each share
of Aspect common stock, including the shares to be issued to the TACTech
stockholders as described herein, will be exchanged for 0.55 shares of common
stock of i2 Technologies.

    Aspect was originally incorporated in Pennsylvania in February 1990 and
reincorporated in Delaware in March 1993. Aspect's principle executive offices
are located at 1395 Charleston Road, Mountain View, California, and its
telephone number is (650) 428-2700.

TACTECH (See Page 15)

    TACTech was organized in 1987 as a 90%-owned subsidiary of Zing
Technologies, Inc. (Zing). It became an independently owned, stand-alone company
in 1997 as a result of a spinoff to Zing's stockholders. TACTech is a
semiconductor information service company which licenses proprietary software
tools combined with electronic semiconductor availability libraries and data
bases that are utilized by customers largely engaged in the defense and
aerospace industries, and by other industrial users of semiconductors, located
in the United States and elsewhere in the world.

    TACTech's data bases and libraries contain information covering more than
133,000 individual military semiconductor devices and more than 326,000
commercial and industrial devices. The data bases are continually updated and
are available for delivery to customers on a real-time on-line basis.

    TACTech has developed proprietary analysis procedures which produce a
production and available life cycle estimate for each device type contained in
its library. Customers can access TACTech's information either through a library
inquiry subscription service or through a service which applies TACTech's life
cycle and compatibility analytical tools to the customer's complete product bill
of materials.

    TACTech will become a wholly-owned subsidiary of Aspect after the merger.

    The mailing address of the principal executive office of TACTech is 22687
Old Canal Road, Yorba Linda, California, 92887-4608, and its telephone number is
(714) 974-7676.

ASTA MERGER SUB

    Asta Merger Sub is a wholly-owned subsidiary of Aspect formed in Delaware
for the sole purpose of the merger. Asta Merger Sub's principal executive
offices are located at 1395 Charleston Road, Mountain View, California, and its
telephone number is (650) 428-2700.

THE ASPECT MERGER (See Page 29)

    TACTech stockholders are being asked to approve the merger of TACTech and
Asta Merger Sub. After the merger, all of the shares of TACTech common stock
will be cancelled, and the current TACTech

<PAGE>
stockholders will receive a total of up to 450,848 shares of Aspect common stock
in exchange. TACTech will become a wholly-owned subsidiary of Aspect.

THE SPECIAL MEETING (See Page 28)

    The special meeting of TACTech stockholders will be held at [8:00] A.M. on
[April 20,] 2000. Stockholders will be asked to approve the merger with Aspect.
Approval by two-thirds of the outstanding shares of TACTech common stock is
required to approve the merger. On the record date, TACTech directors, executive
officers and their affiliates owned and had the right to vote 176,831 shares of
TACTech common stock (approximately 29.4% of the TACTech common stock then
outstanding).

REGULATORY APPROVALS (See Page 35)

    Aspect and TACTech are not required to notify the Federal Trade Commission
(FTC) or the Antitrust Division of the United States Department of Justice
(Antitrust Division) before completing the merger. However, either the FTC or
the Antitrust Division has the authority to challenge the merger on antitrust
grounds before or after the merger is completed.

FEDERAL INCOME TAX CONSEQUENCES (See Page 33)

    It is a condition to the completion of the merger that Aspect and TACTech
receive legal opinions from their outside counsel to the effect that the merger
constitutes a tax-free reorganization within the meaning of Section 368(a) of
the Internal Revenue Code. If the merger qualifies as a tax-free reorganization,
TACTech stockholders will not recognize any gain or loss for United States
federal income tax purposes when they exchange their shares of TACTech common
stock for Aspect common stock. However, TACTech stockholders may recognize gain
or loss if they receive cash instead of a fractional share of Aspect common
stock.

    Tax matters are very complicated and the tax consequences of the merger for
TACTech stockholders will depend on the facts of their situations. Each TACTech
stockholder should consult his tax advisor for a full understanding of the tax
consequences of the merger to him.

APPRAISAL RIGHTS (See Page 35)

    Under the Delaware General Corporation Law, the holders of TACTech common
stock have the right to seek an appraisal of, and to be paid the fair value of,
their shares. Section 262 of the Delaware General Corporation Law, which governs
the rights of stockholders who wish to seek appraisal of their shares, is
summarized under the heading "Appraisal Rights" on pages 35 and 36, and is
attached as Annex B.

THE I2 TECHNOLOGIES/ASPECT MERGER

    Pursuant to a merger agreement announced on March 13, 2000, Aspect has
agreed to be acquired by i2 Technologies in a merger transaction in which, if
completed, Aspect would become a subsidiary of i2 Technologies and the
outstanding common stock of Aspect would be converted into i2 Technologies
common stock at the rate of 0.55 shares of i2 Technologies common stock for each
share of Aspect common stock. Options held by Aspect employees, including
options held by TACTech employees that are assumed by Aspect in connection with
the acquisition of TACTech by Aspect, will be assumed by i2 Technologies on an
equivalent basis. The i2 Technologies merger is expected to qualify as a
tax-free reorganization within the meaning of Section 368(a) of the Internal
Revenue Code and will be accounted for as a purchase. As of April 3, 2000, the
closing price of the i2 Technologies common stock on the Nasdaq National Market
was $92.75.

    The merger agreement is subject to a number of conditions, including
approval by the stockholders of both Aspect and i2 Technologies and applicable
regulatory approvals. Stockholders of Aspect holding

                                       2
<PAGE>
approximately 27% of the outstanding common stock of Aspect have agreed to vote
in favor of the i2 Technologies merger. The meeting of stockholders of Aspect to
vote on the i2 Technologies merger has not yet been scheduled. If the record
date for determining the stockholders of Aspect entitled to vote on the i2
Technologies merger is earlier than the closing date of the merger of TACTech
and Aspect, the shareholders of TACTech will not be given an opportunity to be
informed about or to vote on the i2 Technologies transaction.

    i2 Technologies is the leading global provider of intelligent eBusiness
solutions. Founded in 1988, i2 Technologies's vision is to add $50 billion of
value for its customers by the year 2005. i2 Technologies is headquartered in
Dallas, Texas, has approximately 3,000 employees and maintains offices
worldwide.

    Additional information concerning the i2 Technologies merger can be found in
Aspect's Form 8-K Report filed on March 17, 2000 and the Schedule 13D Report
filed by i2 Technologies on March 22, 2000 and is not included in this proxy
statement/prospectus.

MARKET FOR COMMON STOCK (See Pages 9 and 10)

    TACTech common stock is traded in the over-the-counter ("bulletin board")
market for securities that do not meet the Nasdaq SmallCap market listing
requirements under the symbol "TRZA". Aspect's common stock has been traded on
the NASDAQ National Market under the symbol "ASDV" since Aspect's initial public
offering in May 1996. According to Aspect's transfer agent, Aspect had
approximately 199 stockholders of record as of January 14, 2000. Because many of
Aspect's shares are held by brokers and other institutions on behalf of
stockholders, Aspect is unable to estimate the total number of stockholders
represented by these recordholders. On January 14, 2000, the last trading date
prior to the announcement of the merger, the last reported sale price per share
for Aspect common stock on the Nasdaq National Market and the last reported sale
price per share for TACTech common stock on the bulletin board market were as
follows:

<TABLE>
<CAPTION>
                                                                  ASPECT            TACTECH
                                                               COMMON STOCK      COMMON STOCK
                                                              PER SHARE PRICE   PER SHARE PRICE
                                                              ---------------   ---------------
<S>                                                           <C>               <C>
January 14, 2000............................................      $35.56            $19.875
</TABLE>

                                       3
<PAGE>
               SELECTED HISTORICAL SUMMARY FINANCIAL INFORMATION

    The selected historical summary financial information of Aspect set forth
below should be read in conjunction with the consolidated financial statements
and the notes to the consolidated financial statements incorporated by reference
in this proxy statement/prospectus. The Aspect consolidated statement of
operations data for the years ended December 31, 1999, 1998 and 1997 and the
consolidated balance sheet data as of December 31, 1999 and 1998, are derived
from, and are qualified by reference to, the audited consolidated financial
statements of Aspect incorporated by reference in this proxy statement/
prospectus. The consolidated statement of operations data for the years ended
December 31, 1996 and 1995, and the consolidated balance sheet data as of
December 31, 1997, 1996 and 1995, are derived from audited consolidated
financial statements of Aspect not included, or incorporated by reference, in
this proxy statement/prospectus.

    The selected historical summary financial information of TACTech set forth
below should be read in conjunction with the consolidated financial statements
and the notes to the consolidated financial statements included in this proxy
statement/prospectus. The consolidated statement of operations data for the
years ended June 30, 1999 and 1998, and the consolidated balance sheet data as
of June 30, 1999 and 1998, are derived from the consolidated financial
statements of TACTech as included in its June 30, 1999 Form 10-KSB (as amended)
and included in this proxy statement/prospectus. The consolidated statement of
operations data for the six months ended December 31, 1999 and 1998, and the
consolidated balance sheet data as of December 31, 1999, are derived from the
condensed consolidated financial statements of TACTech as included in its
December 31, 1999 Form 10-QSB and included in this proxy statement/ prospectus,
which have been prepared by TACTech on a basis consistent with the consolidated
financial statements included in this proxy statement/prospectus and, in the
opinion of management, include all adjustments, consisting only of normal
recurring adjustments, necessary for the fair presentation of the data. The
results of operations for these interim periods are not necessarily indicative
of results to be expected for any subsequent period.

                                       4
<PAGE>
             ASPECT SELECTED HISTORICAL CONSOLIDATED FINANCIAL DATA
                    (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)

<TABLE>
<CAPTION>
                                                               YEAR ENDED DECEMBER 31,
                                                 ----------------------------------------------------
                                                   1999       1998       1997       1996       1995
                                                 --------   --------   --------   --------   --------
<S>                                              <C>        <C>        <C>        <C>        <C>
CONSOLIDATED STATEMENT OF OPERATIONS DATA:
Total revenues.................................  $95,145    $86,365    $49,929    $30,458    $15,563
Total cost of revenues.........................   15,550     11,556      8,049      4,507      2,731
Gross profit...................................   79,595     74,809     41,880     25,951     12,832
Operating income (loss)........................    3,773     17,772     (5,679)      (381)    (2,580)
Net income (loss)..............................  $ 7,779    $16,025    $(4,871)   $   885    $(2,545)
                                                 -------    -------    -------    -------    -------
Net income (loss) per share--basic.............  $  0.13    $  0.27    $ (0.09)   $  0.02    $ (0.07)
                                                 -------    -------    -------    -------    -------
Net income (loss) per share--diluted...........  $  0.12    $  0.24    $ (0.09)   $  0.02    $ (0.07)
                                                 -------    -------    -------    -------    -------
Number of shares used in computing per share
  amounts--basic...............................   58,726     59,862     55,268     48,020     36,100
                                                 -------    -------    -------    -------    -------
Number of shares used in computing per share
  amounts--diluted.............................   66,180     66,300     55,268     55,020     36,100
                                                 -------    -------    -------    -------    -------
</TABLE>

<TABLE>
<CAPTION>
                                                                      DECEMBER 31,
                                                  ----------------------------------------------------
                                                    1999       1998       1997       1996       1995
                                                  --------   --------   --------   --------   --------
<S>                                               <C>        <C>        <C>        <C>        <C>
CONSOLIDATED BALANCE SHEET DATA:
Cash and cash equivalents and short-term
  investments...................................  $76,204    $81,473    $55,056    $57,831     $6,095
Working capital.................................   83,672     79,438     48,521     56,440      3,927
Total assets....................................  135,904    114,782     81,720     73,273     14,159
Long-term obligations, less current portion            --         --         11      2,365      2,620
Stockholders' equity............................   98,779     88,840     58,574     58,746      3,855
</TABLE>

                                       5
<PAGE>
                     TACTECH SUMMARY FINANCIAL INFORMATION
                    (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)

<TABLE>
<CAPTION>
                                                                                  SIX MONTHS ENDED
                                                           YEAR ENDED JUNE 30,      DECEMBER 31,
                                                           -------------------   -------------------
                                                             1999       1998       1999       1998
                                                           --------   --------   --------   --------
<S>                                                        <C>        <C>        <C>        <C>
CONSOLIDATED STATEMENT OF OPERATIONS DATA:
Total revenues...........................................   $4,512     $3,483     $2,509     $2,127
Operating income (loss)..................................      214       (693)       129         57
Net income (loss)........................................   $  150     $ (735)    $    5     $   22
                                                            ------     ------     ------     ------
Net income (loss) per share--basic.......................   $ 0.25     $(1.25)    $ 0.01     $ 0.04
                                                            ------     ------     ------     ------
Net income (loss) per share--diluted.....................   $ 0.24     $(1.25)    $ 0.01     $ 0.04
                                                            ------     ------     ------     ------
Number of shares used in computing per share
  amounts--basic.........................................      599        586        599        599
                                                            ------     ------     ------     ------
Number of shares used in computing per share amounts--
  diluted................................................      621        586        639        617
                                                            ------     ------     ------     ------
</TABLE>

<TABLE>
<CAPTION>
                                                                   JUNE 30,         DECEMBER 31,
                                                              -------------------   ------------
                                                                1999       1998         1999
                                                              --------   --------   ------------
<S>                                                           <C>        <C>        <C>
CONSOLIDATED BALANCE SHEET DATA:
Cash and cash equivalents and short-term investments........   $ 212      $ 120         $ 420
Working capital (deficit)...................................    (558)      (106)         (501)
Total assets................................................   1,768      1,394         1,876
Long-term obligations, less current portion.................      --        620            --
Stockholders' equity (deficit)..............................    (120)      (271)         (115)
</TABLE>

                                       6
<PAGE>
                      SUMMARY PRO FORMA UNAUDITED COMBINED
                        CONDENSED FINANCIAL INFORMATION
                    (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)

    The unaudited summary pro forma combined condensed financial information of
Aspect and TACTech is derived from the unaudited pro forma combined condensed
financial statements and should be read in conjunction with such pro forma
statements and the notes thereto, which are included elsewhere in this proxy
statement/prospectus. In preparing the pro forma combined condensed statement of
operations data, the TACTech operations have been included as if the merger had
occurred at the beginning of 1999. The unaudited pro forma combined condensed
information is presented for illustrative purposes only and is not necessarily
indicative of the operating results or financial position that would have
actually occurred if the acquisition had been consummated as of the beginning of
1999, nor is it necessarily indicative of future operating results or financial
position of the combined companies.

<TABLE>
<CAPTION>
                                                                 YEAR ENDED
                                                              DECEMBER 31, 1999
                                                              -----------------
<S>                                                           <C>
STATEMENT OF OPERATIONS DATA:
Total revenues..............................................      $100,039
Total cost of revenues......................................        15,550
Gross profit................................................        84,489
Income from operations......................................         1,278
Net income..................................................         5,154
Net income per share--basic.................................      $   0.09
Net income per share--diluted...............................      $   0.08
Number of shares used in computing per share
  amounts--basic............................................        59,122
Number of shares used in computing per share
  amount--diluted...........................................        66,616
</TABLE>

<TABLE>
<CAPTION>
                                                              DECEMBER 31, 1999
                                                              -----------------
<S>                                                           <C>
BALANCE SHEET DATA AT PERIOD END:
Cash and cash equivalents and short-term investments........      $ 76,624
Working capital.............................................        82,971
Total assets................................................       151,665
Total stockholders' equity..................................       112,349
</TABLE>

                                       7
<PAGE>
                           COMPARATIVE PER SHARE DATA

    The following table sets forth certain historical per share data of Aspect
and TACTech and combined per share data on an unaudited pro forma basis after
giving effect to the merger and assuming that 0.6647302 of a share of Aspect
common stock is issued in exchange for each outstanding share of TACTech common
stock and stock underlying options and warrants. This data should be read in
conjunction with the selected historical financial information, the pro forma
unaudited combined condensed financial information and the separate historical
consolidated financial statements of Aspect and notes thereto and historical
consolidated financial statements of TACTech and notes thereto, incorporated by
reference or included elsewhere in this proxy statement/prospectus. The pro
forma unaudited combined condensed financial information is not necessarily
indicative of the operating results that would have been achieved had the
transaction been in effect as of the beginning of the periods presented and
should not be construed as representative of future operating results.

    The equivalent TACTech pro forma share amounts are calculated by multiplying
the combined pro forma per share amounts by the estimated exchange ratio of
0.6647302 of a share of Aspect common stock for each share of TACTech common
stock.

    Pro forma combined earnings per share reflects Aspect's net income for the
year ended December 31, 1999, and TACTech's net income for the six months ended
June 30, 1999 combined with the six months ended December 31, 1999, and is based
upon Aspect's weighted average common shares outstanding for fiscal 1999, and
approximately 396,000 shares of Aspect's common stock assumed to be issued in
the merger, which excludes options and warrants to purchase approximately 54,000
shares of common stock which will be assumed in the merger.

<TABLE>
<CAPTION>
                                                              YEAR ENDED OR AS OF
                                                               DECEMBER 31, 1999
                                                              -------------------
<S>                                                           <C>
Historical--Aspect
  Net income per share
    Net income per share--basic.............................         $0.13
    Net income per share--diluted...........................         $0.12
Book value per share........................................         $1.67
</TABLE>

<TABLE>
<CAPTION>
                                                          YEAR ENDED OR AS OF   6 MONTHS ENDED OR AS OF
                                                             JUNE 30, 1999         DECEMBER 31, 1999
                                                          -------------------   -----------------------
<S>                                                       <C>                   <C>
Historical--TACTech
  Net income per share
    Net income per share--basic.........................        $ 0.25                  $ 0.01
    Net income per share--diluted.......................        $ 0.24                  $ 0.01
Book value per share....................................        $(0.20)                 $(0.19)
</TABLE>

<TABLE>
<CAPTION>
                                                              YEAR ENDED OR AS OF
                                                               DECEMBER 31, 1999
                                                              -------------------
<S>                                                           <C>
Pro Forma combined net income per share
  Pro forma combined net income per Aspect share--basic.....         $0.09
  Pro forma combined net income per Aspect share--diluted...         $0.08
  Equivalent pro forma net income per TACTech
    share--basic............................................         $0.06
  Equivalent pro forma net income per TACTech
    share--diluted..........................................         $0.05

Pro Forma combined book value per share
  Pro forma combined book value per Aspect share............         $1.90
  Equivalent pro forma book value per TACTech share.........         $1.26
</TABLE>

                                       8
<PAGE>
                      MARKET PRICES OF TACTECH SECURITIES

    The common stock of TACTech is traded in the over-the-counter ("bulletin
board") market for securities that do not meet the Nasdaq Small Cap Market
listing requirements under the symbol "TRZA." The following table sets forth the
high and low closing prices of TACTech's common stock for the periods presented.
Quotations reflect inter-dealer prices, without retail mark-up, mark-down or
commission, and may not represent actual transactions.

<TABLE>
<CAPTION>
                                                                HIGH       LOW
                                                              --------   --------
<S>                                                           <C>        <C>
Fiscal Year Ending June 30, 1998
  First Quarter.............................................   $ 8.50     $ 0.93
  Second Quarter............................................     8.50       4.00
  Third Quarter.............................................     8.00       4.62
  Fourth Quarter............................................     8.00       4.50

Fiscal Year Ending June 30, 1999
  First Quarter.............................................   $ 7.50     $ 5.50
  Second Quarter............................................     9.50       4.50
  Third Quarter.............................................    12.00       6.50
  Fourth Quarter............................................    11.00       5.00

Fiscal Year Ending June 30, 2000
  First Quarter.............................................   $19.56     $ 8.00
  Second Quarter............................................    13.25       6.50
  Third Quarter to March 28, 2000...........................    45.13      14.25
</TABLE>

    As of March 28, 2000, the price of TACTech's common stock was $42.00. As of
March 28, 2000, there were 598,734 shares of common stock outstanding owned by
44 holders of record.

    No cash dividends have been paid on TACTech's common stock for the fiscal
years ended June 30, 1999 and 1998. The present policy of TACTech is to retain
earnings to provide funds for the operations and expansion of its business.
Under an existing bank credit facility, TACTech may not pay dividends without
the consent of the bank.

                                       9
<PAGE>
                       MARKET PRICES OF ASPECT SECURITIES

    Aspect's common stock has been traded on the Nasdaq National Market under
the symbol "ASDV" since Aspect's initial public offering in May 1996. According
to Aspect's transfer agent, Aspect had approximately 179 stockholders of record
as of April 3, 2000. Because many of such shares are held by brokers and other
institutions on behalf of stockholders, Aspect is unable to estimate the total
number of stockholders represented by these recordholders. The following table
sets forth the high and low closing prices of Aspect's common stock for the
periods presented.

<TABLE>
<CAPTION>
                                                                HIGH       LOW
                                                              --------   --------
<S>                                                           <C>        <C>
FISCAL YEAR ENDED DECEMBER 31, 1998
  First Quarter.............................................   $13.72     $10.57
  Second Quarter............................................    19.03      13.28
  Third Quarter.............................................    21.28      14.28
  Fourth Quarter............................................    22.16       8.88

FISCAL YEAR ENDED DECEMBER 31, 1999
  First Quarter.............................................   $20.50     $11.35
  Second Quarter............................................    11.21       3.28
  Third Quarter.............................................    13.00       7.50
  Fourth Quarter............................................    34.25      12.63

FISCAL YEAR ENDED DECEMBER 31, 2000
  First Quarter to April 3, 2000............................   $96.81     $33.13
</TABLE>

    Aspect's policy has been to reinvest earnings to fund future growth.
Accordingly, Aspect has not paid dividends and does not anticipate declaring
dividends on its common stock in the foreseeable future.

                                       10
<PAGE>
                           COMPARATIVE PER SHARE DATA

    MARKET PRICE DATA

    The table below presents the closing prices per share of Aspect common stock
on the Nasdaq National Market and of TACTech common stock on the
over-the-counter market for securities that do not meet the Nasdaq Small Cap
Market listing requirements on January 14, 2000, the last full trading day
immediately preceding the public announcement of the proposed merger, and on
March 28, 2000, the last practicable day for which closing prices were available
at the time of the mailing of this proxy statement/ prospectus, as well as the
"equivalent stock price" of shares of TACTech common stock on such dates. The
"equivalent stock price" of shares of TACTech common stock represents the per
share closing price for Aspect common stock on the Nasdaq National Market at
such specified date, multiplied by the exchange ratio of 0.6647302, which is the
number of shares of Aspect common stock that a TACTech stockholder would receive
for each share of TACTech common stock. TACTech stockholders should obtain
current market quotations for the shares of Aspect common stock and TACTech
common stock prior to making any decision which respect to the merger.

<TABLE>
<CAPTION>
                                                 ASPECT                TACTECH                TACTECH
                                              COMMON STOCK          COMMON STOCK       EQUIVALENT STOCK PRICE
                                           (DOLLARS PER SHARE)   (DOLLARS PER SHARE)    (DOLLARS PER SHARE)
                                           -------------------   -------------------   ----------------------
<S>                                        <C>                   <C>                   <C>
January 14, 2000.........................         35.56                19.875                  23.638
March 28, 2000...........................        84.188                 42.00                  55.962
</TABLE>

                                       11
<PAGE>
                                  RISK FACTORS

    THE FOLLOWING FACTORS RELATING TO THE BUSINESS OF ASPECT AND THE RISKS OF
HOLDING ASPECT COMMON STOCK SHOULD BE CONSIDERED CAREFULLY BY THE STOCKHOLDERS
OF TACTECH IN DETERMINING WHETHER TO VOTE IN FAVOR OF THE MERGER. IN THIS
SECTION OF THE PROXY STATEMENT/PROSPECTUS, "WE," "US" OR "OUR" REFERS TO ASPECT.

DUE TO OUR PENDING MERGER WITH I2 TECHNOLOGIES, WE ARE SUBJECT TO RISKS
AFFECTING I2'S STOCK PRICE AND THE RISK THAT THAT MERGER MAY NOT BE COMPLETED.

    We announced on March 13, 2000 that we have entered into a merger agreement
with i2 Technologies pursuant to which our stockholders will receive 0.55 shares
of i2 Technologies common stock for each outstanding share of our common stock.
Since we may terminate the agreement only in very limited circumstances and the
exchange ratio is not subject to adjustment, our stock price will be affected by
changes in the i2 stock price. Accordingly, our stockholders are subject to the
risk of downward movement in our stock price as a result of adverse developments
in i2's business. Moreover, if for any reason we are unable to complete the
merger with i2, the price of our common stock may be adversely affected. These
risk factors do not reflect any risks related to the prospective merger of
Aspect into i2 Technologies or the possible failure of such merger to be
approved or consummated.

OUR REVENUES AND OPERATING RESULTS MAY FLUCTUATE AND CAUSE OUR STOCK PRICE TO
DECLINE.

    Our revenues and operating results have fluctuated in the past and may
continue to do so in the future. If our quarterly or annual operating results do
not meet the expectations of securities analysts and investors, the market price
of our common stock could decline significantly. Our revenues and operating
results could be materially adversely affected by many factors, some of which
are outside our control, including, among others:

    - the relatively long sales and implementation cycles for our products;

    - the size and timing of individual license transactions;

    - seasonality of revenues;

    - changes in our operating expenses;

    - changes in the mix of products and services sold;

    - timing of introduction or enhancement of products by us or our
      competitors;

    - market acceptance of new products;

    - technological changes in software or database technology;

    - personnel changes and difficulties in attracting and retaining qualified
      sales, marketing, technical and consulting personnel;

    - changes in customers' budgeting cycles;

    - foreign currency exchange rates;

    - quality control of products sold; and

    - economic conditions generally and in specific industry segments.

OUR BUSINESS DEPENDS ON SEASONAL SALES, WHICH MAY SUBJECT US TO FINANCIAL RISKS.

    Our business has experienced and is expected to continue to experience
seasonality, in part due to customer buying patterns and our expense patterns.
In recent years, we have generally had stronger demand for our products during
the quarter ending December 31 and have incurred higher personnel costs in the
quarter ending June 30. We believe that these patterns will continue for the
foreseeable future.

                                       12
<PAGE>
BECAUSE OUR BUSINESS DEPENDS ON SHORT-TERM LICENSE REVENUES, OUR INABILITY TO
COMPENSATE FOR ANY UNEXPECTED SHORTFALL COULD HURT OUR BUSINESS.

    Licenses of our decision support software and reference data products have
historically accounted for the substantial majority of our revenues, and we
anticipate that this trend will continue for the foreseeable future. We
generally ship products within a short period of time after execution of a
license agreement. As a result, we typically do not have a material backlog of
unfilled license orders, and revenues in any quarter are substantially dependent
on license revenues recognized in that quarter. Our expense levels are based, in
part, on our expectations as to future revenues and to a large extent are fixed
in the short term. Accordingly, we may be unable to adjust spending in a timely
manner to compensate for any unexpected shortfall in revenues, and any
significant shortfall of demand in relation to our expectations or any material
delay of customer orders would have an almost immediate material adverse effect
on our business, financial condition or results of operations. As a result, it
is likely that in some future period our results of operations could fail to
meet the expectations of public market analysts or investors. In such event, or
in the event that adverse conditions prevail or are perceived to prevail
generally or with respect to our business, the price of our common stock would
likely drop significantly.

OUR SALES TO CUSTOMERS MAY BE DELAYED.

    The licensing of our decision support software and reference data products
generally requires us to engage in a sales cycle lasting six to twelve months or
longer, during which we typically provide a significant level of education to
prospective customers regarding the use and benefits of our products. In
addition, the implementation of our standard products typically involves a
significant commitment of resources by our customers over an extended period of
time and is commonly associated with reengineering of product development and
business processes. For these reasons, sales and customer implementation cycles
are subject to delays over which we may have little or no control. Any delay in
the sale or customer implementation of a larger license or a number of smaller
licenses would have a material adverse effect on our business, financial
condition or results of operations and cause our operating results to vary
significantly from quarter to quarter.

WE DEPEND ON A LIMITED NUMBER OF PRODUCTS.

    We currently derive substantially all of our revenues from the licensing of
our decision support software and family of reference content databases and fees
from related services. These products and services are expected to continue to
account for substantially all of our revenues for the foreseeable future. While
we believe that to date our customers have not experienced significant problems
with such products, if our customers were to do so in the future or if they were
dissatisfied with product functionality or performance, our business, financial
condition or results of operations could be materially adversely affected.

COMPETITION OR TECHNOLOGICAL CHANGE MAY HURT OUR BUSINESS.

    The market for business to business electronic commerce solutions is
extremely competitive. We expect competition to intensify as current competitors
expand their product offerings and new competitors enter the market. There can
be no assurance that our products will achieve broader market acceptance or that
we will be successful in marketing our products or enhancements thereto. In the
event that our current or future competitors release new products that have more
advanced features, offer better performance or are more price competitive than
our products, demand for our products would decline. A decline in demand for, or
market acceptance of, the Explore software or reference content databases as a
result of competition, technological change, evolution of the Internet or other
factors would have a material adverse effect on our business, financial
condition or results of operations.

                                       13
<PAGE>
WE MAY NOT BE ABLE TO SUPPORT OUR GROWTH EFFECTIVELY.

    We have experienced significant growth in the number of our employees, the
scope of our operating and financial systems and the geographic area of our
operations, which has placed a significant strain on our management. Our future
results of operations will depend in part on the ability of our officers and
other key employees to continue to implement and expand our operational,
customer support and financial control systems and to expand, train and manage
our employee base. In addition, we believe that our future success will also
depend to a significant extent upon our ability to attract, train and retain
highly skilled technical, management, sales, marketing and consulting personnel.
Competition for such personnel is intense, and we expect that such competition
will continue for the foreseeable future. We have from time to time experienced
difficulty in locating candidates with appropriate qualifications. There can be
no assurance that we will be successful in attracting or retaining such
personnel, and the failure to attract or retain such personnel could have a
material adverse effect on our business, financial condition or results of
operations.

OUR FAILURE TO BE YEAR 2000 COMPLIANT COULD HURT OUR BUSINESS.

    Although we believe that all of our current products record, store, process,
calculate and present calendar dates falling on or after (and if applicable,
spans of time including) January 1, 2000, and will calculate any information
dependent on or relating to such dates in the same manner, and with the same
functionality, data integrity and performance, as such products record, store,
process, calculate and present calendar dates on or before December 31, 1999,
Y2K compliance issues may arise with respect to customers, internal management
systems or third-party suppliers that may result in unforeseen costs or delays
and therefore may have a material adverse effect on us.

WE MAY MAKE FUTURE ACQUISITIONS.

    To implement our business plans, we may make further acquisitions in the
future, which will require significant financial and management resources both
at the time of the transaction and during the process of integrating the
newly-acquired business into our operations. Our operating results could be
adversely affected if we are unable to successfully integrate such new companies
into its operations. There can be no assurance that any acquired products,
technologies or businesses will contribute at anticipated levels to our sales or
earnings, or that sales and earnings from combined businesses will not be
adversely affected by the integration process. Certain acquisitions or strategic
transactions may be subject to approval by the other party's board of directors
or stockholders, domestic or foreign governmental agencies or other third
parties. Accordingly, there is a risk that important acquisitions or
transactions could fail to be concluded as planned. Future acquisitions by us
could also result in issuances of equity securities or the rights associated
with the equity securities, which could potentially dilute earnings per share.
In addition, future acquisitions could result in the incurrence of additional
debt, taxes, contingent liabilities, amortization expenses related to goodwill
and other intangible assets and expenses incurred to align the accounting
policies and practices of the acquired companies with our accounting policies
and practices. These factors could adversely affect our future operating
results, financial position and cash flows as some of our competitors have
pursued a strategy of growth through acquisition, and there is a risk that
future acquisitions could be more expensive due to competition among bidders for
target companies.

OUR SUCCESS DEPENDS ON SALES TO LIMITED CUSTOMERS.

    Historically, a relatively small number of customers have accounted for a
significant percentage of our total revenues, and we expect that we will
continue to experience significant customer concentration for the foreseeable
future. There can be no assurance that such customers or any other customers
will in the future continue to license or purchase products or services from us
at levels that equal or exceed those of prior periods, or at all.

                                       14
<PAGE>
OUR SUCCESS DEPENDS ON CERTAIN STRATEGIC RELATIONSHIPS.

    We believe that, in order to provide competitive Inbound Supply Chain
Management solutions, it will be necessary to develop, maintain and enhance
close associations with other enterprise data management vendors such as
eProcurement, database, hardware, data, Enterprise Resource Planning (ERP),
Product Data Management (PDM), Advanced Planning & Scheduling, Computer Aided
Design (CAD) and professional service companies. We have established marketing,
selling and consulting relationships with many such vendors, but there can be no
assurance that we will be able to maintain its existing relationships or enter
into new relationships with such vendors.

OUR INTERNATIONAL BUSINESS OPERATIONS EXPOSE US TO RISKS.

    We have operations in Bangalore, India with 422 employees as of February 1,
2000. We are dependent to a significant extent upon the ability of our Indian
operations to successfully maintain and upgrade our reference data products. We
believe that the success of our Indian operations will depend in large part upon
our ability to attract, train and retain highly skilled technical and management
personnel in India. Competition for such personnel in India is intense, and
there can be no assurance that we will be successful in attracting a sufficient
number of qualified personnel. We are directly affected by the political and
economic conditions to which India is subject. In addition, many of our expenses
in India are paid in Indian currency, thereby subjecting us to the risk of
foreign currency fluctuations. Any difficulties in coordinating or managing the
Indian operations due to cultural, geographic, communication or other reasons
could have a material adverse effect on our business, financial condition or
results of operations.

WE MAY NOT SUCCESSFULLY IMPLEMENT OUR BUSINESS STRATEGY.

    As part of our business strategy, we intend, directly and through
relationships with our strategic partners, to support marketplaces which conduct
business to business electronic commerce. If this business strategy is flawed,
or if we are unable to execute it effectively, our business, operating results,
and financial condition could be materially impacted. This strategy is unproven
and we have limited experience in this area. We cannot assure you that we will
generate significant revenues from these areas.

                              BUSINESS OF TACTECH

INTRODUCTION

    TACTech was incorporated in Delaware in 1987 and was owned 90% by Zing until
June 30, 1997, when the common stock of TACTech was distributed by Zing to its
stockholders. TACTech is a semiconductor information service company which
licenses proprietary computer software tools combined with electronic
semiconductor availability libraries and data bases that are utilized by various
segments of the Department of Defense, the defense/aerospace industry, and
industrial users of semiconductors and manufacturers and distributors of
semiconductors. When accessed by customers, the libraries and data bases provide
subscribers with valuable tools for determining the availability of
semiconductors showing those manufacturers actively producing the subject
semiconductor and the projected life cycle (obsolescence) of such
semiconductors. The system identifies functionally interchangeable devices, when
available, from various manufacturers. At present, TACTech's libraries and data
bases are utilized by its customers primarily in connection with designing,
engineering, manufacturing and maintaining electronic systems applications. As
of December 31, 1999, TACTech services were subscribed to by eighty six
(86) customers located in the United States, one (1) customer located in Canada
and fourteen (14) customers located outside the continental United States.
Approximately 85% of TACTech's revenues are derived from military projects,
primarily through government contractors and subcontractors. U.S. government
agencies themselves account for approximately 16% of TACTech's revenues in the
aggregate.

    The TACTech data bases and libraries contain the nomenclature and general
description for over 133,000 individual military semiconductor devices and over
326,000 commercial/ industrial devices.

                                       15
<PAGE>
TACTech's military library generally includes all standard microcircuits and
discrete devices with catalog specifications. The data bases are instantly
updated at TACTech's headquarters and delivered to customers on a real-time,
on-line basis. TACTech software provides a description and the general
specifications of each microcircuit and discrete device in the TACTech library,
thereby allowing the user to identify functionally interchangeable devices from
various manufacturers and to upgrade and rank devices according to packaging,
quality levels, projected production life cycle and availability based on
changes in technology and sources of supply. All semiconductors listed in
TACTech's library are ranked by reference to such factors.

    TACTech has developed proprietary analysis procedures and software to
provide a production life cycle projection assessment rating for each device
type (microcircuit, diode and transistor) contained in its library. TACTech's
production life cycle projections are determined by tracking specific
device-type attribute values such as speed, density, packaging, manufacturing
process, design-in acceptance and available sources of supply.

    TACTech's proprietary software allows its customers to receive information
from TACTech's library in useable formats through a personal computer with modem
access or through the Internet. The system allows for device type information
searches to be conducted on a form, fit and function equivalent basis and/or
alternate technology basis. Updates to TACTech's information library are
available to TACTech's customers on a real-time, on-line basis. Information
searches can be conducted by the customer on a base number search, through
parametric product description and by generic part number identification.
TACTech provides an automatic electronic discontinuance notification service
through its built-in software, which automatically notifies the subscriber of
changes in semiconductor availability with reference to the specific
subscriber's bill(s) of materials. In addition, the TACTech systems allow
contractors and designers to screen out obsolete semiconductors and provide for
the more predictable manufacturing and better maintenance of equipment, thus
helping to ensure a longer operational life of equipment.

    TACTech provides an information service that allows the user to convert most
military specification semiconductors to their closest industrial equivalent.
The conversion is based on electrical functionality as well as packaging
availability.

    TACTech generates revenues primarily through license agreements for its data
base services pursuant to which it receives subscription fees. These agreements
are generally for terms of 12 months, but may be canceled by either party upon
30 days notice.

    On September 22, 1997 TACTech issued 44,904 shares of its common stock for
all the issued shares of Research Analysis Corporation (RAC). In addition, each
of the two RAC selling stockholders received three-year employment agreements
with TACTech and stock options. Each employment agreement provides for an annual
base salary and certain employee benefits up to an aggregate of $200,000 and an
incentive bonus of up to $100,000 annually, measured by TACTech achieving
certain targeted sales goals. Options for up to 44,904 shares of TACTech's
common stock in the aggregate were also granted to the RAC selling stockholders
at an exercise price of $3.00 per share, which vest over a three-year period at
the rate of up to 14,968 shares per year. The right to exercise these options is
subject to incremental vesting as (and if) TACTech achieves certain targeted
sales goals. These options were not granted pursuant to TACTech's 1997 Option
Plan.

COMPETITION

    TACTech competes with many data service companies which possess greater
financial and human resources and which offer a greater variety of services than
does TACTech, including the prospective acquiror, Aspect. However, TACTech
believes that it offers its customers a unique set of information services that
have been specially developed to assist the military/aerospace and industrial
market in solving problems relating to the management of diminishing sources of
supply and technological obsolescence, as they pertain to semiconductor devices.

                                       16
<PAGE>
    TACTech believes that its TACTRAC bill-of-materials analysis product is one
of the few information tools available that combines specific configuration
design identity with system level bill of material indenturing breakdown from
which the information generated allows customers to make pro-active decisions
regarding potential problems concerning obsolete components.

SALES, LICENSING AND CUSTOMER SUPPORT

    TACTech maintains marketing, customer service and customer training
representatives in its Yorba Linda, California headquarters and marketing
representatives located in San Diego, New Orleans and Valhalla, New York.
TACTech markets its data services through highly trained and highly specialized
marketing personnel who contact prospective customers directly. TACTech also
promotes its services and identifies prospective customers through participation
in conferences and conventions dedicated predominantly or exclusively to the
issue of shrinking availability of semiconductor products due to a diminishing
number of manufacturing sources for specified products, or due to technological
obsolescence. Video sales aids and literature describing TACTech's data services
are also utilized in its marketing programs.

    TACTech generates revenue primarily through subscription service agreements.
TACTech's subscription services fall into two broad categories: (1) a basic
semiconductor information service which provides subscribers with a real-time
electronic semiconductor database library; and (2) the TACTRAC bill of materials
indenturing service, which consists of the basic TACTech library service
combined with proprietary software tools to process the configuration and
indenturing of customers' bills of materials and to enable the customer to view
solutions, analyses and reports.

    In the fiscal year ended June 30, 1999, sales to one customer of TACTech
exceeded 10% of TACTech's revenue. Sales to TACTech's five largest customers in
fiscal 1999 and 1998 accounted for approximately 33 percent and 17 percent,
respectively, of TACTech's revenues. Arrow Electronics, pursuant to an agreement
with TACTech, is the sole electronic component distributor that is permitted to
use TACTech's services. TACTech's management believes that if TACTech were to
lose Arrow Electronics as a customer, TACTech would be able to replace the
business lost from Arrow Electronics with business from other electronic
component distributors.

    TACTech's sales outside the United States are as follows:

<TABLE>
<CAPTION>
                                                              FISCAL 1999   FISCAL 1998
                                                              -----------   -----------
<S>                                                           <C>           <C>
Canada......................................................   $ 62,300      $ 33,900
Europe......................................................    459,600       187,300
Mid East....................................................     86,300        37,800
Far East....................................................     48,000        19,600
                                                               --------      --------
Total.......................................................   $656,200      $278,600
                                                               ========      ========
</TABLE>

    The basic TACTech service subscription price provides for free on-site
training for two representatives of the customer. The TACTRAC standard form of
licensing agreement provides for an optional one-time up-front fee to provide
training for customer database configuration loading and for users of the
analysis and report generation software.

    The training program covers two areas: operational and conceptual
understanding of the software program's capability and application training for
integrating the licensed software into the subscribers' system.

    Once on-line, a subscriber may call TACTech for technical assistance, at the
subscriber's cost, or use e-mail to obtain assistance. TACTech's standard form
of license agreement expressly disclaims any warranty, express or implied, for
the accuracy of its databases.

                                       17
<PAGE>
SECURITY MEASURES

    TACTech has adopted a series of layered and acquisitional security measures
and techniques to minimize risks from natural disasters and unauthorized access,
including redundant file storage, access control procedures and strong
encryption of data and data transmission. TACTech also controls system access
and allows its clients to apply a second level of security codes that protect
their private files.

SOURCE OF DATA BASES

    Information for TACTech's data bases and libraries is acquired from the
private and governmental sectors, including semiconductor manufacturers, defense
contractors and the unclassified records of the U.S. Government and its
agencies. Approximately two-thirds of TACTech's information for its data bases
comes from numerous companies in the private sector which generally make such
information available to persons having a recognized need for such information.
The remaining information is obtained from governmental sources which can be
accessed pursuant to the Freedom of Information Act.

COPYRIGHTS, TRADEMARKS AND LICENSES

    TACTech maintains copyright protection for its computer software and related
data base service and claims proprietary trade secret protection for its data
analysis techniques through customer licensing agreements. "TACTech" is a
registered trademark of TACTech. TACTech does not hold any patents to any of the
technology incorporated in its software or data services.

SOFTWARE DEVELOPMENT AND ENHANCEMENTS

    TACTech's development efforts principally focus on augmenting TACTech's
existing customer interface design, particularly to enhance ease of Internet
use, new information products, the further development of the commercial
component library, system security and the programming and maintaining of
TACTech's hardware and software.

EMPLOYEES

    As at June 30, 1999, TACTech employed forty (40) persons--seventeen
(17) persons in software development, data base maintenance and computer
maintenance; three (3) persons in data processing; eleven (11) persons in sales,
marketing and customer support; and nine (9) persons in administrative roles.
None of TACTech's employees is covered by a collective bargaining agreement.

PROPERTIES

    TACTech leases an 11,500 square feet facility in Yorba Linda, California at
a current cost of $6,660 per month. The lease expires in 2002. In addition,
TACTech bears its allocable portion of the property's common area maintenance
which cannot exceed 106% of the previous year's common area maintenance charge.
All of the facility is in productive use. TACTech also leases 1,366 square feet
of office space in San Diego, California at an average annual rental of
approximately $27,000. The lease will expire in 2001. Rental expense in 2000
will aggregate $113,000 and in 2001 it will aggregate $118,000. In 2002, after
the San Diego lease expires, rental expense will be $96,000 and for the three
months of the 2003 fiscal year until the Yorba Linda lease is due to expire,
rental expense will be $24,000.

LEGAL PROCEEDINGS

    TACTech is not party to any material pending legal proceedings nor, to
TACTech's knowledge, is any material legal proceeding threatened.

                                       18
<PAGE>
                               BUSINESS OF ASPECT

INTRODUCTION

    Aspect is the leading global provider of collaborative solutions for
business-to-business (B2B) eCommerce and inbound supply management. Aspect
solutions for the enterprise and for eMarkets and trade exchanges provide
decision support and content for procurement, product development, operations,
and eCommerce between trading partners. The Aspect solutions enable aggregation
and collaboration among design, procurement and operations functions across
multiple divisions within an enterprise, as well as solutions for establishing a
collaborative Internet Exchange, or portal. Aspect believes its B2B eCommerce
solutions can enable customers to reduce direct and indirect Maintenance, Repair
and Operations (MRO) spending and to accelerate new product introductions. Over
180 of the world's 200 largest companies are customers of Aspect.

    Aspect's decision support software, content, and data and consulting
services can reduce the cost of purchased parts and supplies, mission-critical
MRO and plant equipment; speed time to market through multi-division design
collaboration; and improve innovation and product quality through effective
supplier collaboration.

RECENT DEVELOPMENTS

    In January 2000, Aspect announced that it had signed a definitive agreement
to acquire TACTech. Under the terms of the agreement, TACTech shareholders will
receive approximately 450,000 shares of Aspect common stock in exchange for all
the outstanding stock of TACTech. The signed definitive agreement, which is
subject to the approval of TACTech's stockholders and certain other conditions,
will be accounted for by Aspect as a purchase.

    On March 13, 2000, i2 Technologies and Aspect announced a definitive
agreement to merge in a stock-for-stock transaction pursuant to which the
stockholders of Aspect will receive 0.55 shares of i2Technologies common stock
for each share of Aspect common stock. The merger has been unanimously approved
by the boards of directors of both companies and is subject to approval by
stockholders of both companies and other regulatory approvals. The meeting of
stockholders of Aspect to vote on the i2 Technologies merger has not yet been
scheduled. If the record date for determining the stockholders of Aspect
entitled to vote on the i2 Technologies merger is earlier than the closing date
of the merger of TACTech and Aspect, the shareholders of TACTech will not have
an opportunity to be informed about or to vote on the i2 Technologies
transaction.

CUSTOMERS

    Aspect's customers include more than 180 of the world's largest companies
spanning multiple industries such as electronics/high technology, aerospace and
defense, automotive, industrial equipment, energy, utilities,
chemical/pharmaceutical and consumer packaged goods (CPG). Aspect's revenues in
any period are substantially dependent upon a relatively small number of large
sales, ranging from $1 million to $20 million. Aspect expects that this trend
will continue for the foreseeable future. During the year ended December 31,
1999, Motorola and Cooper Industries accounted for 13.6% and 12.4% of total
revenues, respectively.

ASPECT SOLUTIONS

    Aspect offers three complementary and integrated solutions. Aspect's
Enterprise solutions enable multiple organizations and divisions within a single
business enterprise to collaborate on product development, sourcing and
procurement and operations decisions. Aspect's eXchange solutions enable
companies to quickly create or participate in B2B eCommerce exchanges with their
strategic suppliers and trading partners. Aspect's content solutions support
both Aspect's Enterprise and eXchange solutions.

                                       19
<PAGE>
ASPECT'S ENTERPRISE SOLUTIONS

    Large companies today typically have multiple autonomous divisions or
subsidiaries engaged in designing, manufacturing and selling products to
customers. Many have undergone significant mergers and acquisitions, further
compounding organizational complexity. Invariably, a proliferation of suppliers,
parts, components and materials occurs that is impossible to control without
enterprise-wide decision support processes and standardized content on parts,
components, materials and suppliers.

    Aspect's enterprise solutions for Component and Supplier Management (CSM)
are designed to give companies the decision support software and content needed
to streamline inbound supply and support collaboration among even the most
independent divisions and subsidiaries, as well as the extended supplier base.

    By collaborating on design, procurement and operations decisions, and
sharing standardized component and supplier content, Aspect's Enterprise
solutions enable companies to:

    - Reduce the cost of production parts and supplies by leveraging purchases
      on fewer items from a smaller supplier base

    - Reduce the cost of mission-critical MRO and office supplies

    - Accelerate product innovation and time-to-market by increasing component
      and design re-use across the enterprise

    - Increase product quality by increasing usage of "preferred" components and
      suppliers

    The Aspect Enterprise solution suite includes:

    - eSource: Decision support for strategic sourcing across multiple divisions

    - eDesign: Decision support for strategic product development through the
      use of preferred parts, designs and suppliers

    - eOperate: Decision support for the management of mission-critical MRO

ASPECT'S EXCHANGE SOLUTIONS

    The Internet has changed how companies do business with their suppliers and
customers, and has opened up new ways to increase profits by collaborating with
trading partners.

    Aggregation and collaboration deliver whole new types of benefits for trade
exchange participants, where:

    - Multiple buyers aggregate their spend to lower prices

    - Buyers and sellers expand the size of their collaboration community for
      the design of new products

    - Sellers reduce their cost of sales while attracting new business

    - Exchange operators secure additional participants by delivering new forms
      of value

ASPECT EXCHANGE SOLUTIONS INCLUDE:

    - eMarket: a tactical decision support application for trading exchanges,
      portals and online marketplaces. eMarket automates online
      business-to-business trading decisions; enables multiple-company purchases
      of a broad range of commodities; and extends enterprise design solutions
      to incorporate larger numbers of design collaboration participants via
      Internet connectivity.

    - Aspect Content eXchange: a B2B content publishing, discovery, and
      distribution platform which manages the digital catalog content required
      to enable transactions and decision support for B2B

                                       20
<PAGE>
      eCommerce. Aspect Content eXchange integrates with leading B2B eCommerce
      platforms including those provided by Ariba ORMS, Commerce One, i2
      TradeMatrix, Oracle and SAP. Also Aspect Content eXchange integrates with
      Aspect Development and Sourcing Enterprise solutions to increase the value
      delivered to Aspect's current customer base and leverage the exchange.

ASPECT CONTENT

    Aspect's Enterprise and eXchange solutions enable companies to make better
choices about what parts, components and materials to use in production, what
MRO and office supplies to use in daily operations, and which suppliers to buy
from. However, to optimize these choices, companies must have comprehensive and
comparable content data on products and suppliers.

    The Aspect Content eXchange platform allows sellers to publish their content
once and make it available to multiple buyers on multiple trade exchanges.
Aspect's custom content services enable buying organizations to create catalogs
of "preferred" products and suppliers for use across their company. Finally,
Aspect's eContent reference databases provide information on over 17 million
items from thousands of suppliers worldwide.

    Aspect's family of reference databases provides regularly updated
information for components and supplies, component life cycle data, commodity
suppliers, and indirect goods such as mission-critical MRO, plant equipment,
office supplies and computer equipment. Aspect currently maintains information
on more than 17 million products used by businesses today, and is aggressively
expanding those databases through a variety of means, including direct sourcing
from suppliers, searching from supplier sites, content acquisition, and the
latest addition, Aspect's Content Network that enables suppliers to update
information directly.

    ELECTRONIC PARTS REFERENCE DATABASES.  Aspect's VIP (Very Important Parts)
database contains over 9 million electronic, electro-mechanical and mechanical
components available from more than 1000 manufacturers. The VIP reference
databases include an index of search and select parameters that enables rapid
component search, comparison and selection based on form, fit and function and
other technical characteristics, as well as electronic versions of databooks and
datasheets. VIP component reference databases provide broad, industry-wide
coverage of component manufacturers, enabling users to rapidly access
standardized component information at their desktops instead of searching
manually through many different and often inconsistent paper databooks or web
sites, or receiving information from one manufacturer at a time. The VIP
component reference databases are organized by major device group, including
integrated circuits and discrete semiconductors, passive components, and
electromechanical components. Aspect updates its VIP component reference
databases daily and maintains the data on its content web site, AspectWeb-TM-.

    The VIP family of VIP component reference databases includes the following
individual databases:

    - VIP IC AND DISCRETE SEMICONDUCTORS REFERENCE DATABASE: includes memory,
      programmable logic, digital logic, microprocessor, analog, interface,
      telecom/datacom, consumer, transistor, diode, transformer and trigger
      devices, as well as opto-electronic devices and accessories and RF/
      Microwave components and modules.

    - VIP PASSIVES REFERENCE DATABASE: includes capacitor, resistor, inductor
      and transformer components.

    - VIP ELECTRO-MECHANICAL REFERENCE DATABASE: includes connectors, relays,
      and switches.

    - VIP MILITARY SPECIFICATIONS DATABASE: includes military characteristics
      and specifications for military-rated integrated circuit and discrete
      semiconductor components, as well as electronic specification drawings for
      passives, electromechanical and mechanical devices.

                                       21
<PAGE>
    LCM DATABASES.  Aspect's Life Cycle Management (LCM) product is a reference
database that provides a repository of component life cycle information
identifying existing obsolete and active components as well as daily
notification and alerts for recently obsoleted components. The database also
includes prediction information on components by estimating the number of years
to end of life. The database can be established to track customer-specific
components with alerts for pending obsolescence of affected parts.

    VIS DATABASES.  Aspect's Very Important Supplier (VIS) databases include
supplier information on millions of suppliers. The database is built using
multiple data sources. The Supplier Reference databases provide such information
as contact information, company lineage (headquarter, domestic ultimate, global
ultimate), demographics, supplier risk information and commodity identification
for products and services each supplier provides.

    MRO REFERENCE DATABASES.  Aspect has two Maintenance and Repair Operations
(MRO) Reference databases, including MRO-Operations, and MRO-Business
Essentials. Aspect's MRO-Operations Reference database contains information on
products from over 5,000 suppliers of operational management items, such as
pipes, valves, fittings, solvents, cleansers, repair items and hardware. Aspect
is sourcing data for MRO-Operations from a variety of suppliers and publishers.
MRO-Business Essentials contains standardized, organized information on over 95%
of all commercially available office products. Manufacturer part numbers are
cross-referenced to the part numbers used by the major suppliers of office
products. MRO-Business Essentials provides standardized information on major
commercial computer and office products and supplies, and is cross-referenced to
part numbers used by the major suppliers. Information on office products in
MRO-Business Essentials spans all standard office products and major office
products distributors. MRO-Business Essentials also contains information on
computer equipment, peripherals, and related supplies.

    PREFERRED CATALOGS.  Tailored reference databases for commercial
off-the-shelf parts can be implemented in the form of a preferred catalog for
customers, where a unique catalog is created reflecting the parts, commodities
and suppliers that are preferred by each customer. The resulting catalogs are
used by engineering for product development, by procurement for commodity
management, and by manufacturing/ operations to support such functions as
requisitioning and plant maintenance. In cases where customers have unique or
proprietary parts or specific suppliers to be cataloged, Aspect uses its
powerful expertise in collecting, cleansing, migrating, enriching and publishing
a variation of Preferred Catalogs called a Design Encyclopedia to contain the
required custom parts, designs, assemblies or equipment spares information. This
same preference management is used by Aspect's eXchange solution to enable
Internet exchanges to offer customized views of content on the portal site.

    ASPECT STANDARD CLASSIFICATION SCHEME.  All of Aspect's reference databases
utilize Aspect's Standard Classification Scheme (analogous to a table of
contents for products used by an industry), which defines the classification
structure in which the part classes reside and the standard definitions of the
search parameters, including names, descriptions, units of measure, allowable
values and other criteria. Usage of this standard enables rapid search for
needed products across disparate suppliers, automated RFP (request for proposal)
and RFQ (request for quote) management, and spend aggregation.

ASPECT SERVICES

    Aspect provides professional consulting and content services for its
customers. Aspect is a leader in e-commerce content services, which typically
include such tasks as legacy data migration, cleansing, and standardization and
enrichment of existing customer and supplier data, as well the development of
electronic catalogs. Aspect's business process services often partner with other
professional consulting firms to assist the customer in implementing best
practices for enterprise collaboration, inbound supply chain consolidation,
design re-use and strategic sourcing, strategic product development and
strategic plant management.

                                       22
<PAGE>
CUSTOMER SERVICE AND SUPPORT

    Aspect's customer service and support organization provides customers with
technical support, training, consulting and implementation services. All of
Aspect's current customers have software maintenance agreements with Aspect
provide for one or more of the following services:

    CUSTOMER EDUCATION AND TRAINING.  Aspect offers training courses designed to
meet the needs of end users, data modeling, knowledge, and integration experts
and system administrators. Aspect also trains customer personnel who in turn
train end users in large global enterprise deployments. Training classes are
provided at Aspect's offices in Mountain View, California; Boston,
Massachusetts; London, England; Tokyo, Japan; and Bangalore, India. Aspect
provides on-site training services upon request by customers at a higher cost.
Fees for education and training services are in addition to and separate from
the fees for software and content products and are typically charged either per
student per class, or on a per diem basis.

    SOFTWARE MAINTENANCE AND SUPPORT.  Aspect offers telephone, e-mail and
facsimile customer support through its central technical support staff at
Aspect's headquarters and regional support centers in North America, Europe, and
Asia. Aspect also provides customers with product documentation, release notes,
and on-line help that describe features in new products, known problems and
workarounds, and application notes. Software product license fees do not cover
maintenance. Each customer is entitled to receive certain software updates,
maintenance releases and technical support for an annual fee based on a
percentage of the price of the products under license to such customers. The
annual subscription service fee for Aspect's content products covers all data
updates and maintenance on an ongoing basis for the term of the subscription.

INFINITE SUPPLY

    Infinite Supply (IS) is a startup company launched by Aspect in the third
quarter of 1999. IS's mission is to be a leading global commerce services
provider, providing content and application software services for B2B portals,
marketplaces and exchanges. By acting as a content and commerce infrastructure
conduit between buyers and suppliers, IS becomes a "portal behind the
portal"--showcasing the world's largest e-catalog with 10 million of the most
purchased components from the top 6,500 manufacturers, in addition to direct
material and custom e-catalogs.

    The IS infrastructure provides B2B connectivity between buyers and
suppliers, via a host of B2B and data content management services, for any
front-end customer facing vertical market portal.

    One of the key components of this functionality is Aspect's search engine
EXplore.net. It not only allows buyers to search in all industry-accepted ways
(part name, part number, by distributor, etc.), but it also breaks down the
search results into categories (by product, by distributor, etc.). This allows
buyers to pinpoint the exact products they want more easily and efficiently.

SALES AND MARKETING

    Aspect markets and sells its products and services primarily through a
direct sales force based in Mountain View, California and in field sales offices
in the North American metropolitan areas of Atlanta, Boston, Chicago, Cleveland,
Dallas, Denver, Detroit, Houston, Indianapolis, Los Angeles, Minneapolis,
Montreal, Naples, Nashua, Philadelphia, Toronto, and Washington D.C., and abroad
in Zurich, London, Paris, Munich, Tokyo and Bangalore, India. As of
December 31, 1999 Aspect's sales and marketing organization consisted of 304
employees. To support its sales force, Aspect conducts a number of marketing
programs, which include public relations, advertising, senior executive industry
conference events, telemarketing, seminars, direct mail, trade shows and
customer advisory board meetings. Aspect's sales team includes persons
performing strategic account management, applications, and consulting and
business development roles. Aspect also has worldwide strategic reselling
agreements with i2 Technologies,

                                       23
<PAGE>
SAP, and Commerce One, a joint marketing and systems integrator agreement with
Nihon Unisys, Ltd. (NUL) in Japan, and a sales representative agreement in South
Korea with Advanced Technology of Engineering Systems Co., Ltd. (ATE).

    Aspect's near-term strategy is to continue its rapid expansion into the
Internet Exchange market, leveraging its knowledge and expertise in
collaborative commerce solutions for the enterprise. Aspect has organized its
sales force to target companies in the leading vertical markets including the
leading companies in the high tech, industrial, aerospace & defense, energy,
chemical, pharmaceutical, consumer packaged goods and related industries, and to
explore additional sales opportunities among its current customer base. The
direct sales force is responsible for joint sales efforts and management of
multiple channels. The 1999 geographic sales breakdown was (in thousands): North
America $84,324 or 88.6%, Europe $8,477 or 8.9% and Asia $2,344 or 2.5% for a
total of $95,145.

    International sales accounted for 11.4%, 12.9%, and 17.0% of total revenues
in 1999, 1998, and 1997 respectively. In addition, although Aspect records
revenues based on the billing location, certain domestic billings include
licenses that may be deployed by customers or resold through indirect channels
into international locations. Aspect has invested over the last year in
increasing its presence in the European and Asian markets, and intends to
continue to expand its direct sales and marketing activities worldwide, which
will require significant management attention and financial resources.

    Aspect has committed, and continues to commit, significant time and
financial resources to developing international sales and support channels.
There are a number of risks inherent in Aspect's international business
activities, including unexpected changes in regulatory requirements, tariffs and
other trade barriers, costs and risks of localizing products for foreign
countries, longer accounts receivable payment cycles, potentially adverse tax
consequences, currency fluctuations, repatriation of earnings and the burdens of
complying with a wide variety of foreign laws. In addition, revenues of Aspect
earned in various countries where Aspect does business may be subject to
taxation by more than one jurisdiction, thereby adversely affecting Aspect's
earnings. There can be no assurance that such factors will not have an adverse
effect on the revenues from Aspect's future international sales and,
consequently, Aspect's business, financial condition or results of operations.

    Aspect generally ships its products within a short period of time after
execution of a license. As a result, Aspect typically does not have a material
backlog of unfilled license orders at any given time, and Aspect does not
consider backlog to be a meaningful indicator of future performance.

STRATEGIC ALLIANCE PARTNERS

    Aspect believes that in order to provide comprehensive B2B e-commerce
solutions, it will be necessary to develop, maintain and enhance close alliances
with vendors of software, and professional services. In addition to the
strategic reselling agreements with i2 Technologies, Ariba and Commerce One,
Aspect has established marketing, integration and strategic alliances with a
number of major vendors, including IBM, HP, EDTN, Arrow Electronics, Dun &
Bradstreet, SDRC/Metaphase Technology, Inc., Oracle, as well as relationships
with a number of the leading consulting groups.

RESEARCH AND DEVELOPMENT

    Aspect has committed, and expects to continue to commit in the future,
substantial resources to product development. Research and development efforts
are directed at increasing product functionality and solution modules, improving
product performance and expanding the capabilities of the products to
interoperate with third-party software. Aspect originally introduced its CIS
software in 1992 and introduced commercial availability of the next generation
Explore client/server software and its VIP content databases in 1995. Aspect has
regularly released new products and enhancements to existing products. Although
Aspect expects that certain of its new products will be developed internally,
Aspect may, based on timing and cost considerations, acquire technology and
products from third parties.

                                       24
<PAGE>
    Aspect supplements its product development efforts by reviewing customer
feedback on existing products and working with customers and potential customers
to anticipate future functionality requirements. To assist this effort, Aspect
hosts a customer advisory board made up of representatives from many of its key
customers, which meets periodically to provide feedback to Aspect's current and
future product plans.

    Aspect's future success will depend in part upon its ability to enhance its
current products and to develop and introduce new products on a timely basis
that keeps pace with technological developments, emerging industry standards and
the increasingly sophisticated needs of its customers. There can be no assurance
that Aspect will be successful in developing or marketing product enhancements
or new products that respond to technological change or evolving industry
standards, that Aspect will not experience difficulties that could delay or
prevent the successful development, introduction and marketing of these products
or that its new products or product enhancements will adequately meet the
requirements of the marketplace and achieve market acceptance. If Aspect is
unable, for technological or other reasons, to develop and introduce new
products or enhancements, Aspect's business, financial condition and results of
operations could be materially adversely affected.

    In addition, applications software and content products as complex as those
offered by Aspect frequently contain undetected errors or failures when first
introduced or when new versions are released. Aspect has in the past discovered
software and data errors in certain of its products and enhancements, both
before and after initial shipments, and has experienced delays or lost revenues
during the period required to correct these errors. There can be no assurance
that, despite testing by Aspect and by current and potential customers, errors
will not occur in products, data or releases after commencement of commercial
shipments, resulting in loss of or delay in market acceptance, which could have
a material adverse effect upon Aspect's business, financial condition and
results of operations.

    As of December 31, 1999, Aspect's research and development organization
consisted of 457 full time employees, 329 of whom are employed by Aspect's
facility at Bangalore, India. During 1999, 1998 and 1997, research and
development expenses were approximately $20.1 million, $15.9 million, and
$11.2 million, respectively.

COMPETITION

    The market for Aspect's products is competitive, subject to rapid change and
significantly affected by new product introductions and other market activities
of industry participants. Aspect's products are targeted at the emerging market
for open, client/server software, content databases and services solutions, and
many of Aspect's competitors offer software or content to address this market.
Among Aspect's principal competitors is Parametric Technology Corporation (PTC),
which has expanded its product vision to include Component and Supplier
Management (CSM). Further, Aspect currently faces indirect competition from
third-party professional service organizations and internal information systems
and computer-aided design departments of potential customers that develop custom
internal software.

    In the future, because there are relatively low barriers to entry in the
software industry, Aspect could experience additional competition from other
established or emerging companies as the Internet application software market
continues to develop and expand. In particular, ERP vendors, PDM vendors, Supply
Chain Management vendors or professional service providers may enter Aspect's
market with competitive products. As Aspect expands into Internet-based or other
forms of product delivery, it may encounter additional competition from its
existing competitors and other established or emerging companies. While Aspect
believes that it has a significant market advantage with its combination of
software, content and services, with the compilation of content and a
significant barrier to entry, there can be no guarantee of future success. Many
of these potential competitors have well-established relationships with Aspect's
current and potential customers, have extensive knowledge of Internet
technology, better name recognition and significantly greater financial,
technical, sales, marketing and other resources and are capable of

                                       25
<PAGE>
offering single vendor solutions which span multiple industries. It is also
possible that new competitors or alliances among competitors may emerge and
rapidly acquire significant market share. Aspect also expects that competition
will increase as a result of software industry consolidations. Aspect's
competitors may be able to respond more quickly to new or emerging technologies
and changes in customer requirements, or to devote greater resources to the
development, promotion and sale of their products.

    Increased competition may result in price reductions, reduced gross margins
and loss of market share, any of which could materially adversely affect
Aspect's business, financial condition or results of operations. There can be no
assurance that Aspect will be able to compete successfully against current or
future competitors or that competitive pressures will not materially adversely
affect its business, financial condition or results of operations.

    Aspect believes that, to compete effectively, it must continue to provide
comprehensive software and integrated content products, openness, scalability,
ability to integrate with third-party products, functionality, adaptability,
ease of use, product reputation, quality, performance, price, customer service
and support, effectiveness of sales and marketing efforts and company
reputation. Although Aspect believes that it currently competes favorably with
respect to such factors, there can be no assurance that Aspect can maintain its
competitive position against current and potential competitors, especially those
with greater financial, marketing, service, support, technical and other
resources than Aspect.

PROPRIETARY RIGHTS AND LICENSING

    Aspect's success is heavily dependent upon proprietary technology. Aspect
relies primarily on a combination of copyright and trademark laws, trade
secrets, confidentiality procedures and contractual provisions with its
employees, consultants and business partners and in its license agreements to
protect its proprietary rights. Aspect currently owns three patents for object
technology use for parametric searching, concurrency and internationalization in
an object data model. Aspect seeks to protect its software, published data,
documentation and other written materials under trade secret and copyright laws,
which afford only limited protection. Despite Aspect's efforts to protect its
proprietary rights, unauthorized parties may attempt to copy aspects of Aspect's
product or to obtain and use information that Aspect regards as proprietary.
While Aspect is not aware that any of its products infringes the proprietary
rights of third parties, there can be no assurance that third parties will not
claim infringement by Aspect with respect to current or future products.

    In addition, Aspect relies on certain software and data that it licenses
from third parties, including software and data that are used in Aspect's
products to perform certain functions. There can be no assurance that such firms
will remain in business, that they will continue to support their products or
that their products will otherwise continue to be available to Aspect on
commercially reasonable terms. Aspect believes that substantially all of the
software it licenses is available from vendors other than Aspect's current
vendors and could be replaced with equivalent software in a timely manner.
However, it is possible that the loss of or inability to maintain any of these
software licenses could result in delays or cancellations in product shipments
until equivalent software can be identified and licensed or developed and
integrated with Aspect's products. Any such delay or cancellation could
materially adversely affect Aspect's business, financial condition or results of
operations.

    Aspect's products are generally provided to customers in object code format
only. From time to time, in limited circumstances, Aspect has licensed source
code format subject to customary protections such as use restrictions and
confidentiality agreements. In addition, certain customers have entered into
source code escrow arrangements with Aspect, pursuant to which Aspect's source
code could be released to the customer upon the occurrence of certain events,
such as certain material breaches of the agreement. In the event of any such
release of source code from escrow, the customer's license is generally limited
to use of the source code to maintain, support and configure Aspect's software
products.

                                       26
<PAGE>
EMPLOYEES

    As of December 31, 1999, Aspect employed 837 persons, of whom 382 were based
in the United States and 455 were based in India and other foreign countries. Of
the total, 304 were engaged in sales and marketing, 457 in product development
and technical support, and 71 in finance and administration. None of Aspect's
employees is represented by a labor union with respect to his or her employment
by Aspect. Aspect has experienced no organized work stoppages and believes its
relationships with its employees are good. Aspect believes that its future
success will also depend to a significant extent upon its ability to attract,
train and retain highly skilled technical, management, sales, marketing and
consulting personnel. Competition for such personnel in the computer software
industry in both the United States and India is intense. Aspect has, from time
to time, experienced difficulty in locating candidates with appropriate
qualifications. There can be no assurance that Aspect will be successful in
attracting or retaining such personnel and the failure to attract or retain such
personnel could have a material adverse effect on Aspect's business or results
of operations.

PROPERTIES

    Aspect's principal administrative, sales, marketing, support and software
research and development facility is located in approximately 64,000 square feet
of space in Mountain View, California. This facility is leased to Aspect through
May 2004. Aspect also leases facilities of approximately 25,000 square feet of
space in Nashua, New Hampshire and approximately 53,000 square feet of space in
three locations in Bangalore, India. The Nashua facility is leased to Aspect
through August 2002. The Bangalore facilities are occupied under leases, which
expire in 2000 through 2007. In addition, Aspect maintains sales and support
offices in the metropolitan areas of Atlanta, Boston, Boulder, Chicago,
Cleveland, Dallas, Detroit, Houston, Indianapolis, Los Angeles, Minneapolis,
Montreal, Naples, Philadelphia, Toronto, Washington D.C., London, Munich, Paris,
and Tokyo. Aspect believes that its current facilities are adequate for its
needs through the end of 2000, and that, should it be needed, suitable
additional or alternative space will be available in the future on commercially
reasonable terms.

LEGAL PROCEEDINGS

    In the ordinary course of business, Aspect may be involved in legal
proceedings. As of the date hereof, to Aspect's knowledge there are no material
proceedings in which Aspect is involved or litigation pending against Aspect.

                                       27
<PAGE>
                   THE SPECIAL MEETING OF THE STOCKHOLDERS OF
                TRANSITION ANALYSIS COMPONENT TECHNOLOGY, INC.:
                  DATE, TIME AND PLACE OF THE SPECIAL MEETING

    TACTech will hold the special meeting at [8:00] a.m., local time, on
[APRIL 20], 2000, at the [Westchester Marriott Hotel, 670 White Plains Road,
Tarrytown, New York 10591.] You are being furnished with a copy of this proxy
statement/prospectus and a proxy card so that you can vote your shares even if
you do not attend the special meeting.

MATTERS TO BE CONSIDERED AT THE SPECIAL MEETING

    At the special meeting, TACTech stockholders will:

    1.  Vote on the approval of the merger agreement; and

    2.  Transact such other business as may properly come before the meeting or
       any adjournment thereof.

VOTING AT THE SPECIAL MEETING; RECORD DATE; QUORUM

    The TACTech board of directors has fixed the close of business on
[MARCH 20], 2000 as the record date for the determination of stockholders of
TACTech entitled to notice of and to vote at the special meeting and at any
adjournment or postponement thereof. Only holders of record on the record date
will be entitled to vote at the special meeting. As of March 28, 2000, TACTech
had 598,734 shares of common stock outstanding. In connection with the special
meeting please note the following:

    - each stockholder of record of common stock on [MARCH 20], 2000 is entitled
      to cast one vote per common share;

    - stockholders may vote their shares at the special meeting either in person
      or by proxy; a proxy may be revoked at any time prior to its use at the
      meeting by filing with the Secretary of TACTech an instrument revoking it,
      by a duly elected proxy bearing a later date or by attending the special
      meeting and voting in person;

    - the presence, in person or by proxy, of the holders of one-third of the
      common stock of TACTech entitled to vote at the special meeting is
      necessary to constitute a quorum at the special meeting. The holders of
      more than a majority of the common stock of TACTech have, pursuant to the
      merger agreement, already granted their proxy to Aspect, and consequently,
      a quorum will be present at the special meeting. Under Delaware state law
      and the Certificate of Incorporation and By-laws of TACTech, for purposes
      of determining whether a quorum is present, abstentions will be counted
      and broker non-votes will not be counted; and

    - the merger agreement must be adopted by the affirmative vote of the
      holders of two-thirds of the shares of TACTech common stock entitled to
      vote.

PROXIES

    WHO IS SOLICITING PROXIES?  TACTech is furnishing you with this proxy
statement/prospectus in connection with the solicitation of proxies by and on
behalf of the TACTech board of directors for use at the special meeting.

    HOW WILL THE PROXIES BE VOTED?  Proxies in the form enclosed, which are
properly executed and returned and not subsequently revoked, will be voted at
the special meeting. These proxies will be voted in accordance with the
directions specified on the proxies. If no directions are indicated on a
properly executed proxy, such proxy will be voted for approval of the merger
agreement.

                                       28
<PAGE>
    If any other matters are properly presented at the special meeting for
consideration, the persons named in the enclosed forms of proxy will have
discretion to vote on such matters in accordance with their best judgment.

    HOW DO I REVOKE MY PROXY?  The grant of a proxy on the enclosed form does
not preclude you from attending the special meeting and voting in person. You
may revoke a proxy at any time before it is voted by:

    - delivering, as indicated below, a written notice of revocation bearing a
      later date than the proxy before the vote is taken at the special meeting

    - duly executing a later-dated proxy relating to the same shares of TACTech
      common stock and delivering it as indicated below before the vote is taken
      at the special meeting

    - attending the special meeting and voting in person

    Attendance at the special meeting will not in and of itself constitute a
revocation of a proxy. Any written notice of revocation or subsequent proxy must
be delivered to TACTech, ATTN: Deborah J. Schrader, Secretary, before the vote
is taken at the special meeting.

    WHO IS PAYING FOR THE SOLICITATION?  TACTech will bear all expenses of the
solicitation of proxies for the special meeting. In addition to solicitation by
use of the mails, proxies may be solicited from stockholders by TACTech
directors, officers and employees. Solicitation may take place in person or by
telephone, facsimile or other means of communication. Such directors, officers
and employees will not be additionally compensated, but may be reimbursed for
reasonable out-of-pocket expenses in connection with such solicitation.

    HOW ARE ABSTENTIONS TREATED?  Abstentions will be tabulated separately and
will be counted as present at the meeting for purposes of determining whether a
quorum is present at the special meeting. Because the merger agreement requires
the approval of the holders of at least two-thirds of the outstanding shares of
TACTech common stock, abstentions will have the effect of votes against approval
of the merger agreement.

                                   THE MERGER

    At the special meeting, you will be asked to approve the merger agreement,
in which a wholly-owned subsidiary of Aspect will merge with and into TACTech.
As a result of the merger, TACTech will become a wholly-owned subsidiary of
Aspect. TACTech's and Aspect's board of directors have each unanimously approved
the merger agreement. The merger agreement is attached as Annex A to this proxy
statement/ prospectus and incorporated herein by reference.

BACKGROUND OF THE MERGER

    At various times near the end of the 1999 fiscal year and for a few months
thereafter, TACTech and Aspect had been engaged in substantive discussions
concerning a possible merger. As then contemplated, the stockholders of TACTech
would have received a combination of cash and shares of common stock of Aspect
having an aggregate value of approximately $21 per TACTech share. Late in the
summer of 1999, negotiations relating to the possible merger were terminated
after:

    - TACTech's controlling stockholders advised the TACTech board of directors
      that they would not agree to the contemplated transaction; and

                                       29
<PAGE>
    - the TACTech board of directors determined that:

       - volatility in the market price of Aspect's shares since the inception
         of the negotiations could jeopardize the value the board of directors
         had originally hoped the TACTech stockholders would receive; and

       - greater stockholder values could be generated if TACTech remained
         independent and proceeded to develop its long-term strategic plan,
         particularly in light of what were then new market opportunities
         presented by TACTech's expanded focus and a potential relationship with
         SAP A.G. (SAP), and its other World Wide Web portal development
         partners. SAP is a large international enterprise resource planning
         firm.

    Following termination of merger discussions with Aspect, TACTech's
management explored available options to raise the capital it concluded was
necessary to implement its long-term strategic plan, which included the
development of new functionality to enable World Wide Web-based customer inquiry
and reporting. TACTech also evaluated its personnel and senior management needs
in light of the expansion of its anticipated products and services and the
desire to market its services on an enterprise-wide basis, rather than at the
smaller, project-team level.

    During the summer of 1999, TACTech engaged the services of a financial and
strategic consultant to assist in exploring financing alternatives and market
opportunities. It also, at this time, committed financial and personnel
resources to SAP's incipient business-to-business World Wide Web initiative,
called mySAP.com, and explored the strategic value of expanding that
relationship.

    In order to raise the capital it thought it would need to complete necessary
product development, train sales personnel in new techniques to reach the
enterprise market and to procure necessary senior management, the board of
directors of TACTech determined to offer to its existing stockholders the right
to subscribe to purchase additional shares of common stock having an aggregate
price of approximately $2.5 million. A registration statement on Form S-3 was
filed with the commission for this purpose on October 26, 1999.

    Before the registration statement was declared effective and before an
offering was made to TACTech's stockholders, discussions resumed between Aspect
and TACTech which, on January 17, 2000, resulted in execution of the merger
agreement and withdrawal of the registration statement.

    On January 16, 2000, the TACTech board of directors considered the principal
terms of the merger agreement and related documentation. The TACTech board of
directors concluded that the merger presented a significant opportunity for
TACTech's stockholders. It unanimously approved the merger and merger agreement
and voted to recommend unanimously that the TACTech stockholders vote in favor
of the merger. In reaching its decision, the TACTech board of directors
considered that, under the terms of the merger agreement, the consideration to
be received by the stockholders of TACTech would consist solely of common stock
of Aspect, rather than a combination of stock and cash, that such a structure
would have tax advantages for stockholders and that the aggregate price to be
paid by Aspect would be approximately $3 per TACTech share (based on an Aspect
per share price of approximately $35 at the time) higher than under the
transaction which had been contemplated at the time the negotiations were
terminated during the summer of 1999. The TACTech board of directors also
considered that the market price of Aspect's common stock had increased markedly
since that time, a factor it considered to be both favorable and unfavorable.

FOR THE REASONS SET FORTH ABOVE AND ELSEWHERE IN THIS PROXY STATEMENT /
PROSPECTUS, THE TACTECH BOARD OF DIRECTORS RECOMMENDS THAT STOCKHOLDERS VOTE FOR
APPROVAL OF THE MERGER AGREEMENT.

                                       30
<PAGE>
TACTECH'S REASONS FOR THE MERGER

    TACTech's board of directors has determined that the terms of the merger and
the merger agreement are fair to, and in the best interests of, TACTech and its
stockholders. Accordingly, TACTech's board of directors has unanimously approved
the merger agreement and the consummation of the merger and recommends that you
vote for approval of the merger agreement and the merger.

    TACTech's board of directors consulted with its senior management, legal
counsel, and financial advisers in reaching its decision to approve the merger.
Among the factors considered by TACTech's board of directors in its
deliberations were the following:

    - historical information concerning Aspect's financial performance, results
      of operations, assets, liabilities, operations, technology, management and
      competitive position. This information included public reports of Aspect
      covering the most recent fiscal year and fiscal quarter;

    - management's view of the financial condition, results of operations,
      assets, liabilities, businesses and prospects of Aspect and TACTech after
      giving effect to the merger;

    - current market conditions and historical trading information with respect
      to Aspect common stock;

    - the board of director's and management's evaluations of TACTech's short
      and long term capital needs to develop its product and service offerings,
      and to expand into new markets in the absence of the merger, including the
      availability, or lack thereof, of cost-effective sources of such capital;

    - the board of director's and management's evaluations of TACTech's
      personnel and senior management needs to implement its anticipated
      business development and growth requirements in the absence of the merger,
      including the cost to secure and retain such personnel and management;

    - the board of director's and management's review of industry and securities
      analysts' projections of the short and long term market for data analysis
      and delivery services of the type provided by TACTech;

    - the board of director's and management's review of industry and securities
      analysts' evaluations of the business prospects of Aspect;

    - management's evaluation of the competitive environment TACTech is
      currently facing and would likely face as it attempted to broaden its
      products and services and penetrate new market opportunities;

    - the valuation attributed to TACTech in the merger agreement, in
      combination with all of the terms and conditions of the merger agreement
      considered as a whole;

    - the stock market liquidity available to TACTech stockholders upon their
      receipt of Aspect common stock;

    - management's analysis of the trading history of TACTech's common stock
      since it became an independent company in 1997; and

    - TACTech's president's analysis of the possible synergies between TACTech's
      and Aspect's products and services, the opportunities for growth which
      TACTech's products and services provide to Aspect and the opportunities to
      develop new markets which Aspect's enterprise-based market approach
      provides for TACTech's products and services.

    TACTech's board of directors also considered the risks associated with the
potential merger, including that:

    - under the terms of the merger agreement, circumstances, including those
      which are beyond TACTech's control, could permit Aspect not to consummate
      the transaction. If the transaction is not

                                       31
<PAGE>
      consummated, TACTech could suffer serious harm in terms of its
      relationships with customers, suppliers and employees. Such circumstances
      include, among other things:

       - if TACTech experiences a specified decline in expected renewals of
         subscription agreements by its customers;

       - if TACTech suffers a loss in the fiscal quarter ended March 31, 2000,
         excluding certain costs and expenses; or

       - if TACTech suffers a reduction in net worth of more than $500,000 from
         its net worth at December 31, 1999, calculated without taking into
         account its operating results (including but not limited to normal
         amortization and depreciation) after such date;

    - whereas the share conversion ratio was fixed at the time of execution of
      the merger agreement based on the market price of Aspect's common stock at
      that time, a decline in the market price of Aspect's common stock prior to
      the consummation of the merger could reduce the value of the consideration
      which TACTech stockholders would receive; and

    - by receiving securities as the sole form of consideration, the value of
      the transaction to TACTech's stockholders would be subject to the
      fluctuations of the stock markets.

    After due consideration, the TACTech board of directors concluded that the
potential benefits of the proposed merger outweighed the possible risks and
after fully discussing these matters the TACTech board of directors determined
that Aspect's offer was justified and proceeded to approve the merger.

    The foregoing discussion of the information and factors considered by the
TACTech board of directors is not intended to be exhaustive but is believed to
include all material factors considered by the TACTech board of directors. In
view of the complexity and wide variety of information and factors, both
positive and negative, considered by the TACTech board of directors, it did not
find it practical to quantify, rank or otherwise assign relative or specific
weights to the factors considered. The TACTech board of directors also did not
reach any specific conclusion with respect to each of the factors considered, or
any aspect of any particular factor. Instead, the TACTech board of directors
conducted an overall analysis of the factors described above, including thorough
discussions with its management and legal and accounting advisors. In
considering the factors described above, individual members of the TACTech board
of directors may have weighed factors differently. The TACTech board of
directors considered all these factors as a whole and believes the factors
support its determination to approve the merger. Accordingly, the TACTech board
of directors believes the merger is fair to, and in the best interests of,
TACTech and its stockholders and that TACTech should proceed with the merger.

ASPECT'S REASONS FOR THE MERGER

    In reaching a unanimous decision to acquire TACTech, Aspect's board of
directors considered and reviewed with Aspect's management a number of factors,
including:

    - TACTech is the leading content provider for component life cycle data to
      over 100 military and industrial customers worldwide;

    - TACTech's content enables companies to optimize their product life cycles
      for maximum profitability and minimum risk;

    - Aspect is capable of continuing the development of TACTech content
      products and decision support tools under the direction of the Aspect
      content organization;

    - The combined workforces may provide seamless product and customer service
      integration for Aspect and TACTech customers;

                                       32
<PAGE>
    - Acquiring TACTech may broaden Aspect's product and technology offerings,
      and expand its sales organization and customer base;

    - Aspect and TACTech share a number of mutual customers in the high tech and
      aerospace and defense industries;

    - Aspect and TACTech products can be integrated as a joint offering for both
      overlapping and new customers;

    - The Aspect board of directors believes that the Aspect stock to be
      exchanged in the merger is a fair price in consideration of 100% of
      TACTech's outstanding shares; and

    - The Aspect board of directors believes that TACTech's stock is valued
      attractively relative to comparable companies in the industry, given the
      growth prospects in TACTech's underlying business.

    The Aspect board of directors also considered a number of potential negative
factors with respect to the merger, including, but not limited to:

    - The risk that the benefits sought to be achieved in the merger will not be
      achieved; and

    - Risks associated with the business of TACTech.

    The Aspect board of directors discussed with Aspect's management and outside
advisors the prospects for combinations with companies other than TACTech, the
possibility that the benefits described above or other benefits could be
achieved through any other combination, and the risks and benefits of continuing
to remain independent.

    This discussion of information and factors considered by the Aspect board of
directors is not intended to be exhaustive, but is believed to include certain
material factors considered by the Aspect board of directors. The Aspect board
of directors did not quantify or otherwise assign relative weight to the factors
considered.

FEDERAL INCOME TAX CONSIDERATIONS

    The following is a discussion of the material federal income tax
considerations of the merger that are generally applicable to holders of TACTech
common stock that exchange such stock for Aspect common stock in the merger. The
discussion is based on federal income tax law in effect as of the date of this
proxy statement/prospectus. These laws could change at any time, possibly with
retroactive effectiveness. Neither TACTech nor Aspect has requested or will
request a ruling from the Internal Revenue Service (IRS) with regard to any of
the tax consequences of the merger.

    It is the opinion of Cooley Godward LLP (Cooley Godward), counsel to Aspect,
and Morrison Cohen Singer & Weinstein, LLP (Morrison Cohen), counsel to TACTech,
that the merger will constitute a reorganization pursuant to Section 368(a) of
the Code. In addition, Aspect's obligation to consummate the merger is
conditioned on the receipt by Aspect of an opinion from Cooley Godward, and
TACTech's obligation to consummate the merger is conditioned on the receipt by
TACTech of an opinion from Morrison Cohen, in each case, confirming that the
merger will constitute a reorganization. Cooley Godward and Morrison Cohen have
advised Aspect and TACTech, respectively, that they currently expect to be able
to deliver such closing opinions. The tax opinions and closing opinions
(i) will not be binding on the IRS nor preclude the IRS from adopting a contrary
position, (ii) will be based on the assumptions discussed below, as well as
representations received from Aspect, Asta Merger Sub and TACTech, (iii) will
also be based on the assumption that the merger will be consummated in
accordance with the terms of the merger agreement and (iv) will be subject to
the limitations discussed below. The tax opinions and closing opinions assume
and are conditioned upon (i) the truth and accuracy of the statements,
covenants, representations and warranties contained in the merger agreement, in
the representations received from

                                       33
<PAGE>
Aspect, Asta Merger Sub and TACTech to support the tax opinions and closing
opinions and in all other instruments and documents related to the formation,
organization and operation of Aspect, Asta Merger Sub and TACTech examined by
and relied upon by Cooley Godward and Morrison Cohen in connection with the
merger; (ii) that original documents submitted to such counsel are authentic,
documents submitted to such counsel as copies conform to the original documents,
and that all such documents have been (or will be by the effective time) duly
and validly executed and delivered where due execution and delivery are a
prerequisite to the effectiveness thereof; (iii) that all covenants contained in
the merger agreement and in the tax representations are performed without waiver
or breach of any material provision thereof; and (iv) that any representation or
statement made "to the best of knowledge" or similarly qualified is correct
without such qualification.

    This discussion does not deal with all income tax considerations that may be
relevant to a particular TACTech stockholder in light of his personal investment
circumstances, and to certain types of stockholders subject to special treatment
under the federal income tax laws, such as stockholders who are dealers in
securities, foreign persons, banks, insurance companies or tax-exempt entities;
stockholders who acquired their shares in connection with a previous merger
involving TACTech or an affiliate; stockholders who hold their shares as part of
a hedging, straddle, conversion or other risk reduction transaction; or
stockholders who acquired their shares in connection with stock option plans,
stock purchase plans or other compensatory transactions. In addition, the
following discussion does not address the tax consequences of transactions
effectuated prior to or after the merger (whether or not such transactions are
in connection with the merger). Furthermore, no foreign, state or local tax
considerations are addressed in this proxy statement/ prospectus.

    There can be no assurance that the IRS will not take a contrary view to
those statements and conclusions expressed herein. Moreover, legislative,
judicial and administrative changes or interpretations may be forthcoming that
could alter or modify the statements and conclusions set forth herein. Any such
changes or interpretations may or may not be retroactive and could affect the
tax consequences to TACTech stockholders.

    Accordingly, you are urged to consult your own tax advisors as to the
specific tax consequences of the merger. This includes the applicable federal,
state, local and foreign tax consequences to you from the merger and applicable
tax return reporting requirements.

    Subject to the limitations and qualifications referred to herein and in the
tax opinions and closing opinions, it is the opinion of Cooley Godward and
Morrison Cohen that as a result of the merger's qualifying as a reorganization,
the following federal income tax consequences will result:

    1.  Both TACTech and Aspect will be parties to a reorganization within the
       meaning of Section 368(b) of the Code.

    2.  No gain or loss will be recognized by TACTech or Aspect solely by reason
       of such merger.

    3.  No gain or loss will be recognized by holders of TACTech common stock
       solely as a result of the exchange of such stock, pursuant to the merger
       agreement, for Aspect common stock, except that: a TACTech stockholder
       who receives cash in lieu of fractional shares will be treated as if such
       cash had been received in redemption for such fractional shares, such
       redemption being treated either as a sale or exchange resulting in
       capital gain or loss treatment, or, alternatively, as a dividend,
       depending upon each TACTech stockholder's particular facts and
       circumstances.

    4.  The aggregate tax basis of the Aspect common stock received in the
       merger (including any fractional shares of Aspect common stock not
       actually received) will be the same as the aggregate tax basis of the
       TACTech common stock surrendered in exchange therefor.

    5.  The holding period for the Aspect common stock received in the merger
       will include the period during which TACTech common stock surrendered in
       exchange therefor was held.

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<PAGE>
    If the merger were not to constitute a reorganization under
Section 368(a)(1) of the Code, then the TACTech stockholders would be treated as
if they had effected a taxable sale of their TACTech stock and, in general, each
would recognize taxable gain or loss equal to the difference between (i) the
fair market value of the Aspect common stock received in the merger, and
(ii) his basis in his TACTech common stock surrendered in the merger. The basis
in the Aspect common stock received in such case would be equal to its fair
market value on the date of the merger.

    Each TACTech stockholder will be required to retain records and file with
such holder's U.S. Federal income tax return a statement setting forth certain
facts pertaining to the merger.

ACCOUNTING TREATMENT

    The business combination will be accounted for as a purchase in accordance
with Generally Accepted Accounting Principles.

REGULATORY APPROVALS

    Aspect and TACTech are not required to notify the Federal Trade Commission
(FTC) or the Antitrust Division of the United States Department of Justice
(Antitrust Division) before completing the merger. However, the FTC or the
Antitrust Division has the authority to challenge the merger on antitrust
grounds before or after the merger is completed.

APPRAISAL RIGHTS

    Under the Delaware General Corporation Law (DGCL), notwithstanding the
approval of the merger by the holders of the requisite number of shares of
TACTech common stock, you are entitled to refuse the merger consideration to
which you would otherwise be entitled under the merger agreement and exercise
appraisal rights and obtain payment of the "fair value" for your shares under
the terms of the DGCL. In order to effectively exercise your appraisal rights,
you must satisfy each of the following primary requirements:

    - You must hold shares in TACTech as of the date you make your demand for
      appraisal rights and continue to hold shares in TACTech through the
      effective date of the merger

    - You must deliver to TACTech a written notice of your demand of payment of
      the fair value for your shares within 20 days of the mailing date of this
      proxy statement/prospectus

    - You must not have consented to the merger and the merger agreement

    If you fail to comply with any of the above conditions or otherwise fail to
comply with the requirements of Section 262 of the DGCL, you will have no
appraisal rights with respect to your shares. Additionally, and regardless of
whether you will ultimately have an opportunity to vote upon the prospective
Aspect merger with i2 Technologies, you will not have an opportunity to exercise
appraisal rights in connection with the i2 transaction.

    The determination of fair value takes into account all relevant factors, but
excludes any appreciation or depreciation in anticipation of the applicable
merger. The costs of the appraisal proceeding may be determined by the Delaware
Court of Chancery and allocated among the parties as the Delaware Court of
Chancery deems equitable under the circumstances. Upon your application for
appraisal, the Delaware Court of Chancery may order all or a portion of the
expenses incurred by you in connection with the appraisal proceeding, including,
without limitation, reasonable attorney's fees and the fees and expenses of
experts, to be charged pro rata against the value of all shares entitled to
appraisal. In the absence of a determination or assessment, you will bear your
own expenses.

    All written notices should be addressed to: Transition Analysis Component
Technology, Inc., 22687 Old Canal Road, Yorba Linda, California 92887-4608,
ATTN: Deborah J. Schrader, Secretary. All written

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<PAGE>
notices must be executed by, or with the consent of, the holder of record. The
notice must identify you and indicate your intention to demand payment of the
fair value for your shares. In the notice, your name should be stated as it
appears on your stock certificate(s). If your shares are owned of record in a
fiduciary capacity, such as by a trustee, guardian or custodian, your demand
must be executed by or for the fiduciary. If you own the shares with another
person, such as in a joint tenancy or tenancy in common, your demand must be
executed by or for all joint owners. An authorized agent, including an agent for
two or more joint owners, may execute your demand for appraisal. However, the
agent must identify you and any other owners of the shares and expressly
disclose the fact that, in exercising the demand, he or she is acting as agent
for you and any other owners.

    IF YOU ARE CONTEMPLATING THE EXERCISE OF THE RIGHTS SUMMARIZED ABOVE IN
CONNECTION WITH THE MERGER, YOU ARE URGED TO CONSULT WITH YOUR OWN LEGAL
COUNSEL. THE DESCRIPTION OF SECTION 262 CONTAINED IN THIS DOCUMENT IS QUALIFIED
IN ITS ENTIRETY BY REFERENCE TO ANNEX B ATTACHED TO THIS PROXY
STATEMENT/PROSPECTUS AND THE DGCL. FAILURE TO FOLLOW PRECISELY ALL OF THE STEPS
REQUIRED BY SECTION 262 OF THE DGCL WILL RESULT IN THE LOSS OF YOUR APPRAISAL
RIGHTS. ANY DEMANDS, NOTICES, CERTIFICATES OR OTHER DOCUMENTS REQUIRED TO BE
DELIVERED IN CONNECTION WITH YOUR EXERCISE OF APPRAISAL RIGHTS SHOULD BE SENT TO
TACTECH AT THE ADDRESS INDICATED ABOVE.

RESTRICTION ON RESALES OF ASPECT COMMON STOCK

    The Aspect common stock to be issued in the merger will have been registered
under the Securities Act, thereby allowing such shares to be freely traded
without restriction by all former holders of TACTech common stock who are not
"affiliates" of TACTech at the time of the special meeting and who do not become
"affiliates" of Aspect after the merger. Persons who may be deemed to be
affiliates of Aspect or TACTech generally include individuals or entities that
control, are controlled by, or are under common control with, such party and may
include certain officers and directors of Aspect and TACTech, as well as
significant stockholders.

    Shares of Aspect common stock received by those stockholders of TACTech who
are deemed to be affiliates of TACTech may be resold without registration under
the Securities Act only as permitted by Rule 145 under the Securities Act or as
otherwise permitted under the Securities Act.

    This proxy statement/prospectus does not cover resales of Aspect common
stock received by any person who may be deemed to be an affiliate of Aspect or
TACTech.

                                       36
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                              THE MERGER AGREEMENT

    The merger agreement contemplates the merger of Asta Merger Sub, a
wholly-owned subsidiary of Aspect, into TACTech, with TACTech thereby becoming a
wholly-owned subsidiary of Aspect. This section of the proxy
statement/prospectus describes the material provisions of the merger agreement.
Because the description of the merger agreement contained in this proxy
statement/prospectus is a summary, it does not contain all the information that
may be important to you. You should carefully read the entire copy of the merger
agreement attached as Annex A to this proxy statement/prospectus before you
decide how to vote.

CLOSING AND EFFECTIVE TIME OF THE MERGER

CLOSING

    The closing of the merger will take place no later than the 5th business day
after the date on which all closing conditions in sections 6 and 7 of the merger
agreement have been satisfied or waived. The closing is expected to take place
shortly after the approval of the merger by the TACTech stockholders.

EFFECTIVE TIME

    The merger will be effective upon the filing of a certificate of merger with
the Secretary of State of the State of Delaware. Aspect and TACTech anticipate
that such filing will be made simultaneously with, or as soon as practicable
after, the closing of the merger.

EXCHANGE OF STOCK CERTIFICATES

FRACTIONAL SHARES

    No fractional shares of Aspect common stock will be issued to any TACTech
stockholder in connection with the merger. Each TACTech stockholder who would
otherwise have been entitled to receive a fraction of a share of Aspect common
stock will receive cash, without interest, in an amount equal to the fractional
shares of Aspect common stock that such stockholders otherwise would be entitled
to receive.

EXCHANGE PROCEDURES

    As soon as reasonably practicable after the effective time of the merger,
transmittal forms and exchange instructions will be mailed to each holder of
record of TACTech common stock to be used to surrender and exchange certificates
formerly evidencing shares of TACTech common stock for certificates evidencing
the shares of Aspect common stock and any other distributions and cash in lieu
of fractional shares to which such holder has become entitled. After receiving
such transmittal forms, each holder of certificates formerly representing
TACTech common stock will be able to surrender such certificates to the exchange
agent, such certificates shall be cancelled, and each such holder will receive
in exchange therefor certificates evidencing ninety-five percent (95%) of the
number of whole shares of Aspect common stock to which such holder is entitled,
any cash which may be payable in lieu of a fractional share of Aspect common
stock and any dividends or other distributions with respect to Aspect common
stock with a record date at or after the effective time of the merger. The
remaining five percent (5%) of the number of whole shares of Aspect common stock
to which such holder is entitled will be placed in a holdback fund to satisfy
the indemnity obligations of the holders of TACTech common stock under the
merger agreement.

DIVIDENDS AND DISTRIBUTIONS

    No dividends or other distributions in respect of the Aspect common stock
shall be paid to any holder of any unsurrendered certificate formerly
representing TACTech common stock until the certificate is surrendered for
exchange.

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<PAGE>
EXCHANGE OF TACTECH OPTIONS

    At the effective time, each outstanding TACTech stock option shall be
converted into and become rights with respect to Aspect common stock and Aspect
shall assume each such TACTech option in accordance with the terms of the
TACTech option and any relevant stock option agreement or plan. Each TACTech
option assumed by Aspect may be exercised solely for shares of Aspect common
stock. The number of shares of Aspect common stock subject to each such TACTech
option shall be equal to the number of shares of TACTech common stock subject to
such TACTech option immediately prior to the effective time multiplied by the
exchange ratio, rounded down to the nearest whole share. The per share exercise
price under each such TACTech option shall be adjusted by dividing the per share
exercise price under such TACTech option by the exchange ratio and rounding up
to the nearest cent. And any restriction on the exercise of any such TACTech
option shall continue in full force and effect and the term, exercisability,
vesting schedule and other provisions of such TACTech option shall otherwise
remain unchanged.

REPRESENTATIONS AND WARRANTIES

    The merger agreement contains customary representations and warranties of
TACTech and Aspect relating to, among other things, certain aspects of the
respective businesses and assets of the parties and other matters. The
representations and warranties of TACTech expire on the first anniversary of the
closing date.

COVENANTS; CONDUCT OF THE BUSINESSES PRIOR TO THE MERGER

COVENANTS OF TACTECH

    Pursuant to the merger agreement, TACTech has agreed that prior to the
effective time of the merger it will:

    - subject to certain exceptions, provide Aspect with reasonable access to
      its books, records, tax returns and other documents;

    - carry out its business in the ordinary and usual course, and will use all
      reasonable efforts to preserve its business organization intact and
      maintain its existing relations and goodwill with customers, suppliers,
      and other business relationships;

    - promptly notify Aspect in writing of the discovery of any event,
      condition, fact or circumstance that constitutes a material inaccuracy in
      any representation or warranty made by TACTech;

    - not sell, issue, grant or authorize the issuance or grant of any capital
      stock or other security, except that (1) it may issue shares of common
      stock upon the exercise of options outstanding as of the date of the
      merger agreement or pursuant to certain existing contractual obligations
      and (2) it may, in the ordinary course and with the approval of Aspect,
      grant options under its stock option plans to its employees;

    - not amend or waive any of its rights under, or accelerate the vesting
      under, any provision of any of its stock option plans, stock option
      agreements or restricted stock purchase agreements, or otherwise modify
      any of the terms of any outstanding option, warrant or other security or
      any related contract;

    - not amend or permit the adoption of any amendment to its certificate of
      incorporation or bylaws or other organizational documents, or effect or
      become a party to any merger, consolidation, amalgamation, share exchange,
      business combination, recapitalization, reclassification of shares, stock
      split, division or subdivision of shares, reverse stock split,
      consolidation of shares or similar transaction;

                                       38
<PAGE>
    - not form any subsidiary or acquire any equity interest or other interest
      in any other entity;

    - not make any capital expenditure in excess of $125,000 in the aggregate;

    - not enter into or become bound by, or permit any of the assets owned or
      used by it to become bound by, any material contract, or amend or
      terminate, or waive or exercise any material right or remedy under, any
      material contract, other than in the ordinary course of business
      consistent with past practices;

    - not acquire, lease or license any right or other asset from any other
      person, or sell or otherwise dispose of, or lease or license, any right or
      other asset to any other person (except in each case for assets acquired,
      leased, licensed or disposed of in the ordinary course of business and
      consistent with past practices), or waive or relinquish any material
      right;

    - not lend money to any person, or incur or guarantee any indebtedness
      (except that it may make routine borrowings in the ordinary course of
      business and consistent with past practices);

    - not establish, adopt or amend any employee benefit plan, pay any bonus or
      make any profit-sharing or similar payment to, or increase the amount of
      the wages, salary, commissions, fringe benefits or other compensation or
      remuneration payable to, any of its directors, officers or employees
      (except that it may make routine, reasonable salary increases in
      connection with its customary employee review process and may pay
      customary bonuses consistent with past practices payable in accordance
      with certain existing bonus plans or contractual obligations);

    - not hire any employee at the level of vice-president or above, or with an
      annual base salary in excess of $75,000;

    - not change any of its pricing policies, product return policies, product
      maintenance polices, service policies, product modification or upgrade
      policies, personnel policies or other business policies, or any of its
      methods of accounting or accounting practices in any material respect;

    - not make any tax election;

    - not commence or settle any legal proceeding;

    - not enter into any material transaction or take any other material action
      outside the ordinary course of business or inconsistent with past
      practices; and

    - not agree or commit to take any of the actions listed above;

    - use all reasonable efforts to call, give notice of, hold and convene a
      meeting of its stockholders for the approval of the merger;

    - cause its board of directors to unanimously recommend that TACTech's
      stockholders approve the merger, subject to a limited right to withdraw
      its recommendation;

    - use all reasonable efforts to cause Ernst & Young to deliver to Aspect a
      letter, dated no more than 2 business days before the effective date of
      the registration statement on Form S-4, of the type that is customarily
      given in connection with registration statements on Form S-4; and

    - use all reasonable efforts to obtain and deliver resignations of its
      directors and officers prior to the closing of the merger.

COVENANTS OF TACTECH AND ASPECT

    Pursuant to the merger agreement, TACTech and Aspect have agreed that they
will:

    - use their best efforts to register under the Securities Act the issuance
      of the shares of Aspect common stock to be issued in the merger;

                                       39
<PAGE>
    - use reasonable efforts to file all notices, reports, and other documents
      required to be filed by either such party with any governmental body with
      respect to the merger;

    - use all their respective best efforts to take all actions necessary to
      effectuate the merger;

    - consult with each other before issuing any press release or other public
      statement with respect to the merger;

    - execute and deliver customary tax representation letters to their
      respective counsel before the filing of the registration statement on
      Form S-4; and

    - use all reasonable efforts to cause such counsel to deliver tax opinions
      satisfying the requirements related thereto under the Securities Act.

COVENANTS OF ASPECT

    Pursuant to the merger agreement, Aspect has agreed that it will:

    - use its best efforts to obtain all regulatory approvals to ensure that the
      common stock issued in connection with the merger will be registered or
      qualified under the securities laws of each state where a TACTech
      stockholder resides;

    - assume each TACTech option in accordance with the merger agreement;

    - comply with all legal requirements with respect to terms of employment,
      benefits and otherwise for all employees of TACTech on the closing date;

    - use its best efforts to cause the shares it will issue in connection with
      the merger to be listed on the Nasdaq National Market;

    - cause Zing, as guarantor under a certain credit agreement of TACTech, to
      be released by the lender from all guaranty and indemnity obligations
      arising under such credit agreement; and

    - not purchase any securities of TACTech prior to the effective date of the
      merger.

NO SOLICITATION OF ACQUISITION PROPOSALS

    The merger agreement provides that TACTech shall not directly or indirectly,
and shall not authorize or permit any of its subsidiaries directly or indirectly
to:

    - solicit, initiate, encourage or induce the making or submission of any
      acquisition proposal;

    - furnish any information regarding any of its subsidiaries to any third
      person in connection with or in response to an acquisition proposal;

    - engage in discussions or negotiations with any person with respect to any
      acquisition proposal;

    - approve, endorse or recommend any acquisition proposal; or

    - enter into any letter of intent or similar document or any contract
      contemplating or otherwise relating to any acquisition transaction.

    However, the forgoing restrictions will not prohibit TACTech from furnishing
nonpublic information or entering into discussions with any third person in
response to a superior offer that is submitted by such person (and not
withdrawn) if:

    - neither TACTech nor any of its representatives shall have solicited,
      initiated, encouraged or induced the submission of the offer;

    - the board of directors of TACTech concludes in good faith, based upon the
      advice of its outside legal counsel, that such action is required in order
      to comply with its fiduciary obligations;

                                       40
<PAGE>
    - prior to furnishing any such nonpublic information to, or entering into
      discussions with, a third party, TACTech gives Aspect written notice of
      its intention to furnish nonpublic information and the information is
      furnished under an appropriate confidentiality agreement; and

    - prior to furnishing any such nonpublic information TACTech furnishes such
      nonpublic information to Aspect.

    The merger agreement requires that TACTech:

    - promptly advise Aspect orally and in writing of any acquisition proposal
      made or submitted by any third person during the pre-closing period and to
      thereafter keep Aspect informed of the status and terms of such proposal;
      and

    - hold in confidence all discussions and negotiations with Aspect relating
      to the merger with certain limited exceptions.

    The merger agreement requires that:

    - if the merger is not consummated, Aspect is not to use in competition with
      TACTech or disclose to any third person: any information regarding the
      business, financial condition, assets or operations of TACTech obtained in
      connection with the merger agreement.

    An "acquisition proposal" is any offer or proposal relating to any
transaction involving any merger, consolidation, acquisition, or exchange or
other similar transaction in which any third person directly or indirectly
acquires TACTech or more than 20% of its business or directly or indirectly
acquires beneficial or record ownership of securities representing, or
exchangeable for or convertible into, more than 20% of the outstanding
securities of any class of voting securities of TACTech, or any sale, lease,
exchange, transfer, license, acquisition or disposition of more than 20% of the
assets of TACTech.

CONDITIONS TO THE MERGER

CONDITIONS PRECEDENT TO THE OBLIGATIONS OF ASPECT

    The obligations of Aspect to effect the merger and otherwise consummate the
transactions contemplated by the merger agreement are subject to the
satisfaction, at or prior to the closing, of each of the following conditions:

    - ACCURACY OF REPRESENTATIONS. Each of the representations and warranties
      made by TACTech in the merger agreement and in each of the other
      agreements and instruments delivered to Aspect in connection with the
      merger is accurate in all material respects on the closing date except for
      such inaccuracies as would not result in a material adverse change; and
      there has been no material failure by TACTech to perform any covenant or
      obligation required to be performed at or prior to closing.

    - EFFECTIVENESS OF REGISTRATION STATEMENT. The registration statement on
      Form S-4 shall have become effective in accordance with the provisions of
      the Securities Act, and no stop order shall have been issued by the SEC
      with respect to the registration statement on Form S-4, provided that any
      such failure of effectiveness shall not be the result of any breach by
      Aspect of any of its covenants under the merger agreement.

    - STOCKHOLDER APPROVAL. The merger agreement shall have been duly adopted
      and approved, and the merger shall have been duly approved, by TACTech's
      stockholders. At the closing date, persons who are dissenters will be the
      holders of no more than 10% of the issued and outstanding common stock of
      TACTech.

    - CONSENTS. All material consents required to be obtained by TACTech in
      connection with the merger shall have been obtained and shall be in full
      force and effect.

                                       41
<PAGE>
    - AGREEMENTS AND DOCUMENTS. Aspect shall have received the following
      agreements and documents, each of which shall be in full force and effect:

           (a) employment agreements executed by Malcolm Baca, Jeffrey Hanser,
       and Bruce Blackford, respectively;

           (b) affiliate agreements executed by the affiliates of TACTech,
       within the meaning of Rule 144(a)(1) promulgated under the Securities
       Act;

           (c) a legal opinion of Cooley Godward dated as of the closing date
       and addressed to Aspect, to the effect that the merger will constitute a
       reorganization;

           (d) a certificate executed on behalf of TACTech by its chief
       executive officer confirming that certain conditions set forth in the
       merger agreement have been duly satisfied; and

           (e) the written resignations of all officers and directors of
       TACTech.

    - EMPLOYEES. None of Bruce Blackford, Jeffrey Hanser and Malcolm Baca shall
      have ceased to be employed by TACTech, or shall have expressed an
      intention to terminate his employment with TACTech or to decline to accept
      employment with Aspect.

    - NO MATERIAL ADVERSE CHANGE. There shall not have occurred (a) a reduction
      in the net worth of TACTech of more than $500,000 from its net worth at
      December 31, 1999, excluding subsequent operating results, (b) a net loss
      for TACTech's quarter ending March 31, 2000, excluding certain costs and
      expenses, or (c) cancellation of more than 4 of the 11 subscribers of
      TACTech's AIM/ MAX service, other than certain listed entities, more than
      3 of the 14 subscribers to TACTech's TACTRAC service, other than certain
      listed entities whose subscriptions expire before March 31, 2000, or, if
      the closing occurs after March 31, 2000, for the period from January 1,
      2000 to the day prior to the closing, of no more than 35% of those AIM/MAX
      subscribers, other than certain listed entities, and no more than 25% of
      those TACTRAC subscribers, other than certain listed entities whose
      subscriptions expire before such date.

    - HART-SCOTT-RODINO ACT. If applicable, the waiting period applicable to the
      consummation of the merger under the Hart-Scott-Rodino Act shall have
      expired or been terminated.

    - NO RESTRAINTS. No temporary restraining order, preliminary or permanent
      injunction or other order preventing the consummation of the merger shall
      have been issued, and there shall not be any legal requirement enacted or
      deemed applicable to the merger that makes consummation of the merger
      illegal.

    - NO GOVERNMENTAL LITIGATION. There shall not be pending or threatened any
      legal proceeding in which a governmental body is or is threatened to
      become a party or is otherwise involved, and neither Aspect nor TACTech
      shall have received any communication from any governmental body
      indicating the possibility of commencing a legal proceeding relating to
      the merger.

    - NO OTHER LITIGATION. There shall not be pending any legal proceeding in
      which there is a reasonable possibility of an outcome that could have a
      material adverse effect on Aspect or TACTech.

CONDITIONS PRECEDENT TO THE OBLIGATIONS OF TACTECH

    The obligations of TACTech to effect the merger and otherwise consummate the
transactions contemplated by the merger agreement are subject to the
satisfaction, at or prior to the closing, of the following conditions:

    - ACCURACY OF REPRESENTATIONS. The representations and warranties made by
      Aspect in the merger agreement shall have been accurate in all material
      respects as of the date of the merger agreement and shall be accurate in
      all material respects as of the closing date.

                                       42
<PAGE>
    - PERFORMANCE OF COVENANTS. All of the covenants and obligations that Aspect
      is required to comply with or to perform at or prior to the closing shall
      have been complied with and performed in all material respects.

    - EFFECTIVENESS OF REGISTRATION STATEMENT. The registration statement on
      Form S-4 shall have become effective in accordance with the provisions of
      the Securities Act, and no stop order shall have been issued by the SEC
      with respect to the registration statement on Form S-4.

    - STOCKHOLDER APPROVAL. The merger agreement shall have been duly adopted
      and approved, and the merger shall have been duly approved, by the
      stockholders of TACTech.

    - DOCUMENTS. TACTech shall have received the following documents:

           (a) a legal opinion of Morrison Cohen, dated as of the closing date,
       to the effect that the merger will constitute a reorganization; and

           (b) a certificate executed on behalf of Aspect by an executive
       officer of Aspect, confirming that certain conditions have been duly
       satisfied.

    - HART-SCOTT-RODINO ACT. If applicable, the waiting period applicable to the
      consummation of the merger under the Hart-Scott-Rodino Act shall have
      expired or been terminated.

    - LISTING. The shares of Aspect common stock to be issued in the merger
      shall have been approved for listing on the Nasdaq National Market.

    - NO RESTRAINTS. No temporary restraining order, preliminary or permanent
      injunction or other order preventing the consummation of the merger by
      TACTech shall have been issued by any court of competent jurisdiction and
      remain in effect, and there shall not be any legal requirement enacted or
      deemed applicable to the merger that makes consummation of the merger by
      TACTech illegal.

    - NO ASPECT MATERIAL ADVERSE EFFECT. Since the date of the merger agreement,
      Aspect shall not have sustained a material adverse effect and no events
      have occurred as a result of which it is reasonably foreseeable that
      aspect is likely to sustain a material adverse effect.

CONDUCT OF THE BUSINESS OF THE COMBINED COMPANIES FOLLOWING THE MERGER

    Unless otherwise determined by Aspect prior to the effective time, following
the merger, TACTech will be a wholly-owned subsidiary of Aspect. Pursuant to the
merger agreement, the bylaws and certificate of incorporation of Asta Merger Sub
shall be the bylaws and certificate of incorporation of TACTech, and thereafter
may be amended in accordance with their respective terms as provided in the DGCL
and the directors and officers of TACTech shall be the individuals who are
directors and officers of Asta Merger Sub immediately prior to the effective
time.

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<PAGE>
TERMINATION

TERMINATION OF MERGER AGREEMENT

    The merger agreement may be terminated prior to the effective time of the
merger:

    - by mutual written consent of Aspect and TACTech;

    - by either Aspect or TACTech if the merger shall not have been consummated
      by August 15, 2000 (unless the failure to consummate the merger is
      attributable to a failure on the part of the party seeking to terminate
      the merger agreement to perform any material obligation required to be
      performed by such party at or prior to the effective time);

    - by either Aspect or TACTech if a court of competent jurisdiction or other
      governmental body shall have issued a final and nonappealable order,
      decree or ruling, or shall have taken any other action, having the effect
      of permanently restraining, enjoining or otherwise prohibiting the merger;

    - by Aspect if (i) the TACTech stockholders' meeting shall have been held
      and the merger agreement and the merger shall not have been approved at
      such meeting by the required stockholder vote or (ii) if holders of more
      than 10% of the TACTech common stock shall have timely elected and
      perfected dissenter's rights;

    - by TACTech if the TACTech stockholders' meeting shall have been held and
      the merger agreement and the merger shall not have been approved at such
      meeting by the required stockholder vote, provided that the failure to
      obtain this vote did not result from a breach of any of the voting
      agreements.

    - by Aspect if (i) the conditions of Aspect's obligation to close shall not
      have been satisfied, (ii) any of TACTech's covenants contained in the
      merger agreement shall have been breached in any material respect;
      PROVIDED, HOWEVER, that Aspect may not terminate the merger agreement on
      account of an inaccuracy in TACTech's representations and warranties that
      is curable or on account of a breach of a covenant by TACTech that is
      curable unless TACTech fails to cure such inaccuracy or breach within
      30 days after receiving written notice from Aspect; or

    - by TACTech if: (i) certain conditions to TACTech's obligation to close
      shall not have been satisfied; (ii) any of Aspect's covenants contained in
      the merger agreement shall have been breached in any material respect;
      PROVIDED, HOWEVER, that TACTech may not terminate the merger agreement on
      account of an inaccuracy in Aspect's representations and warranties that
      is curable or on account of a breach of a covenant by Aspect that is
      curable unless Aspect fails to cure such inaccuracy or breach within
      30 days after receiving written notice from TACTech; or (iii) the
      registration statement on Form S-4 has not become effective in accordance
      with the provisions of the Securities Act within 90 days after such
      registration statement was filed with the SEC, provided that the failure
      of such effectiveness did not result from a breach by TACTech of any of
      its covenants under the merger agreement.

TERMINATION FEE

    Aspect has agreed to pay to TACTech a termination fee equal to $500,000 if
the merger agreement is terminated as a result of the occurrence of any of the
following events:

    - TACTech terminates after certain conditions to TACTech's obligation to
      close were not satisfied;

    - TACTech terminates after any of Aspect's covenants contained in the merger
      agreement was breached in a material respect; or

                                       44
<PAGE>
    - TACTech terminates after the registration statement on Form S-4 failed to
      become effective in accordance with the provisions of the Securities Act
      within 90 days after such registration statement was filed with the SEC.

    TACTech has agreed to pay to Aspect a termination fee equal to $255,000 if
the merger agreement is terminated as a result of the occurrence of both the
following events:

    - Aspect or TACTech terminates after a stockholder meeting of TACTech where
      the merger agreement and the merger were not approved by the required
      stockholder vote; and

    - at the time of the termination of the merger agreement an acquisition
      proposal was disclosed, announced, commenced, submitted or made.

EXPENSE REIMBURSEMENT

    All fees and expenses incurred in connection with the merger agreement shall
be paid by the party incurring such expenses, whether or not the merger is
consummated; PROVIDED, HOWEVER, that Aspect and TACTech shall share equally all
fees and expenses, other than attorneys' fees, incurred in connection with the
filing, printing and mailing of the registration statement on Form S-4 and this
proxy statement/ prospectus.

    However, TACTech shall pay to Aspect in cash a nonrefundable payment in an
amount equal to the aggregate amount of all fees and expenses incurred by or on
behalf of Aspect in connection with the merger if:

    - the merger agreement is terminated by Aspect or TACTech following a
      stockholder meeting of TACTech where the merger agreement and the merger
      were not approved by the required stockholder vote, or

    - holders of more than 10% of the TACTech common stock timely elect and
      perfect dissenter's rights; or

    - any party to a voting agreement has breached such agreement.

                                VOTING AGREEMENT

    Contemporaneously with the execution and delivery of the merger agreement,
Robert M. Schrader, Robert E. Schrader, Stacy J. Schrader, Deborah J. Schrader,
Martin Fawer, Malcolm Baca, Bruce Blackford and Jeffrey Hanser, the holders of
approximately 66% of the outstanding TACTech common stock, have agreed to vote
for adoption of the merger agreement, pursuant to a voting agreement under which
such stockholders have agreed:

    - to vote FOR adoption of the merger agreement at any meeting of TACTech
      stockholders at which such matter is considered and to execute written
      consents solicited in favor of adopting the merger agreement;

    - not to enter into any voting trust or voting agreement or grant any
      proxies with respect to such stockholders' shares of TACTech common stock;
      and

    - not to solicit, initiate, encourage or induce the making of acquisition
      proposals.

The voting agreement will terminate on the earliest to occur of:

    - the termination of the merger agreement; or

    - the effective time of the merger.

    The foregoing is a summary description of the voting agreement. The voting
agreement is an exhibit to the registration statement that Aspect has filed with
the SEC in connection with the merger.

                                       45
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                   INTERESTS OF CERTAIN PERSONS IN THE MERGER

    Malcolm Baca, TACTech's Executive Vice President and Chief Operating
Officer, and other members of TACTech's management have various conflicts of
interests arising out of their ownership of TACTech common stock and their
expected employment by Aspect following the merger. The TACTech board of
directors was aware of these interests when it approved the merger agreement and
the merger.

    As of March 28, 2000 all directors and executive officers of TACTech as a
group beneficially owned a total of 205,571 shares of TACTech common stock, of
which 176,831 shares are presently issued and outstanding. As discussed further
below on page 48, TACTech granted options to purchase up to 44,904 shares of
TACTech common stock in the aggregate to two of TACTech's executive officers,
Bruce L. Blackford and Jeff Hanser, in connection with TACTech's acquisition of
RAC, and a certain portion of the presently unvested portion of such options
will accelerate upon consummation of the merger. Additionally, TACTech granted
options to purchase 3,000 shares of TACTech common stock to a director, Martin
Fawer, at an exercise price of $5.75 per share pursuant to TACTech's 1997 Option
Plan, as amended November 3, 1997, the vesting of which will accelerate upon
consummation of the merger. Additionally, a $150,000 bonus will be paid to
Malcolm Baca upon consummation of the merger.

    Three TACTech executive officers (Malcolm Baca, Bruce Blackford and Jeffrey
Hanser) have entered into employment agreements with Aspect. Under Mr. Baca's
employment agreement, Mr. Baca will receive an annual base salary of $140,000,
an annual incentive bonus in the amount of $100,000 and an option for 25,000
shares of Aspect common stock. Under Mr. Hanser's and Mr. Blackford's employment
agreement, each will receive an annual base salary of $150,000, an annual
incentive bonus in the amount of $80,000 and an option for 20,000 shares of
Aspect common stock. Each such employment agreement provides for an at-will
employment relationship with Aspect and contains nonsolicitation and
noncompetition provisions covering a period of 12 months. The arrangements set
forth in the employment agreements are generally consistent with Aspect's
practices with respect to comparable Aspect employees.

     COMPARISON OF RIGHTS OF HOLDERS OF SECURITIES OF ASPECT AND OF TACTECH

    The following discussion compares the principal rights and privileges with
respect to the existing securities of TACTech with the securities of Aspect now
existing and which will be existing following consummation of the merger. Both
Aspect and TACTech are Delaware corporations, and therefore the merger will not
affect the law applicable to the stockholders of either corporation.

POWER TO CALL SPECIAL MEETINGS OF THE STOCKHOLDERS

    Special meetings of the stockholders of Aspect may be called by the board of
directors, the chairman of the board, the president, or holders of shares
entitled to cast not less than 10% of the votes at such meeting. Special
meetings of the stockholders of TACTech may be called by the chairman of the
board of directors, the vice chairman of the board of directors, the president,
or by resolution of the board of directors. In addition, TACTech's president or
secretary must call a special meeting at the request of holders of 66 2/3% of
the of the entire capital stock of TACTech issued and outstanding and entitled
to vote.

QUORUM OF STOCKHOLDERS

    At any meeting of the stockholders of Aspect, the holders of a majority of
all the shares entitled to vote constitute a quorum. At any meeting of the
stockholders of TACTech, the holders of a third of all the shares entitled to
vote constitute a quorum.

ACTION BY STOCKHOLDERS WITHOUT A MEETING

    An action may be taken without a meeting by the stockholders of Aspect if a
consent in writing is signed by the holders of outstanding shares having not
less than the minimum number of votes which

                                       46
<PAGE>
would be necessary to authorize such action at a meeting at which all shares
were present. An action may be taken without a meeting by the stockholders of
TACTech if a consent in writing is signed by all stockholders entitled to vote
upon the action.

BOARD OF DIRECTORS

    There are currently 4 directors of Aspect. The number of directors of Aspect
shall be fixed exclusively by a vote of the outstanding shares entitled to vote
and the Aspect directors shall have a term of one year. Vacancies may be filled
only by the majority vote of the outstanding Aspect shares. Directors of Aspect
may be removed by a majority vote of the outstanding shares. Vacancies arising
from such removal may be filled only by a majority of the Aspect board of
directors or a plurality of the Aspect stockholders entitled to vote.

    There are currently 4 directors of TACTech. The board of directors of
TACTech shall consist of at least 3 and not more than 10 directors, classified
into three classes if there shall be 7 or more directors, or 2 classes if there
shall be fewer than 7 and more than 3 directors, in either case with each class
being as nearly as possible equal in size to the others. The majority of the
board of directors or stockholders of TACTech may determine the number of
directors of TACTech. The TACTech directors have a term of 2 years. Vacancies
may be filled by a majority of the board of directors of TACTech.

AMENDMENT OF CHARTER AND BYLAWS

    The certificate of incorporation of Aspect may be amended by the board of
directors and the stockholders, provided that any amendment that would increase
or decrease the authorized number of directors of Aspect shall be approved by
the number of then authorized number of directors minus one. The bylaws of
Aspect may be amended by a majority of the total authorized number of directors
or by the stockholders of Aspect.

    The certificate of incorporation of TACTech may be amended by the board of
directors, provided that the amendment of the following provisions require the
vote of holders of at least 66 2/3% of the total voting power of all outstanding
shares of voting stock entitled to vote generally in the election of directors,
voting as a single class, and a majority of such shares other than such shares
held by interested stockholders:

    - Article 5 (relating to TACTech's perpetual existence);

    - Article 6 (relating to the private property of stockholders);

    - Article 7 (relating to bylaw amendments);

    - Article 8 (relating to directors);

    - Article 9 (relating to business combinations);

    - Article 10 (relating to indemnification of officers and directors);

    - Article 12 (relating to special meetings of stockholders); and

    - Article 13 (relating to amendments to the certificate of incorporation).

    The bylaws of TACTech may be amended by a majority of the board of directors
or by the stockholders of TACTech, provided that any bylaw adopted by the board
of directors may be amended or repealed by the stockholders and provided that
the amendment of the following bylaw provisions require the vote of the holders
of at least 66 2/3% of the outstanding stock of TACTech entitled to vote for
election of directors and a majority of such shares other than shares held by
interested stockholders:

    - Section 3.1 (related to the number, qualification, election and term of
      directors);

    - Section 3.2 (related to quorum and manner of acting);

                                       47
<PAGE>
    - Section 3.7 (related to resignation and removal of directors);

    - Section 3.8 (related to vacancies); and

    - Section 7.6 (related to amendments).

                DESCRIPTION OF TACTECH AND ASPECT CAPITAL STOCK

TACTECH COMMON STOCK

    Each share of TACTech common stock entitles the holder to one vote for each
share held of record on all matters submitted to a vote of TACTech's
stockholders. The holder of each share of TACTech common stock is not entitled
to any cumulative voting rights. Each holder is entitled to receive dividends,
if any, declared by the board of directors. If TACTech is liquidated, dissolved
or wound up, each holder is entitled to share ratably with the other
stockholders in the distribution of all assets that TACTech has left after it
pays all of its liabilities. Each holder has no preemptive rights to subscribe
for additional shares of common stock and no right to convert his common stock
into any other securities. In addition, each holder does not have the benefit of
a sinking fund for his shares of common stock. Each holder's common stock is not
redeemable by TACTech.

TACTECH 1997 STOCK OPTION PLAN OPTIONS

    35,800 options granted pursuant to TACTech's 1997 Option Plan (1997 Options)
are currently outstanding. Each 1997 Option entitles the holder to purchase one
share of TACTech common stock.

    On September 3, 1997, TACTech granted 26,200 1997 Options at an exercise
price of $4.00 per share. 8,800 of these options vested immediately; 1,800
vested on the first anniversary of their grant; and 15,600 vest ratably over a
three-year period as measured from the date of grant. However, TACTech's Stock
Option Committee may accelerate the vesting of any unvested portion of these
1997 Options, at its sole discretion, upon the occurrence of a Change of
Control, as defined in the 1997 Option Plan. All 26,200 of these options expire
at 5:00 p.m., California time, on November 3, 2007, and, except as provided
under the 1997 Option Plan, if a holder of any of these 1997 Options fails to
exercise any such option by the date of expiration, such option will expire and
the holder will have no further rights thereto.

    On April 28, 1999, TACTech granted 9,600 1997 Options at an exercise price
of $5.75 per share. These options vest ratably over a three-year period, as
measured from the date of grant. However, all unvested portions of these 1997
Options will vest upon the occurrence of a Change of Control, as defined in the
1997 Option Plan. All 9,600 of these options expire at 5:00 p.m., California
time, on April 27, 2009, and, except as provided under the 1997 Option Plan, if
a holder of these 1997 Options fails to exercise any such option by the date of
expiration, such option will expire and the holder will have no further rights
thereto.

    The holders of the 1997 Options do not have any rights, privileges or
liabilities as stockholders of TACTech prior to their exercise of such options.
As provided in the 1997 Option Plan, 1997 Options are subject to certain
adjustments upon Changes of Capitalization and Changes of Control, both as
defined in such plan.

RAC SELLING STOCKHOLDERS OPTIONS

    In connection with TACTech's acquisition of RAC, the two RAC selling
stockholders were granted options for up to 44,904 shares of TACTech common
stock, in the aggregate, at an exercise price of $3.00 per share. These options
were not granted pursuant to TACTech's 1997 Option Plan. These options vest over
a three-year period at a rate of up to 14,968 shares per year. The right to
exercise these options is subject to incremental vesting as (and if) TACTech
achieves certain targeted sales goals. However, upon the occurrence of certain
events, as described pursuant to the terms of these options, unvested portions
of these options will vest as of the time immediately preceding such events,
provided that in no event will any

                                       48
<PAGE>
portion of these options that did not vest as a result of TACTech failing to
meet certain targeted sales goals vest upon the occurrence of such events. As of
March 28, 2000, 28,740 of these options had vested. Except as otherwise provided
pursuant to the terms of these options, all of these options expire at
5:00 p.m., New York time, on September 30, 2002, and if a holder fails to
exercise any of these options by the date of expiration, any such option will
expire and such holder will have no further rights thereto. The holders of these
options do not have any rights, privileges or liabilities as stockholders of
TACTech prior to the exercise of such options. As provided pursuant to the terms
of these options, these options are subject to certain adjustments.

TACTECH OPTIONS UNDER THE MERGER AGREEMENT

    Pursuant to the merger agreement, all TACTech options, other than those that
terminate at or before the consummation of the merger, shall be converted into
options to purchase, on identical terms and conditions, those number of shares
of Aspect common stock equal to the number of shares of TACTech common stock for
which such option may be exercised multiplied by the exchange ratio set forth in
the merger agreement.

DESCRIPTION OF ASPECT CAPITAL STOCK

    The authorized capital stock of Aspect consists of 100,000,000 shares of
common stock and 2,000,000 shares of preferred stock, par value $0.001 per
share. Six Hundred Thousand (600,000) shares of preferred stock are designated
Series A Junior Participating Preferred Stock and are reserved for issuance upon
exercise of the rights distributed to the holders of Aspect common stock
pursuant to the Share Purchase Rights Plan referred to below. The following
summary of certain provisions of the common stock and the preferred stock of
Aspect does not purport to be complete and is subject to, and qualified in its
entirety by, the Certificate of Incorporation and By-Laws of Aspect and by
provisions of applicable law.

ASPECT COMMON STOCK

    As of April 3, 2000, there were approximately 61,222,105 shares of common
stock outstanding held of record by 179 stockholders. The holders of common
stock are entitled to one vote for each share held of record on all matters
submitted to a vote of the holders of common stock. Subject to preferences
applicable to any outstanding preferred stock, holders of common stock are
entitled to receive ratably such dividends as may be declared by the board of
directors out of funds legally available therefor. In the event of a
liquidation, dissolution or winding up of Aspect, the holders of common stock
are entitled to share ratably in all assets remaining after payment of
liabilities and the liquidation preference of any preferred stock. Holders of
common stock have no preemptive or subscription rights and there are no
redemption or conversion rights with respect to such shares. All outstanding
shares of common stock are fully paid and non-assessable.

ASPECT PREFERRED STOCK

    The board of directors has the authority, without action by the
stockholders, to designate and issue preferred stock in one or more series and
to designate the dividend rate, voting rights and other rights preferences and
restrictions of each series, any and all of which may be greater than the rights
of the common stock. The effect of the issuance of any shares of preferred stock
upon the rights of the holders of the common stock may not be determined until
the board of directors specifies the rights of the holders of such preferred
stock. Such effects might include, among other things, restricting dividends on
the common stock, diluting the voting power of the common stock, impairment of
the liquidation rights of the common stock and delaying or preventing a change
in control of Aspect without further action by the stockholders. Aspect has no
present plans to issue any shares of preferred stock.

                                       49
<PAGE>
ASPECT SERIES A JUNIOR PARTICIPATING PREFERRED STOCK

    DESIGNATION AND AMOUNT.  The Series A Junior Participating Preferred Stock
has a par value of $0.001 per share and a liquidation preference of $100 per
share, plus accrued and unpaid dividends. The authorized number of shares of
Series A Junior Participating Preferred Stock is 600,000.

    RANK.  With respect to dividend rights and rights on distributions of
assets, the Series A Junior Participating Preferred Stock ranks junior to all
classes of preferred stock of Aspect.

    DIVIDENDS.  The holders of Series A Convertible Junior Participating Stock
are entitled to receive, when, as and if declared by Aspect's board of directors
out of funds legally available therefor, cash dividends in an amount per share
equal to the greater of (a) $1.00 or (b) 100 times the aggregate per share
amount of all cash dividends and non-cash dividends and other distributions paid
on the common stock. No interest accrues on accumulated but unpaid dividends.
Holders of shares of Series A Junior Participating Preferred Stock are not
entitled to any other dividends.

    REDEMPTION.  The shares of Series A Junior Preferred Stock are not
redeemable.

    VOTING RIGHTS.  Each share of Series A Junior Participating Preferred Stock
shall entitle the holder to 100 votes on all matters submitted to a vote of the
stockholders, and such shares shall vote together with the holders of common
stock as one class. The vote of at least 66 2/3% of the outstanding Series A
Junior Participating Preferred Stock, voting separately as a series, is required
to adopt any alteration, amendment or repeal of any provision of Aspect's
certificate of incorporation, if such amendment, alteration or repeal would
alter or change the powers, preferences or special rights of the Series A Junior
Participating Preferred Stock so as to affect them adversely.

    LIQUIDATION RIGHTS.  Upon any liquidation, dissolution or winding-up of
Aspect, the holders of Series A Junior Participating Preferred Stock will be
entitled to receive liquidating distributions in the amount of $100 per share,
plus an amount equal to all accrued and unpaid dividends thereon to the date
fixed for distribution, before any distribution or payment is made to holders of
common stock or on any other class of Aspect stock ranking junior as to
dividends or assets distributable upon Liquidation to the holders of shares of
Series A Junior Participating Preferred Stock.

    CONSOLIDATION, MERGER.  In the event Aspect consummates any consolidation or
merger or similar business combination, pursuant to which the outstanding shares
of common stock are exchanged for or changed into other stock or securities, the
Series A Convertible Junior Participating Stock of such holder will be similarly
exchanged or changed into an amount per share equal to 100 times the aggregate
amount of stock, securities, cash and/or other property into which each share of
common stock is changed or exchanged.

       STOCK OWNERSHIP BY DIRECTORS AND EXECUTIVE OFFICERS; VOTE REQUIRED

    As of January 31, 2000, the directors and executive officers of Aspect, as a
group, beneficially owned approximately 27.35% of the outstanding Aspect Common
Stock. As of March 28, 2000, the directors and executive officers of TACTech, as
a group, beneficially owned approximately 32.76% of the outstanding TACTech
common stock.

    The vote of holders of two-thirds of the shares of TACTech common stock
outstanding on the record date is required to adopt the merger agreement.

                                       50
<PAGE>
              SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND
                             MANAGEMENT OF TACTECH

    The following table sets forth, as of March 28, 2000, information concerning
beneficial ownership of voting securities of TACTech by all directors and
executive officers of TACTech and each person who is known by management to own
beneficially more than 5% of any class of such securities:

<TABLE>
<CAPTION>
                                                            AMOUNT OF TACTECH COMMON   PERCENT OF
NAME                                     TITLE              STOCK BENEFICIALLY OWNED    CLASS(1)
- ----                          ----------------------------  ------------------------   ----------
<S>                           <C>                           <C>                        <C>
Stacy J. Schrader(2)........  Stockholder                            109,169              18.23%
Robert M. Schrader(2).......  Stockholder                            109,168              18.23%
Malcolm Baca(2).............  Executive Vice President and            55,383               9.25%
                              C.O.O.
Robert E. Schrader(2)(3)....  President and C.E.O.                    72,576(4)           12.12%
Deborah J. Schrader(2)(3)...  Secretary and Director                  72,576(4)           12.12%
Martin S. Fawer(2)..........  Chief Financial Officer and              3,968(5)               *
                              Director
Bruce L. Blackford(2).......  Senior Vice President                   36,822(6)            6.00%
Jeff Hanser(2)..............  Senior Vice President                   36,822(6)            6.00%
David Lerner(2).............  Director                                     0                  *
All officers and directors    Director                               205,571              32.76%
  as a group (7 persons)....
</TABLE>

- ------------------------

*   less than one percent

(1) Beneficial ownership is determined in accordance with the rules of the
    Securities and Exchange Commission and generally includes voting or
    investment power with respect to securities. Shares of common stock issuable
    upon the exercise of options or warrants currently exercisable, or
    exercisable or convertible within 60 days, are deemed outstanding for
    computing the percentage ownership of the person holding such options or
    warrants but are not deemed outstanding for computing the percentage
    ownership of any other person. To TACTech's knowledge, the persons named in
    this table have sole voting and investment power with respect to all shares
    of common stock shown as beneficially owned by them, subject to community
    property laws where applicable and except as otherwise indicated in other
    footnotes to this table.

(2) The address of Stacy J. Schrader is 666 Greenwich Street, New York, NY
    10014. The address of Robert M. Schrader is 24 Carhart Avenue, White Plains,
    NY 10602. The address of Malcolm Baca is 22687 Old Canal Road, Yorba Linda,
    California. The address of Robert E. Schrader and Deborah J. Schrader is 72
    Haight Cross Road, Chappaqua, New York 10514. The address of Martin S. Fawer
    is 111 West 67(th) Street, New York, New York 10023. The address of Bruce L.
    Blackford is 3465 Camino Del Rio South, Suite 430, San Diego, California
    92108. The address of Jeff Hanser is 3465 Camino Del Rio South, Suite 430,
    San Diego, California 92108. The address of David Lerner is c/o Morrison
    Cohen Singer & Weinstein, LLP, 750 Lexington Avenue, New York, New York
    10022.

(3) Robert E. Schrader and Deborah J. Schrader disclaim beneficial ownership of
    the shares of TACTech common stock owned by Robert M. Schrader and Stacy J.
    Schrader, who are their children. Deborah J. Schrader owns no shares
    directly.

(4) Robert E. Schrader and Deborah J. Schrader jointly beneficially own 72,576
    shares of common stock.

(5) Excludes options held by Martin S. Fawer to purchase 3,000 shares of common
    stock which will vest upon consummation of the merger.

(6) Excludes options held by Bruce L. Blackford and Jeff Hanser to each purchase
    7,484 shares of common stock which will vest upon consummation of the
    merger.

                                       51
<PAGE>
    SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT OF ASPECT

    The following table sets forth certain information regarding the beneficial
ownership of Aspect's common stock as of January 31, 2000 by: (i) each director;
(ii) each of the Named Executive officers; (iii) all current executive officers
and directors as a group; and (iv) all those known to be beneficial owners of
more than five percent of Aspect's common stock:

<TABLE>
<CAPTION>
                                                                    BENEFICIAL OWNERSHIP(1)
                                                              -----------------------------------
BENEFICIAL OWNER                                              NUMBER OF SHARES   PERCENT OF TOTAL
- ----------------                                              ----------------   ----------------
<S>                                                           <C>                <C>
Romesh Wadhwani(2)..........................................     14,821,000            22.92%
  1395 Charleston Road
  Mountain View, CA 94043
FMR Corp.(3)................................................      5,122,106             8.58%
  82 Devonshire Street
  Boston, MA 02019..........................................
Robert L. Evans(4)..........................................      1,080,000             1.78%
James Althoff(5)............................................        718,694             1.19%
Steven Goldby(6)............................................         70,004                *
David S. Dury(7)............................................        420,800                *
Dennis G. Sisco(8)..........................................        144,000                *
Donald Tomkinson(9).........................................        294,202                *
All directors and current executive officers as a group (10      18,636,718            27.35%
  persons)(10)..............................................
</TABLE>

- ------------------------

*   Less than 1%.

(1) Beneficial ownership is determined in accordance with the rules of the SEC,
    based on factors including voting and investment power. Shares of common
    stock subject to options currently exercisable or exercisable within
    60 days after January 31, 2000 are deemed outstanding for computing the
    percentage ownership of the person or entity holding such securities, but
    are not deemed outstanding for computing the percentage ownership of any
    other person or entity. To Aspect's knowledge, the persons named in this
    table have sole voting and investment power with respect to all shares of
    common stock shown as beneficially owned by them, subject to community
    property laws where applicable and except as indicated in the other
    footnotes to this table. Applicable percentage of beneficial ownership is
    based on 59,710,222 shares of common stock outstanding as of January 31,
    2000, net of treasury stock.

(2) Includes 4,940,000 shares subject to immediately exercisable options held by
    Dr. Wadhwani, 2,516,670 of which are subject to a right to repurchase by
    Aspect which right lapses over time.

(3) Consists of 4,022,066 shares held by Fidelity Management & Research Company
    ("Fidelity"), which is a wholly-owned subsidiary of FMR Corp.; 1,070,200
    shares held by Fidelity Management Trust company, a is wholly-owned
    subsidiary of FMR Corp.; 29,840 shares held by Fidelity International
    Limited and various foreign-based subsidiaries which provide investment
    advisory and management services to a number of non-U.S. investment
    companies. Based upon information supplied in Schedule 13G filed with the
    SEC in February 2000.

(4) Includes 1,080,000 shares subject to immediately exercisable options held by
    Mr. Evans, 1,000,002 of which are subject to a right to repurchase by Aspect
    which right lapses over time.

(5) Includes 470,252 shares subject to immediately exercisable options held by
    Mr. Althoff, 272,778 of which are subject to a right to repurchase by Aspect
    which right lapses over time.

(6) Includes 70,004 shares subject to immediately exercisable options held by
    Mr. Goldby, 66,670 of which are subject to a right to repurchase by Aspect
    which right lapses over time.

                                       52
<PAGE>
(7) Includes 360,800 shares subject to immediately exercisable options held by
    Mr. Dury, 260,168 of which are subject to a right to repurchase by Aspect
    which right lapses over time.

(8) Includes 140,000 shares subject to immediately exercisable options held by
    Mr. Sisco, 66,254 of which are subject to a right to repurchase by Aspect
    which right lapses over time.

(9) Includes 294,202 shares subject to immediately exercisable options held by
    Mr. Tomkinson, 285,622 of which are subject to a right to repurchase by
    Aspect which right lapses over time.

(10) Includes shares described in the notes above, as applicable. Includes
    8,438,966 shares subject to stock options held by all executive officers and
    directors, as a group, exercisable within 60 days of January 31, 2000.

                                       53
<PAGE>
                   SELECTED TACTECH HISTORICAL FINANCIAL DATA

    The following selected historical financial data for the years ended
June 30, 1999 and 1998 are derived from the consolidated financial statements of
TACTech as included in its June 30, 1999 Form 10-KSB (as amended) and included
in this proxy statement/prospectus and should be read in conjunction with those
financial statements and notes related thereto. The selected financial data as
of December 31, 1999, December 31, 1998 and for the six months ended on such
dates are derived from the condensed consolidated financial statements of
TACTech as included in its December 31, 1999 Form 10-QSB and included in this
proxy statement/prospectus. Such unaudited data includes, in management's
opinion, all normal recurring adjustments necessary to present fairly the
results of operations and financial position of TACTech for such periods.
Results for interim periods are not necessarily indicative of the results to be
expected for an entire year. The following data should also be read in
conjunction with the financial statements, related notes, "Management's
Discussion and Analysis of TACTech Financial Condition and Results of
Operations," and other financial information included in this proxy
statement/prospectus.

<TABLE>
<CAPTION>
                                                                                  SIX MONTHS ENDED
                                                           YEAR ENDED JUNE 30,      DECEMBER 31,
                                                           -------------------   -------------------
                                                             1999       1998       1999       1998
                                                           --------   --------   --------   --------
<S>                                                        <C>        <C>        <C>        <C>
CONSOLIDATED STATEMENT OF OPERATIONS DATA:
Total revenues...........................................   $4,512     $3,483     $2,509     $2,127
Operating income (loss)..................................      214       (693)       129         57
Net income (loss)........................................   $  150     $ (735)    $    5     $   22
                                                            ------     ------     ------     ------
Net income (loss) per share--basic.......................   $ 0.25     $(1.25)    $ 0.01     $ 0.04
                                                            ------     ------     ------     ------
Net income (loss) per share--diluted.....................   $ 0.24     $(1.25)    $ 0.01     $ 0.04
                                                            ------     ------     ------     ------
Number of shares used in computing per share
  amounts--basic.........................................      599        586        599        599
                                                            ------     ------     ------     ------
Number of shares used in computing per share amounts--
  diluted................................................      621        586        639        617
                                                            ------     ------     ------     ------
</TABLE>

<TABLE>
<CAPTION>
                                                                   JUNE 30,         DECEMBER 31,
                                                              -------------------   ------------
                                                                1999       1998         1999
                                                              --------   --------   ------------
<S>                                                           <C>        <C>        <C>
CONSOLIDATED BALANCE SHEET DATA:
Cash and cash equivalents and short-term investments........   $  212     $  120       $  420
Working capital (deficit)...................................     (558)      (106)        (501)
Total assets................................................    1,768      1,394        1,876
Long-term obligations, less current portion.................       --        620           --
Stockholders' equity (deficit)..............................     (120)      (271)        (115)
</TABLE>

                                       54
<PAGE>
           MANAGEMENT'S DISCUSSION AND ANALYSIS OF TACTECH FINANCIAL
                      CONDITION AND RESULTS OF OPERATIONS

    The discussion and analysis below should be read in conjunction with the
TACTech Financial Statements and the notes related thereto included in this
proxy statement/prospectus.

    Analysis of Financial Condition and Results of Operations covers the fiscal
years ended June 30, 1999 and 1998 and the six months ended December 31, 1999
and 1998.

    The following table expresses certain items from TACTech's statements of
operations as a percentage of revenues for the periods indicated:

<TABLE>
<CAPTION>
                                                 YEAR ENDED         SIX MONTHS ENDED
                                                  JUNE 30             DECEMBER 31,
                                            --------------------   -------------------
                                              1999        1998       1999       1998
                                            --------    --------   --------   --------
                                                                       (UNAUDITED)
<S>                                         <C>         <C>        <C>        <C>
Revenues..................................   100.0%      100.0%       100%       100%
Selling, general and administrative
  expenses................................    92.8       117.4       92.6       94.9
Depreciation of equipment.................     2.0         2.1        1.9        2.0
Amortization of software development costs
  and acquisition costs...................     0.4         0.4        0.4        0.4
Interest expense..........................     1.4         1.2        1.2        1.6
Income (loss) before income taxes.........     3.4       (21.1)       3.9        1.1
Provision for income taxes................      --          --        3.7         --
Net income (loss).........................     3.4%      (21.1)%      0.2%       1.1%
</TABLE>

RESULTS OF OPERATIONS--FISCAL YEAR ENDED JUNE 30, 1999
COMPARED TO FISCAL YEAR ENDED JUNE 30, 1998

    TACTech realized net income of $150,484 or $0.25 per share (basic) and $0.24
per share (diluted) for the fiscal year ended June 30, 1999 as compared to a
loss of $735,000 or $1.25 per share (basic and diluted) for the fiscal year
ended June 30, 1998.

    Revenues increased $1,029,000, or 30%, during the fiscal year ended
June 30, 1999 from $3,483,000 in the 1998 fiscal year. This increase in revenue
was primarily attributable to the conversion of customers from TACTech's basic
subscription service to the more robust TACTRAC service, and the increase in the
subscription prices and fees associated with the TACTRAC service.

    Selling, general and administrative expenses increased approximately
$103,000 to $4,190,000 for the 1999 fiscal year as compared to $4,087,000 for
the prior year. The net dollar increase of $103,000 was primarily attributable
to the following factors: (1) salaries and related costs associated with the RAC
acquisition and ongoing costs related to the continued development and upgrading
of the TACTRAC software amounting to $75,000 and $105,000, respectively, and
(2) selling and related expenses incurred to promote and increase sales of the
TACTRAC product which amounted to $282,000. These increases were offset by a
reduction of legal and professional expenses and relocation of facilities in the
prior fiscal year amounting to $337,000 and $45,000, respectively.

    Depreciation for the fiscal year ended June 30, 1999 was approximately
$90,400 as compared to approximately $73,300 for the prior year. TACTech
depreciates its capital assets over a five year period, recording only one half
year depreciation in the year of acquisition. TACTech acquired capital assets in
fiscal 1999 and fiscal 1998 in the approximate amounts of $89,300 and $119,000,
respectively, and pursuant to its depreciation policy, recorded an increase of
$17,100 in fiscal 1999 as compared to the prior reporting period.

                                       55
<PAGE>
    Interest expense, which increased by $22,000 to $63,000 in the 1999 fiscal
year from $41,000 in the 1998 fiscal year, is attributable to amounts borrowed
pursuant to TACTech's bank line of credit to fund operations and purchases of
computer and related equipment.

    The current provision for income taxes for the fiscal year ended June 30,
1999 was offset by a deferred tax benefit resulting from carryforward net
operating losses of approximately $208,000 and because of other timing
differences between book and taxable income. There is however, a current tax
liability of $98,000 at June 30, 1999. There was no provision for income taxes
for the fiscal year ended June 30, 1998 because of the reported loss for that
year. At June 30, 1999 and 1998, deferred tax assets of $348,000 and $317,000
were offset by the valuation allowances of $250,000 and $317,000, respectively.

RESULTS OF OPERATIONS--FISCAL YEAR ENDED JUNE 30, 1998
COMPARED TO FISCAL YEAR ENDED JUNE 30, 1997

    TACTech sustained a loss of $735,000, or $1.25 per share, for the fiscal
year ended June 30, 1998 as compared to net income of $199,000, or $.36 per
share, for the fiscal year ended June 30, 1997.

    The loss for the fiscal year ended June 30, 1998 is primarily attributable
to an increase in selling, general and administrative expenses due primarily to
professional fees incurred by TACTech in TACTech's lawsuit, subsequently
terminated, seeking injunctive relief against a competitor and a former
employee, the cost of programming consultants incurred related to the
enhancement of the RAC search engine technology and certain management incentive
bonuses.

    Revenues increased $1,277,000, or 58% during the fiscal year ended June 30,
1998 from $2,206,000 for 1997.

    The current revenue increase in 1998 over 1997 is attributed, in part, to an
increase in the number of licenses and in part because of greater revenues per
subscriber at June 30, 1998 as compared to June 30, 1997.

<TABLE>
<CAPTION>
                                                                  YEAR ENDED
                                                                    JUNE 30
                                                              -------------------
                                                                1998       1997
                                                              --------   --------
<S>                                                           <C>        <C>
Subscribers at beginning of period..........................      95         73
Subscribers who did not renew...............................     (17)       (12)
Subscribers added during period.............................      29         34
                                                                ----       ----
Subscribers at end of period................................     107         95
                                                                ====       ====
</TABLE>

    Approximately $584,000 of the revenue increase was generated by higher
subscription prices attributable to the TACRAC products.

    Prior to its acquisition, RAC principally derived revenues from consulting
services and customer-specific projects under cost plus fixed fee contracts with
the Department of Defense and government contractors. Such revenues contributed
approximately $198,000 to the 1998 revenue increase.

    Selling, general and administrative expenses during fiscal 1998 increased to
approximately $4,087,000 from $1,863,000 for 1997. This increase of
approximately $2,224,000 is primarily attributed to the following:

    - Coincident to the acquisition of RAC in September 1997, the two RAC
      selling stockholders received employment agreements. Each employment
      agreement provided for an annual base salary (including certain employee
      benefits) up to an aggregate of $200,000 and an incentive bonus up to
      $100,000 annually, measured by TACTech achieving certain targeted sales
      goals. The annual period for such measurement commenced on September 1,
      1997 and as the targeted performance levels became probable of
      achievement, appropriate provisions for the maximum incentive bonuses were

                                       56
<PAGE>
      recorded equally between the third and fourth quarter of the current
      fiscal year. As a result of these agreements, approximately $600,000
      contributed to the increase in selling and general administrative expenses
      for 1998.

    - Other increases in costs are primarily attributable to the RAC acquisition
      and include rent and utilities, professional fees, telephone, insurance,
      travel and other general administrative expenses of approximately
      $143,000.

    - $264,000 of legal and professional fees incurred as the result of the
      commencement by TACTech of a lawsuit seeking injunctive relief to enjoin a
      former employee from using trade secrets and a competitor for breaching a
      non-solicitation agreement.

    - Programming costs of $266,000 relating to augmenting TACTech's existing
      customer interface design as well as adopting RAC's component analysis
      technology.

    - Included in the total dollar increase were costs primarily related to the
      ongoing development of TACTech's database relating to commercial
      components as represented by increases in personnel costs as well as
      increases in marketing and selling expenses in the approximate amount of
      $313,000.

    Depreciation for the fiscal year ended June 30, 1998 was approximately
$73,300 as compared to approximately $40,000 for 1997. TACTech acquired capital
assets in fiscal 1998 and fiscal 1997 in the amounts of approximately $119,000
and $153,000, respectively, and pursuant to its depreciation policy, recorded an
increase of approximately $23,000 in fiscal 1998 as compared to the prior
reporting period. The acquisition of RAC in September 1997 accounted for the
balance of the increase in depreciation expense in the amount of $11,000.

    The 1998 interest expense is attributable to amounts borrowed pursuant to
the TACTech's bank line of credit to fund operations and purchases of computer
and related equipment. There were no significant short term borrowings during
1997.

    There was no provision for income taxes for the fiscal year ended June 30,
1998 because of the reported loss. In 1997 TACTech filed its federal income
taxes on a consolidated basis for the fiscal 1997 year with its former parent,
Zing. Income taxes were computed on a separate company basis pursuant to the
liability method.

RESULTS OF OPERATIONS--SIX MONTHS ENDED DECEMBER 31, 1999
COMPARED TO SIX MONTHS ENDED DECEMBER 31, 1998

    TACTech reported net income of $5,000 or $.01 per share (basic and diluted),
for the six months ended December 31, 1999 as compared to $22,000 or $.04 per
share (basic and diluted) for the six months ended December 31, 1998.

    Revenues for the six months ended December 31, 1999 were $2,509,000 as
compared to $2,127,000 for the six months ended December 31, 1998, an increase
of 18%. The net increase of approximately $382,000 is primarily attributable to
the conversion of the existing TACTech service customers to TACTRAC and the
increase in the subscription prices and fees associated with TACTRAC.

    Selling, general and administrative expenses increased by approximately
$304,000 for the six months ended December 31, 1999 as compared to the 1998
period. The increase was attributable to the following factors: (1) salaries and
related costs associated with information systems in upgrading TACTRAC amounting
to approximately $70,000, (2) selling and related costs approximating $45,000
incurred to promote TACTRAC sales, and (3) legal and professional fees of
approximately $200,000 in connection with the filing of a registration statement
for the purposes of distributing stock purchase rights to all shareholders and
the merger transaction. This rights offering was canceled during January 2000
following the execution of the merger agreement with Aspect.

                                       57
<PAGE>
    Depreciation and amortization increased $7,000 for the six month period
ended December 31, 1999 as compared to the 1998 period. This increase relates to
the purchase of approximately $110,000 of computers and related equipment in the
fiscal year ended June 30, 1999 and in the six month period ended December 31,
1999.

    Interest expense decreased $5,000 for the six month period ended
December 31, 1999 as compared to the comparable 1998 period. This resulted from
a decrease in average bank borrowings during the comparable periods.

    The provision for income taxes for the six months ended December 31, 1999
differs from the statutory federal rate of 34% primarily due to (1) the effect
of merger transaction expenses that are not deductible for tax purposes and
(2) state taxes. There was no provision for income taxes for the six months
ended December 31, 1998 because of carryforward net operating losses for which
the related deferred tax asset was fully reserved.

TRENDS

    CORE BUSINESS.

    The following discussion should be reviewed in contemplating the overall
industry trends which might affect TACTech on a stand-alone independent basis if
the merger were not approved. If the merger is approved, these trends would
likely not be as material to the surviving company. Although a declining U.S.
military budget may result in a reduction in new program awards, the total
number or dollar value of expenditures for maintenance, repair and operations is
increasing to sustain the deployment of existing military systems. TACTech
believes that Department of Defense imperatives aimed at modernizing existing
systems will make TACTech's efficient obsolescence management services more
valuable as a means of reducing and managing the incidence of technological
obsolescence and assisting electronic system designers in identifying the best
solution options for semiconductor content in electronic systems.

    NEW MARKET OPPORTUNITIES.

    Management also believes that the expertise TACTech has developed in the
military and aerospace market to rapidly distribute reliable semiconductor
availability, compatibility and obsolescence data to the affected engineering
community will also be valuable to the general commercial and industrial
markets, with the appropriate level of capital and personnel resources, which
TACTech currently lacks, and could become an integral tool on an enterprise-wide
basis to help control design and inventory costs of systems that incorporate
semiconductor components. The expansion of TACTech's focus to include a larger
number of commercial and industrial components and to present its services to an
enterprise-wide audience potentially expands the market which TACTech may
penetrate. There can be no assurance, however, that TACTech will be able, on a
cost-effective basis or at all, to develop a commercial or industrial market or
to broaden its current reach principally among systems design engineers.

LIQUIDITY AND CAPITAL RESOURCES

    In fiscal 1999 and the first six months ended December 31, 1999, cash from
operations was used to purchase computer and related equipment, reduce
borrowings under a line of credit and provide working capital.

    In fiscal 1998, TACTech used proceeds from a line of credit to fund
operations and for the acquisition of computer related equipment.

    Internal cash flow generated by the operations of TACTech on a stand-alone
basis, together with borrowings under TACTech's $1.5 million credit facility
(see Note 6 of Notes to Consolidated Financial Statements), should be sufficient
for TACTech to meet its short-term working capital and capital expenditure
requirements for its current core business. The credit facility, however, is
scheduled to expire on

                                       58
<PAGE>
July 1, 2000. It is likely that TACTech will be required to make other financing
arrangements upon the expiration of its present credit facility.

    Management believes that the combination of internally generated cash and
capital available under existing bank lines of credit will not, however, be
sufficient to enable TACTech to achieve the market expansion contemplated by
TACTech's strategic plan on a stand-alone basis. Additional capital will be
required to expand TACTech's product depth, and to strengthen marketing staff
and senior management, particularly to address the commercial and industrial
market to enable TACTech to focus marketing efforts on enterprise-wide
solutions. With the withdrawal of its Form S-3 registration statement following
the execution of the merger agreement with Aspect, TACTech ceased its efforts to
secure additional capital.

IMPACT OF INFLATION

    In fiscal 1999 and fiscal 1998, inflation did not have a significant impact
on the operations of TACTech.

IMPACT OF YEAR 2000

    EVALUATION EFFORTS

    TACTech has finished its assessment and upgrade of all systems that could be
affected by the Year 2000 problem. This includes software developed specifically
for license or sale, software developed for in-house use, third-party software
and hardware used by TACTech, and telecommunications systems. TACTech did not
experience any significant Year 2000 related problem through February 29, 2000.
Additional testing however, will continue on these systems as a safety
precaution.

    In addition, TACTech gathered and is continuing to gather Year 2000
compliance information from its significant vendors, suppliers and customers.

    READINESS AND COMPLIANCE PLAN

    TACTech's Year 2000 compliance efforts fell into four major areas:
Information Technology (including production software, internal software and
hardware), Telecommunications Systems, Compliance by Vendors, and Compliance by
Customers.

    INFORMATION TECHNOLOGY:

    PRODUCTION SOFTWARE--TACTRAC AND TACTECH BASIC SITE SERVICES

    TACTech currently markets information services based on two different sets
of software, one relating to the TACTRAC service, and one relating to TACTech's
basic library service.

    TACTRAC--TACTech completed an evaluation of the TACTRAC software for Year
2000 readiness and believes that, having made necessary upgrades, the TACTRAC
software is fully Year 2000 compliant.

    Basic Library Services--TACTech has evaluated its basic library services
software for Year 2000 readiness and believes that, having made necessary
upgrades, the software is fully Year 2000 compliant.

    INTERNAL IT SYSTEMS

    TACTech has evaluated all of its internal IT Systems software and has
performed the necessary upgrades or modifications to ensure that 100% of its
systems are fully Year 2000 compliant.

    TACTech has evaluated all of its internal IT Systems hardware that are
critical for continued business operations and has determined that it falls into
the following categories:

    a)  Approximately 80% of its hardware is fully Year 2000 compliant.

                                       59
<PAGE>
    b)  Approximately 20% of its hardware was not fully Year 2000 compliant
       prior to December 31, 1999 and required manually setting the date to
       January 1, 2000. For continued business operations, this equipment is
       considered to be Year 2000 compliant.

    TELECOMMUNICATIONS SYSTEMS

    In early January 1999, TACTech replaced its PBX telephone system and its
voice mail at Yorba Linda system with new models that are fully Year 2000
compliant. The Year 2000 compliance status of TACTech's San Diego and Valhalla
telephone systems is unknown and cannot be assured to be fully Year 2000
compliant. Nevertheless, these systems are not material to TACTech and have not
experienced any service interruptions since January 1, 2000.

    VENDOR COMPLIANCE

    TACTech actively requested Year 2000 compliance certificates from its
vendors. Most vendors reported that they were or would timely be Year 2000
complaint, including all those who could materially harm TACTech's business.
Since January 1, 2000, TACTech has not experienced any Year 2000 related
problems with its important vendors.

    CUSTOMER COMPLIANCE

    TACTech also requested similar compliance certifications from its customers.
To date, TACTech has received responses from [60%] of its customers. TACTech
cannot guarantee that all of its customers are either Year 2000 compliant, or
will comply with TACTech's request for certification.

COST OF YEAR 2000 COMPLIANCE

    TACTech estimates that the total cost of achieving Year 2000 compliance was
approximately $20,000. The bulk of these costs were for new versions and
upgrades to software and operating systems and telephone equipment. Personnel
and labor costs are included in salaries and are not included in this total. In
addition, other software and operating system upgrades are already paid for by
ongoing maintenance contracts and are not included in the above total.

CONTINGENCY PLAN

    Since TACTech believes that its production software, hardware information
technology systems and telecommunications systems are Year 2000 compliant, and
TACTech has not experienced any interruptions in data acquisition, processing or
delivery since January 1, 2000 and does not anticipate any billing or collection
problems as a result of the advent of the new century, TACTech has not developed
a contingency plan for any Year 2000 non-compliance. It also had not developed a
contingency plan if utility or other vendors are unable to render adequate
service.

                                       60
<PAGE>
          UNAUDITED PRO FORMA COMBINED CONDENSED FINANCIAL INFORMATION

    The following unaudited pro forma combined condensed financial statements
give effect to the acquisition by Aspect of all outstanding shares of TACTech in
a transaction accounted for as a purchase.

    The pro forma combined condensed statement of operations of Aspect for the
twelve months ended December 31, 1999 assumes that the acquisition of TACTech
took place as of the beginning of fiscal 1999. The statement combines Aspect's
consolidated statement of operations for the twelve months ended December 31,
1999, and TACTech's condensed consolidated statements of operations for the six
month period ended December 31, 1999 combined with the six month period ended
June 30, 1999.

    The pro forma combined condensed balance sheet as of December 31, 1999
combines Aspect's December 31, 1999 consolidated balance sheet with TACTech's
December 31, 1999 condensed consolidated balance sheet as if the acquisition had
been consummated on that date.

    The unaudited pro forma combined condensed information is presented for
illustrative purposes only and is not necessarily indicative of the operating
results or financial position that would have actually occurred if the
acquisition had been consummated as of the dates indicated, nor is it
necessarily indicative of future operating results or financial position. The
pro forma adjustments are based on the information available at the date of this
proxy statement/prospectus and are subject to change based upon completion of
the transaction and final purchase price allocation, including completion of
third party appraisals.

    Aspect's condensed consolidated financial information included in these pro
forma financial statements is derived from its December 31, 1999 audited
consolidated financial statements incorporated by reference in this proxy
statement/prospectus. TACTech's condensed balance sheet included in the
accompanying pro forma unaudited combined condensed balance sheet is derived
from its unaudited historical condensed consolidated financial statements as of
December 31, 1999 included in this proxy statement/ prospectus. The results of
operations for TACTech included in the unaudited pro forma condensed combined
statement of operations for the year ended December 31, 1999 were derived from
its unaudited financial statements for the same period.

    The unaudited condensed financial information of TACTech has been prepared
in accordance with generally accepted accounting principles applicable to
interim financial information and, in the opinion of TACTech's management,
includes all adjustments necessary for a fair presentation of the financial
information for such interim periods.

                                       61
<PAGE>
              PRO FORMA UNAUDITED COMBINED CONDENSED BALANCE SHEET

                            AS OF DECEMBER 31, 1999

                                 (IN THOUSANDS)

<TABLE>
<CAPTION>
                                                                          PRO FORMA         PRO FORMA
                                                    ASPECT    TACTECH    ADJUSTMENTS        COMBINED
                                                   --------   --------   -----------        ---------
<S>                                                <C>        <C>        <C>                <C>
ASSETS
Current assets
  Cash and cash equivalents......................  $ 28,872    $  420      $    --          $ 29,292
  Short term investments.........................    47,332        --           --            47,332
  Accounts receivable, net.......................    28,709       945           --            29,654
  Prepaid expenses and other current assets......    15,884       125           --            16,009
                                                   --------    ------      -------          --------
  Total current assets...........................   120,797     1,490           --           122,287
Property and equipment, net......................    12,342       234           --            12,576
Other assets.....................................     2,765       152           --             2,917
Goodwill and purchased intangibles...............        --        --       13,885 (A)        13,885
                                                   --------    ------      -------          --------
  Total assets...................................  $135,904    $1,876      $13,885          $151,665
                                                   ========    ======      =======          ========
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities
  Accounts payable...............................  $  3,221    $  417      $    --          $  3,638
  Accrued compensation expense...................     7,266       125           --             7,391
  Accrued income taxes...........................     3,863        98           --             3,961
  Other accrued..................................     9,191        --          200 (B)         9,391
  Deferred revenue...............................    13,584       681           --            14,265
  Revolving line of credit.......................        --       670           --               670
                                                   --------    ------      -------          --------
  Total current liabilities......................    37,125     1,991          200            39,316
                                                   --------    ------      -------          --------
Stockholders' equity
  Common stock...................................    90,929       559       15,441 (B)       112,929
  Deferred compensation..........................       (43)       --           --               (43)
  Unrealized loss on investments.................       (35)       --           --               (35)
  Accumulated transition adjustment..............       159        --           --               159
  Accumulated deficit............................     1,769      (674)      (1,756)(B)          (661)
                                                   --------    ------      -------          --------
  Total stockholders' equity.....................    98,779      (115)      13,685           112,349
                                                   --------    ------      -------          --------
  Total liabilities and stockholders' equity.....  $135,904    $1,876      $13,885          $151,665
                                                   ========    ======      =======          ========
</TABLE>

                                       62
<PAGE>
        PRO FORMA UNAUDITED COMBINED CONDENSED STATEMENTS OF OPERATIONS

                          YEAR ENDED DECEMBER 31, 1999

                    (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)

<TABLE>
<CAPTION>
                                                                              PRO FORMA    PRO FORMA
                                                        ASPECT    TACTECH    ADJUSTMENTS   COMBINED
                                                       --------   --------   -----------   ---------
<S>                                                    <C>        <C>        <C>           <C>
Revenues:
  Licenses...........................................  $52,440     $4,894      $    --      $57,334
  Subscription and maintenance.......................   24,514         --           --       24,514
  Service and other..................................   18,191         --           --       18,191
                                                       -------     ------      -------      -------
  Total revenues.....................................   95,145      4,894           --      100,039
                                                       -------     ------      -------      -------
Cost of revenues:
  Licenses...........................................    1,152         --           --        1,152
  Subscriptions and maintenance......................    5,278         --           --        5,278
  Service and other..................................    9,120         --           --        9,120
                                                       -------     ------      -------      -------
  Total cost of revenues.............................   15,550         --           --       15,550
                                                       -------     ------      -------      -------
  Gross profit.......................................   79,595      4,894           --       84,489
                                                       -------     ------      -------      -------
Operating expenses:
  Research and development...........................   20,061        999           --       21,060
  Sales and marketing................................   44,625      1,548           --       46,173
  General and administrative.........................   11,136      2,065           --       13,201
  Amortization of goodwill...........................       --         --        2,777        2,777
                                                       -------     ------      -------      -------
  Total operating expenses...........................   75,822      4,612        2,777       83,211
                                                       -------     ------      -------      -------
  Operating income (loss)............................    3,773        282       (2,777)       1,278
Interest and other income, net.......................    6,238        (56)          --        6,182
                                                       -------     ------      -------      -------
  Income before income taxes.........................   10,011        226       (2,777)       7,460
Provision for income taxes...........................    2,212         94           --        2,306
                                                       -------     ------      -------      -------
  Net income.........................................  $ 7,799     $  132      $(2,777)     $ 5,154
                                                       =======     ======      =======      =======
Basic earnings per share.............................  $  0.13     $ 0.22                   $  0.09
                                                       =======     ======                   =======
Diluted earnings per share...........................  $  0.12     $ 0.21                   $  0.08
                                                       =======     ======                   =======
Shares used in computing basic earnings per share....   58,726        599                    59,122
                                                       =======     ======                   =======
Shares used in computing diluted earnings per
  share..............................................   66,180        625                    66,616
                                                       =======     ======                   =======
</TABLE>

                                       63
<PAGE>
                        NOTES TO THE UNAUDITED PRO FORMA
                    COMBINED CONDENSED FINANCIAL INFORMATION

    The total purchase price of TACTech reflects the issuance of approximately
396,000 shares of Aspect common stock and the assumption of options to purchase
approximately 54,000 shares of Aspect common stock. The total purchase price was
determined as follows (in thousands):

<TABLE>
<S>                                                           <C>
Value of Aspect common stock and options....................  $16,000
Other direct acquisition expenses...........................      200
                                                              -------
                                                              $16,200
                                                              =======
</TABLE>

    The valuation of the Aspect common stock is based on its weighted average
closing price three days prior to and three days following the announcement of
the acquisition. The valuation of options to purchase Aspect common stock is
based upon the Black-Scholes valuation model.

    The total purchase price of the TACTech acquisition has been allocated to
acquired assets based on estimates of their fair values. The purchase price of
approximately $16.2 million has been assigned to the assets acquired as follows
(in thousands):

<TABLE>
<S>                                                           <C>
Tangible net liabilities assumed............................  $  (115)
Acquired in process research and development................    2,430
Goodwill....................................................   13,885
                                                              -------
                                                              $16,200
                                                              =======
</TABLE>

    Aspect expects to allocate approximately $2.43 million of the purchase price
to TACTech's in-process research and development, which will be expensed upon
consummation of the merger as it has not reached technological feasibility and,
in the opinion of management, has no alternative future use. The estimated
amount is subject to adjustment based upon completion of third party appraisals.
This amount has not been reflected in the accompanying pro forma statements of
operations as it is a non-recurring charge, but has been reflected as an
adjustment to accumulated deficit in the accompanying pro forma balance sheet.

    The adjustments to the pro forma combined condensed balance sheet as of
December 31, 1999 are as follows:

    (A) To reflect goodwill and other intangibles of approximately $14 million
       resulting from the acquisition of TACTech.

    (B) To reflect the purchase price paid as follows: issuance of Aspect's
       common stock and options valued at approximately $16 million and
       acquisition-related expenses of approximately $200,000.

    The adjustment to the pro forma combined condensed statement of operations
for the year ended December 31, 1999 assumes the acquisition occurred as of
January 1, 1999 and reflects the amortization of approximately $14 million of
estimated goodwill and other intangibles resulting from the acquisition. The
intangible assets will be amortized ratably over an estimated useful life of
five years.

                                       64
<PAGE>
                                 LEGAL MATTERS

    Certain tax consequences of the merger and the validity of the Aspect common
stock to be issued in the merger will be passed upon for Aspect by Cooley
Godward. Certain legal matters in connection with the merger and the tax
consequences to TACTech and its stockholders in connection with the merger will
be passed upon by Morrison Cohen, counsel to TACTech.

                                  ACCOUNTANTS

    Ernst & Young LLP have been TACTech's independent public accountants since
1997. Representatives of Ernst & Young LLP are expected to attend the special
meeting but are not expected to make a statement. They will, however, be
available to answer appropriate questions.

                                    EXPERTS

    The consolidated financial statements of Transition Analysis Component
Technology, Inc. at June 30, 1999 and 1998, and for each of the two years in the
period ended June 30, 1999, included in the Proxy Statement of Transition
Analysis Component Technology Inc., which is referred to and made a part of this
Prospectus and Registration Statement, have been audited by Ernst & Young LLP,
independent auditors, as set forth in their report appearing elsewhere herein,
and are included in reliance upon such report given on the authority of such
firm as experts in accounting and auditing.

    The consolidated financial statements of Aspect Development, Inc.
incorporated by reference to the Annual Report on Form 10-K (as amended) for the
fiscal years ended December 31, 1999 and 1998 in this proxy statement/prospectus
and elsewhere in the registration statement have been audited by Arthur Andersen
LLP, independent public accountants, as indicated in their report with respect
thereto, and are incorporated by reference herein in reliance upon the authority
of said firm as experts in giving said report.

    The consolidated financial statements of Aspect Development, Inc. for the
year ended December 31, 1997 appearing in Aspect Development Inc.'s Annual
Report (Form 10-K) for the year ended December 31, 1999, have been audited by
Ernst & Young LLP, independent auditors, to the extent indicated in their report
thereon included therein and incorporated herein by reference. Such consolidated
financial statements are incorporated herein by reference in reliance upon such
report given on the authority of such firm as experts in accounting and
auditing.

                     STOCKHOLDER PROPOSALS AT THE COMPANY'S
                      NEXT ANNUAL MEETING OF STOCKHOLDERS

    Any stockholder of TACTech who intends to submit a proposal to TACTech's
stockholders at TACTech's next annual meeting of stockholders (if the merger is
not approved) must submit such proposal to TACTech no later than August 14,
2000, 120 days before the anticipated date of mailing of the Proxy Statement for
such meeting. Stockholder proposals should be submitted to TACTech, ATTN:
Deborah J. Schrader, Secretary.

    Stockholders are advised that TACTech's management will be permitted to
exercise discretionary voting authority under proxies it solicits and obtains
for the next annual meeting of stockholders (if the merger is not approved) with
respect to any proposal presented by a stockholder at such meeting, without any
discussions of the proposal in TACTech's proxy statement for such meeting,
unless TACTech receives notice of such proposal at its principal office in Yorba
Linda, California, not later than October 30, 2000.

                                       65
<PAGE>
                      WHERE YOU CAN FIND MORE INFORMATION

    TACTech and Aspect are each subject to the informational requirements of the
Securities Exchange Act of 1934 and, in accordance therewith, file reports,
proxy statements and other information with the SEC. The reports, proxy
statements and other information filed by TACTech and Aspect with the SEC can be
inspected and copied at the public reference facilities maintained by the SEC at
Room 1024, 450 Fifth Street, N.W., Washington, D.C. 20549, and at the SEC
Regional Offices located at 7 World Trade Center, 13th floor, New York, New York
10048 and 500 West Madison Street, Suite 1400, Chicago, Illinois 60661. Copies
of such material also can be obtained at prescribed rates from the Public
Reference Section of the SEC at 450 Fifth Street, Washington, D.C. 20549.
Information regarding the Public Reference Room may be obtained by calling the
SEC at (800) 732-0330. In addition, TACTech and Aspect are each required to file
electronic versions of such material with the SEC through the SEC's Electronic
Data Gathering, Analysis and Retrieval (EDGAR) system. The SEC maintains a World
Wide Web site at http://www.sec.gov that contains reports, proxy and information
statements and other information regarding registrants that file electronically
with the SEC.

    Aspect has filed with the SEC a Registration Statement on Form S-4 under the
Exchange Act with respect to the shares of Aspect stock to be issued pursuant to
the merger agreement of which this proxy statement/prospectus is a part.

    The SEC allows Aspect to "incorporate by reference" information into this
Proxy Statement/ Prospectus, which means that Aspect can disclose important
information to you by referring you to another document filed separately with
the SEC. Statements contained in this Proxy Statement/Prospectus or in any
document incorporated by reference in this Proxy Statement/Prospectus as to the
contents of any contract or other document referred to herein or therein are not
necessarily complete, and in each instance reference is made to the copy of such
contract or other document filed as an exhibit to the Registration Statement on
Form S-4 or such other document, each such statement being qualified in all
respects by such reference. The information incorporated by reference is deemed
to be part of this Proxy Statement/ Prospectus. This Proxy Statement/Prospectus
incorporates by reference the documents set forth below that Aspect has
previously filed with the SEC. These documents contain important information
about Aspect and its finances.

ASPECT FILING (FILE NO. 000-20749)

    - Annual Report on Form 10-K (as amended) for the year ended December 31,
      1999.

    TACTech and Aspect hereby incorporate by reference additional documents that
TACTech and Aspect may file with the SEC between the date of this proxy
statement/prospectus and the date of the special meeting. These include periodic
reports, such as annual reports on Form 10-K, quarterly reports on Form 10-Q and
current reports on Form 8-K, as well as proxy statements.

    Aspect has supplied all information contained or incorporated by reference
in this proxy statement/ prospectus relating to Aspect or Asta Merger Sub, and
TACTech has supplied all information relating to TACTech.

    Documents incorporated by reference are available from Aspect without
charge, excluding all exhibits unless specifically incorporated by reference as
an exhibit in this proxy statement/prospectus. Stockholders may obtain documents
incorporated by reference in this proxy statement/prospectus by requesting them
in writing or by telephone from Aspect at the following addresses:

                            Aspect Development, Inc.
                              1395 Charleston Road
                        Mountain View, California 94043
                         Attention: Investor Relations
                                 (650) 428-2700

                                       66
<PAGE>
    If you would like to request documents, please do so by [April 15], 2000 to
receive them before the special meeting.

    YOU SHOULD RELY ONLY ON THE INFORMATION CONTAINED OR INCORPORATED BY
REFERENCE IN THIS PROXY STATEMENT/ PROSPECTUS TO VOTE YOUR SHARES AT THE SPECIAL
MEETING. WE HAVE NOT AUTHORIZED ANYONE TO PROVIDE YOU WITH INFORMATION THAT
DIFFERS FROM THAT CONTAINED IN THIS PROXY STATEMENT/PROSPECTUS. THIS PROXY
STATEMENT/ PROSPECTUS IS DATED APRIL   , 2000. YOU SHOULD NOT ASSUME THAT THE
INFORMATION CONTAINED IN THIS PROXY STATEMENT/PROSPECTUS IS ACCURATE AS OF ANY
DATE OTHER THAN THAT DATE, AND NEITHER THE MAILING OF THIS PROXY
STATEMENT/PROSPECTUS TO STOCKHOLDERS NOR THE ISSUANCE OF SHARES OF ASPECT COMMON
STOCK IN THE MERGER SHALL CREATE ANY IMPLICATION TO THE CONTRARY.

    Aspect, the Aspect logos and all other Aspect product and service names are
registered trademarks or trademarks of Aspect Development, Inc. in the USA and
in other select countries. TACTech, the TACTech logos and all other TACTech
product and service names are registered trademarks or trademarks of Transition
Analysis Component Technology, Inc. "-Registered Trademark-" and "-TM-" indicate
USA registration and USA trademark, respectively. Other third party logos and
product/trade names are registered trademarks or trade names of their respective
companies.

                                 OTHER MATTERS

    TACTech's management knows of no other matters to be presented at the
Meeting. If any other matter does properly come before the Meeting, appointees
named in proxies will vote the proxies in accordance with their best judgment.

                                          By Order of the Board of Directors
                                                 Deborah J. Schrader
                                                      Secretary

Dated:  Yorba Linda, California
      April   , 2000

                                       67
<PAGE>
ITEM 7--FINANCIAL STATEMENTS

                 TRANSITION ANALYSIS COMPONENT TECHNOLOGY, INC.

                         INDEX TO FINANCIAL STATEMENTS

                       YEARS ENDED JUNE 30, 1999 AND 1998

<TABLE>
<CAPTION>
                                                                PAGE
                                                              --------
<S>                                                           <C>
Report of Independent Auditors..............................    F-2

Audited Consolidated Financial Statements

Consolidated Balance Sheets.................................    F-3

Consolidated Statements of Operations.......................    F-4

Consolidated Statements of Stockholders' Equity
  (Deficiency)..............................................    F-5

Consolidated Statements of Cash Flows.......................    F-6

Notes to Consolidated Financial Statements..................    F-7
</TABLE>

                                      F-1
<PAGE>
                         REPORT OF INDEPENDENT AUDITORS

To the Stockholders and Directors of
Transition Analysis Component Technology, Inc.

    We have audited the accompanying consolidated balance sheets of Transition
Analysis Component Technology, Inc. ("TACTech") as of June 30, 1999 and 1998,
and the related consolidated statements of operations, stockholders' equity
(deficiency) and cash flows for the years then ended. These financial statements
are the responsibility of the Company's management. Our responsibility is to
express an opinion on these financial statements based on our audits.

    We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

    In our opinion, the financial statements referred to above present fairly,
in all material respects, the consolidated financial position of TACTech as of
June 30, 1999 and 1998, and the consolidated results of its operations and its
cash flows for the years then ended in conformity with generally accepted
accounting principles.

                                        ERNST & YOUNG LLP

White Plains, New York
September 24, 1999

                                      F-2
<PAGE>
                 TRANSITION ANALYSIS COMPONENT TECHNOLOGY, INC.

                          CONSOLIDATED BALANCE SHEETS

<TABLE>
<CAPTION>
                                                                      JUNE 30
                                                              -----------------------
                                                                 1999         1998
                                                              ----------   ----------
<S>                                                           <C>          <C>
ASSETS
Current assets:
  Cash......................................................  $  212,188   $  120,204
  Accounts receivable, less allowance of $40,000 in 1999 and
    $20,000 in 1998.........................................     960,086      754,442
  Prepaid expenses and other current assets.................      60,560       63,593
  Deferred tax asset........................................      98,000           --
                                                              ----------   ----------
Total current assets........................................   1,330,834      938,239

Furniture and equipment.....................................     758,341      669,056
Less: accumulated depreciation..............................     497,423      407,031
                                                              ----------   ----------
                                                                 260,918      262,025

Other assets:
  Security deposits.........................................      83,379       81,723
  Software development costs-net............................      47,106       59,946
    Excess of costs over fair value of net assets acquired,
      net of accumulated amortization of $10,323............      45,983       51,614
                                                              ----------   ----------
Total assets................................................  $1,768,220   $1,393,547
                                                              ==========   ==========

LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIENCY) CURRENT
  LIABILITIES:
  Accounts payable and accrued expenses.....................  $  315,890   $  411,225
  Accrued compensation expense..............................     373,384      332,257
  Accrued income taxes......................................      98,000           --
  Deferred income...........................................     531,080      300,683
  Revolving line of credit..................................     570,000           --
                                                              ----------   ----------
Total current liabilities...................................   1,888,354    1,044,165

Long-term obligation--revolving line of credit..............          --      620,000

Contingencies (Note 10)
Stockholders' equity (deficiency):
  Common stock (par value $.01 per share); Authorized
    5,000,000 as of June 30, 1999 and June 30, 1998; issued
    598,734 as of June 30, 1999 and June 30, 1998...........       5,987        5,987
  Additional paid-in capital................................     552,779      552,779
  Accumulated deficit.......................................    (678,900)    (829,384)
                                                              ----------   ----------
Total stockholders' equity (deficiency).....................    (120,134)    (270,618)
                                                              ----------   ----------
Total liabilities and stockholders' equity (deficiency).....  $1,768,220   $1,393,547
                                                              ==========   ==========
</TABLE>

                            See accompanying notes.

                                      F-3
<PAGE>
                 TRANSITION ANALYSIS COMPONENT TECHNOLOGY, INC.

                     CONSOLIDATED STATEMENTS OF OPERATIONS

<TABLE>
<CAPTION>
                                                                YEAR ENDED JUNE 30
                                                              -----------------------
                                                                 1999         1998
                                                              ----------   ----------
<S>                                                           <C>          <C>
Revenues....................................................  $4,512,274   $3,482,788
Selling, general and administrative expenses................   4,189,512    4,087,410
Depreciation of equipment...................................      90,391       73,303
Amortization of software development costs and acquisition
  costs.....................................................      18,471       15,392
Interest expense............................................      63,416       41,683
                                                              ----------   ----------
Income (loss) before income taxes...........................     150,484     (735,000)
Provision for income taxes..................................          --           --
                                                              ----------   ----------
Net income (loss)...........................................  $  150,484   $ (735,000)
                                                              ==========   ==========
Net income (loss) per common share-basic....................  $     0.25   $    (1.25)
                                                              ==========   ==========
Net income (loss) per common share-diluted..................  $     0.24   $    (1.25)
                                                              ==========   ==========
Average number of outstanding shares-basic..................     598,734      586,106
                                                              ==========   ==========
Average number of outstanding shares-diluted................     621,434      586,106
                                                              ==========   ==========
</TABLE>

                            See accompanying notes.

                                      F-4
<PAGE>
                 TRANSITION ANALYSIS COMPONENT TECHNOLOGY, INC.

          CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (DEFICIENCY)

<TABLE>
<CAPTION>
                                                                                            TOTAL
                                                             ADDITIONAL                 STOCKHOLDERS'
                                                  COMMON      PAID-IN     ACCUMULATED      EQUITY
                                                   STOCK      CAPITAL       DEFICIT     (DEFICIENCY)
                                                 ---------   ----------   -----------   -------------
<S>                                              <C>         <C>          <C>           <C>
  Balance at June 30, 1997 prior to
    distribution...............................  $     152   $ 554,571     $ (94,384)     $ 460,339
  Stock split..................................      5,386      (5,386)                          --
  Costs in connection with the distribution of
    stock......................................               (108,218)                    (108,218)
  Balance at June 30, 1997.....................      5,538     440,967       (94,384)       352,121
  Shares issued in RAC acquisition (Note 1)....        449     111,812                      112,261
Net loss.......................................                             (735,000)      (735,000)
                                                 ---------   ---------     ---------      ---------
Balance at June 30, 1998.......................      5,987     552,779      (829,384)      (270,618)
Net income.....................................                              150,484        150,484
                                                 ---------   ---------     ---------      ---------
Balance at June 30, 1999.......................  $   5,987   $ 552,779     $(678,900)     $(120,134)
                                                 =========   =========     =========      =========
</TABLE>

                            See accompanying notes.

                                      F-5
<PAGE>
                 TRANSITION ANALYSIS COMPONENT TECHNOLOGY, INC.

                     CONSOLIDATED STATEMENTS OF CASH FLOWS

<TABLE>
<CAPTION>
                                                               YEAR ENDED JUNE 30
                                                              ---------------------
                                                                1999        1998
                                                              ---------   ---------
<S>                                                           <C>         <C>
Operating activities
Net income (loss)...........................................  $ 150,484   $(735,000)
Adjustments to reconcile net income (loss) to net cash
  provided by (used in) operating activities:
    Depreciation............................................     90,392      73,303
    Amortization............................................     18,471      15,392
    Provision for losses in accounts receivable.............     20,000      15,000
    Deferred taxes..........................................    (98,000)         --
    Changes in operating assets and liabilities:
      Accounts receivable...................................   (225,644)   (261,711)
      Prepaid expenses and other current assets.............      3,033     (52,893)
      Accounts payable and accrued expenses.................    (95,335)    227,102
      Accrued compensation..................................     41,127     233,951
      Accrued income taxes..................................     98,000          --
      Accrued income tax due former parent company..........         --    (169,815)
      Deferred income.......................................    230,397     220,778
      Security deposits.....................................     (1,656)    (80,357)
                                                              ---------   ---------
Net cash provided by (used in) operating activities.........    231,269    (514,250)
Investing activities
Cost related to RAC acquisition, net of cash received.......         --      11,448
Purchases of equipment......................................    (89,285)   (119,176)
Additions to software development...........................         --     (10,726)
                                                              ---------   ---------
Net cash used in investing activities.......................    (89,285)   (118,454)
                                                              ---------   ---------
Financing activities
Proceeds from line of credit................................    225,000     620,000
Reduction of borrowings.....................................   (275,000)         --
                                                              ---------   ---------
Net cash provided by (used in) financing activities.........    (50,000)    620,000
                                                              ---------   ---------
Net increase (decrease) in cash.............................     91,984     (12,704)
Cash at beginning of year...................................    120,204     132,908
                                                              ---------   ---------
Cash at end of year.........................................  $ 212,188   $ 120,204
                                                              =========   =========
</TABLE>

                            See accompanying notes.

                                      F-6
<PAGE>
                 TRANSITION ANALYSIS COMPONENT TECHNOLOGY, INC.

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                                 JUNE 30, 1999

1.  ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

ORGANIZATION

    Prior to June 30, 1997, Transition Analysis Component Technology, Inc.
("TACTech" or the "Company") was a 90% owned subsidiary of Zing Technologies,
Inc. ("Zing"), the Company's former parent, and the remaining 10% was owned by
one officer of the Company. TACTech is located in Yorba Linda, California.

    The Company filed a registration statement on Form SB-1, which became
effective June 30, 1997, for the purpose of distributing the Common Stock of the
Company which was owned by Zing to the shareholders of Zing (the
"Distribution"). In connection with the Distribution, the Common Stock
authorized and outstanding was split on approximately a 36.436-for-one basis.

    Also, in connection with the Distribution, intercompany advances (excluding
income taxes) as of the effective date of the Distribution were converted to
equity and, accordingly, were included within additional paid-in capital.

    As of the date of the Distribution, the Company engaged certain employees of
Zing (with the permission of Zing) on a part-time basis to render to the Company
the following services for a cost not to exceed $100,000 per year including: to
advise in the development of the Company's business plan, to advise the Company
with respect to and to negotiate agreements on the Company's behalf, to
coordinate communications with the Company's stockholders, to advise the Company
with respect to and to negotiate acquisitions and financing, to prepare and file
the Company's tax returns and reports required by applicable securities laws and
rules of applicable stock exchanges, to review and supervise the Company's
accounting department and systems from time to time and suggest revisions and
changes thereto, and to perform such further services as such employees may
agree.

ACQUISITION OF RESEARCH ANALYSIS CORP.

    On September 22, 1997, TACTech acquired the net assets of Research Analysis
Corp. ("RAC"), consisting primarily of search and report software pursuant to a
merger (the "Merger") of TACTech's newly formed and wholly-owned subsidiary,
with and into RAC. Upon consummation of the Merger, RAC, as the surviving
corporation, became a wholly-owned subsidiary of the Company. Pursuant to the
Merger, the sole shareholders of RAC exchanged all their shares in RAC common
stock for 44,904 unregistered shares of common stock in the Company. The cost of
the acquisition, including the shares given, was approximately $193,000. As a
result of this transaction, the Company recorded approximately $56,000 of costs
in excess of fair value of net assets acquired, which is being amortized over 10
years. The RAC acquisition was accounted for pursuant to the purchase method of
accounting and is effective as of September 1, 1997.

                                      F-7
<PAGE>
                 TRANSITION ANALYSIS COMPONENT TECHNOLOGY, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                                 JUNE 30, 1999

1.  ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
    The purchased net assets of RAC were allocated as follows:

<TABLE>
<S>                                                           <C>
Cash........................................................  $ 45,400
Accounts receivable, net....................................    88,400
Furniture and equipment.....................................    26,000
Other assets................................................    61,300
Excess of costs over fair value of net assets acquired......    56,300
Accounts payable and accrued expenses.......................   (84,400)
                                                              --------
                                                              $193,000
                                                              ========
</TABLE>

    The following unaudited pro forma information has been prepared assuming
that this acquisition had taken place at the beginning of the fiscal year 1998
after giving effect to pro forma adjustments for compensation accruals and
income taxes. The number of shares used in the computations of net loss per
common share is 598,734.

<TABLE>
<CAPTION>
                                                               YEAR ENDED
                                                              JUNE 30, 1998
                                                              -------------
<S>                                                           <C>
Revenue.....................................................   $3,565,855
Net (loss) income...........................................   $ (775,000)
Net (loss) income per common share--basic and diluted.......   $    (1.29)
</TABLE>

GENERAL BUSINESS DESCRIPTION

    TACTech is a semiconductor information service provider which licenses
proprietary computer software tools combined with electronic semiconductor
availability libraries and data bases that are utilized by various segments of
the Department of Defense, the defense/aerospace industry, and industrial users
of high reliability semiconductors and manufacturers and distributors of high
reliability and military grade semiconductors. The Company operates as one
business segment.

    RAC principally derived revenues from consulting services and
customer-specific projects under cost plus fixed fee contracts with the
Department of Defense and government contractors related specifically to
training services, engineering support and logistics support. These contractual
services deal with issues of reliability, maintainability, failure analyses,
reliability predictions, circuit card redesign, provisioning and weapons system
file data extraction. Since the acquisition of RAC by TACTech, RAC has continued
to refine (and commenced marketing) "TACTRAC" developed to adapt RAC's component
analysis technology, used in connection with RAC's consulting services, to
TACTech's component data base technology.

REVENUE RECOGNITION AND CONCENTRATION OF CREDIT RISK

    Revenue from the Company's basic library subscription service is recognized
monthly. Revenue from the enhanced TACTRAC Health Model is recognized as
follows: Fees for the installation and delivery of the database information and
workstation software into a customer server are recognized upon completion of
the installation and are non-refundable. Fees for additional concurrent user
stations are similarly recognized upon installation. Revenue from one customer
was 10% of total revenue for 1999. Revenues from no one customer exceeded 10% of
total revenue for 1998. U.S. government agencies accounted for

                                      F-8
<PAGE>
                 TRANSITION ANALYSIS COMPONENT TECHNOLOGY, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                                 JUNE 30, 1999

1.  ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
approximately 16% of revenues for 1999. Sales to foreign customers, primarily
located in Europe, accounted for approximately 15% of revenue for 1999.

FURNITURE AND EQUIPMENT

    Furniture and equipment is stated at cost and is depreciated using the
straight-line method over five years.

SOFTWARE DEVELOPMENT COSTS

    The Company begins capitalizing software development costs only after
establishing commercial and technical viability. Software development costs are
amortized using the straight line method over the remaining estimated economic
life of the product, generally five years. Accumulated amortization of software
development costs was $23,540 and $10,700 at June 30, 1999 and 1998,
respectively.

ADVERTISING COSTS

    Advertising costs are charged to expense in the year incurred and totaled
$96,600 and $8,500 for the years ended June 30, 1999 and 1998, respectively.

USE OF ESTIMATES

    The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the amounts reported in the financial statements and
accompanying notes. Actual results could differ from those estimates.

FAIR VALUE OF FINANCIAL INFORMATION

    The carrying amounts of cash, accounts receivable, accounts payable and
accrued expenses reasonably approximate fair value due to the short maturity of
these items. The carrying value of the Company's borrowings under its revolving
line of credit, approximates fair value, as the obligation bears interest at a
floating rate.

NET INCOME (LOSS) PER COMMON SHARE

    Basic income (loss) per share is calculated by dividing net income (loss) by
the weighted-average number of common shares outstanding during the period. The
diluted income (loss) per share computation includes the dilutive effect, if
any, of shares which would be issuable upon the exercise of outstanding stock
options, reduced by the number of shares assumed to be purchased by the Company
from the resulting proceeds at the average market price during the period.

IMPAIRMENTS

    The Company records impairment losses on long-lived assets when events and
circumstances indicate that the assets might be impaired and the undiscounted
cash flows estimated to be generated by those assets are less than the carrying
amount of those assets. There have been no such impairment losses through June
30, 1999.

                                      F-9
<PAGE>
                 TRANSITION ANALYSIS COMPONENT TECHNOLOGY, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                                 JUNE 30, 1999

1.  ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
STOCK-BASED COMPENSATION

    The Company applies the recognition and measurement provisions of Accounting
Principles Board (APB) Opinion No. 25, "Accounting for Stock Issued to
Employees," and the disclosure provisions of Statement of Financial Accounting
Standards (SFAS) No. 123, "Accounting for Stock-Based Compensation," in
reporting for stock options.

2.  AGREEMENTS

    In April 1993, TACTech entered into a three-year exclusive licensing
agreement with a distributor of electronic components at an annual rate of
$108,000 and this agreement was amended in May 1993 with an expiration date of
June 1998 and the annual rate was increased to $200,000 effective July 1995. As
of July 1, 1998, the annual rate was increased to $230,000 and the term extended
one year to June 30, 1999. The agreement was extended effective July 1, 1999 to
December 31, 2000 at the same rate of $230,000. TACTech has agreed that during
the term of this agreement it would not grant or authorize any other party
access to its data bases or services if such party were in the business of
distributing electronic component parts.

3.  INCOME TAXES

    Through the date of the Distribution, the Company filed a consolidated
federal tax return with its former parent, Zing. Income taxes were computed on a
separate company basis pursuant to the liability method. As a result of the
Distribution, the Company will file its own separate tax returns for fiscal
years 1999 and 1998.

    The Company records income taxes under the liability method of accounting.
Deferred taxes are provided for temporary differences between the carrying
amount of assets and liabilities for financial reporting purposes and amounts
used for income tax purposes. Deferred tax assets and liabilities are recorded
at the rates expected to be in effect when the temporary differences reverse.

    The provision for income taxes is as follows:

<TABLE>
<CAPTION>
                                                           YEAR ENDED JUNE 30,
                                                           -------------------
                                                             1999       1998
                                                           --------   --------
<S>                                                        <C>        <C>
Current
  Federal................................................  $ 77,000   $    --
  State..................................................    21,000        --
                                                           --------   -------
                                                             98,000
                                                           --------   -------
Deferred
  Federal................................................   (77,000)       --
  State..................................................   (21,000)       --
                                                           --------   -------
                                                            (98,000)       --
                                                           --------   -------
                                                           $     --   $    --
                                                           ========   =======
</TABLE>

                                      F-10
<PAGE>
                 TRANSITION ANALYSIS COMPONENT TECHNOLOGY, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                                 JUNE 30, 1999

3.  INCOME TAXES (CONTINUED)
    Significant components of the Company's deferred taxes are as follows:

<TABLE>
<CAPTION>
                                                                   JUNE 30,
                                                              -------------------
                                                                1999       1998
                                                              --------   --------
                                                                (000'S OMITTED)
<S>                                                           <C>        <C>
Net operating losses........................................   $  --      $  91
Deferred revenue............................................     210        119
Accruals not currently deductible...........................     122         99
Allowance for doubtful accounts.............................      16          8
                                                               -----      -----
Deferred tax asset..........................................     348        317
Valuation allowance.........................................    (250)      (317)
                                                               -----      -----
Net deferred tax asset......................................   $  98      $  --
                                                               =====      =====
</TABLE>

    The reconciliation of the differences between the tax provision and the
amounts computed by applying the statutory Federal income tax rate to pre-tax
income is as follows:

<TABLE>
<CAPTION>
                                                           YEAR ENDED JUNE 30,
                                                           -------------------
                                                             1999       1998
                                                           --------   --------
                                                             (000'S OMITTED)
<S>                                                        <C>        <C>
U.S. Federal statutory income tax........................   $ 51.1    $(249.9)
State taxes, net of federal benefit......................      9.5      (41.6)
Adjustment to valuation allowance........................    (67.0)     283.3
Other....................................................      6.4        8.2
                                                            ------    -------
                                                            $   --    $    --
                                                            ======    =======
</TABLE>

    During the year ended June 30, 1999, the Company made no income tax
payments. During the year ended June 30, 1998, income tax payments amounted to
$28,000.

4.  EMPLOYEE BENEFIT PLANS

    In fiscal year 1998, the Company adopted a deferred compensation plan
("Plan") for all employees, which is qualified under Section 401(k) of the
Internal Revenue Code under which the Company's eligible employees are entitled
to participate. Under the Plan, contributions to be made by the Company are at
the discretion of the Board of Directors of the Company. The Company contributed
$9,000 and $4,100 in fiscal years 1999 and 1998, respectively.

5.  LEASES

    In fiscal year 1997, TACTech rented facilities in Yorba Linda, California on
a month-to-month basis.

    The Company leased a new facility of approximately 11,500 square feet in
Yorba Linda commencing on October 1, 1997 for a period of five years. Pursuant
to the new non-cancelable lease, the Company is allocated a portion of the
property's common area maintenance which cannot exceed 106% of the previous
years' common area maintenance charge. The lease is collateralized by a security
deposit of $80,000 which is repayable at the rate of $15,823 annually following
each anniversary of the lease commencement until

                                      F-11
<PAGE>
                 TRANSITION ANALYSIS COMPONENT TECHNOLOGY, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                                 JUNE 30, 1999

5.  LEASES (CONTINUED)
the lease expires. In addition to the Yorba Linda facilities, the Company by
virtue of its acquisition of RAC, assumed a lease for office space in San Diego.
This lease has a three year term ending April 30, 1999 and provides for
additional rent based on the tenant's share of operating expenses in excess of a
base year. The Company exercised its option and extended the lease for a two
year period ending May 1, 2001 at an average annual rate of $26,712 per annum.
Aggregated rent expense was $127,000 for the fiscal year ended June 30, 1999, as
compared to $102,000 in the fiscal year ended June 30, 1998. Aggregate future
minimum lease payments on the existing leases at June 30, 1999 are approximately
as follows: 2000-$113,000; 2001-$114,000; 2002-$96,000 and 2003-$24,000.

6.  REVOLVING LINE OF CREDIT

    On August 28, 1997, the Company entered into a $1,500,000 revolving line of
credit facility, with an interest rate equal to the bank's prime rate (7.75% at
June 30, 1999). As amended on September 24, 1999, the facility has an expiration
date of July 1, 2000 and is guaranteed by Zing. The Company has agreed not to
incur any indebtedness under the facility on July 1, 2000 without Zing's
consent. Proceeds from the loan are to be used for working capital and equipment
acquisitions. Upon expiration of the facility, the Company may be required to
make other financing arrangements which, if required, management believes would
be available. All the company's personal property collateralizes the borrowings
under the facility. The unused portion bears a 1/2% annual commitment fee. The
Company made interest payments relating to the credit facility of approximately
$63,000 and $28,000 for the fiscal years 1999 and 1998, respectively. At
July 30, 1999 the balance outstanding under the revolving line of credit was
$720,000.

7.  STOCKHOLDERS' EQUITY

    The Company's Board of Directors adopted and the Company's stockholders
approved the Transition Analysis Component Technology, Inc. 1997 Stock Option
Plan (the "1997 Plan"). Under the 1997 Plan, options to purchase up to 60,000
shares of Company common stock are available for grant from time to time to key
employees of and consultants to the Company. On November 3, 1997, 26,200 options
were granted at an exercise price of $4.00. In accordance with a vesting plan,
8,800 options became exercisable immediately, 1,800 options are exercisable in
one year and 15,600 options are exercisable ratably over the next three years.
On April 28, 1999, 9,600 additional options were granted at an exercise price of
$5.75. These options are exercisable at the rate of 33-1/3% per annum on each
anniversary date. Options granted under the 1997 Plan expire ten years after
issuance. The weighted average remaining contractual life of these options is
8.67 years. No options were exercised as of June 30, 1999.

    In addition to the Company's 1997 Plan, two key employees of RAC were
granted, pursuant to employment contracts, 44,904 stock options exercisable over
a three year period at the rate of 14,968 options per year. The per share
exercise price of these Options is $3 ("$3 Options"). The right to exercise
these options is subject to incremental vesting as (and if) the Company achieves
certain targeted sales goals. Upon the occurrence of an event or transaction, as
defined in the agreement, except for options that did not previously vest as a
result of the failure to achieve a targeted sales goal, any remaining unvested
options become immediately vested. These options expire five years after
issuance. The weighted average remaining contractual life of these options is
3.3 years. At June 30, 1999, 14,968 of these options were exercisable.

                                      F-12
<PAGE>
                 TRANSITION ANALYSIS COMPONENT TECHNOLOGY, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                                 JUNE 30, 1999

7.  STOCKHOLDERS' EQUITY (CONTINUED)
    Under the provisions of SFAS No. 123, the Company is required to disclose
the fair value, as defined, of options granted to employees and the related
compensation expense. The fair value of the stock options granted was estimated
at the date of grant using a Black-Scholes option pricing model. The
Black-Scholes option valuation model was developed for use in estimating the
fair value of traded options which have no vesting restrictions and are fully
transferable. In addition, option valuation models require the input of highly
subjective assumptions, including the expected stock price volatility. In
management's opinion, because the Company's employee stock options have
characteristics significantly different from those of traded options, and
because changes in the subjective input assumptions can materially affect the
fair value estimate. The existing models do not necessarily provide a reliable
single measure of the fair value of its employee stock options. The fair value
of the options granted during the years ended June 30, 1999 and 1998 was
determined using the following assumptions; risk-free interest rates of
5.73%-1999, 6.00%-1998; dividend yields of 0%, volatility factors of the
expected market price of the Company's common stock of .913 for 1999 grants and
 .683 and 5.239 for 1998 grants, for the $3 and $4 options, respectively, and a
weighted-average expected life of the options of 3 years for the $3 options and
10 years for 1997 Plan options. For purposes of pro forma disclosures, the
estimated fair value of the options is amortized to expense over the options' 3
year vesting period. The estimated weighted-average fair value per option is
approximately $1.11 for the $3 options and $5.12 and $4.61 for 1997 Plan grants
made in 1999 and 1998, respectively. The aggregate pro forma effect on the
Company's operations is as follows:

<TABLE>
<CAPTION>
                                                         YEARS ENDED JUNE 30,
                                                         --------------------
                                                           1999       1998
                                                         --------   ---------
<S>                                                      <C>        <C>
As reported:
  Net income (loss)....................................  $150,484   $(735,000)
  Per share:
    Basic..............................................  $   0.25   $   (1.25)
    Diluted............................................  $   0.24   $   (1.25)
Pro forma:
  Net income (loss)....................................  $118,393   $(787,483)
  Per share:
    Basic..............................................  $   0.20   $   (1.34)
    Diluted............................................  $   0.19   $   (1.34)
</TABLE>

                                      F-13
<PAGE>
                 TRANSITION ANALYSIS COMPONENT TECHNOLOGY, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                                 JUNE 30, 1999

8.  EARNINGS PER SHARE

    The following table sets forth the computation of basic and diluted earnings
per share:

<TABLE>
<CAPTION>
                                                              YEARS ENDED JUNE 30,
                                                              --------------------
                                                                1999       1998
                                                              --------   ---------
<S>                                                           <C>        <C>
Numerator
  Numerator for basic and diluted earnings per
    share-income/(loss) available to common stockholders....  $150,484   $(735,000)
                                                              ========   =========
Denominator
  Denominator for basic earnings per share-weighted average
    shares..................................................   598,734     586,106
  Effect of dilutive options................................    22,700
                                                              --------   ---------
  Denominator for diluted earnings per share-adjusted
    weighted average shares and assumed conversions.........   621,434     586,106
                                                              ========   =========
Basic.......................................................  $   0.25   $   (1.25)
                                                              ========   =========
Diluted.....................................................  $   0.24   $   (1.25)
                                                              ========   =========
</TABLE>

9.  RELATED PARTIES

    In 1997 and prior years, the Company was allocated a portion of the former
parent company's corporate administration expenses which amounted to $100,000 in
fiscal 1997. As of July 1, 1997, the administrative charge was eliminated and in
lieu thereof by agreement, certain employees of Zing, the former parent were
placed on the Company's payroll for an amount not to exceed $100,000. These
amounts are included in selling general and administrative expenses.

    The President and Chief Executive Officer of the Company (also an officer of
Zing) has an employment agreement expiring on June 30, 2000, entitling him to a
salary of $80,000 per annum. There is no contractual entitlement to any bonus.

    The Executive Vice President and General Manager (who is a significant
shareholder of the Company) has an employment agreement that expired on May 1,
1999, entitling him to a base salary of $120,000 per annum plus five percent
(5%) of the Company's collected revenues, except that one half percent is shared
with other employees and two and a quarter percent is shared with other sales
personnel on certain accounts.

    Pursuant to the RAC Acquisition, the two selling shareholders received three
year employment agreements. Each employment agreement provides for an annual
base salary and certain employee benefits up to an aggregate of $200,000, and
incentive bonus up to $100,000 annually, measured by the Company achieving
certain targeted sales goals.

10.  CONTINGENCIES

    Pursuant to an indemnification agreement entered into between the Company
and Zing in connection with the distribution by Zing of its TACTech shares of
Common Stock to Zing's stockholders (the "Distribution"), the Company agreed to
indemnify and save harmless Zing and its directors, officers, employees, agents
and/or affiliates for any claims incurred or suffered, directly or indirectly,
by them

                                      F-14
<PAGE>
                 TRANSITION ANALYSIS COMPONENT TECHNOLOGY, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                                 JUNE 30, 1999

10.  CONTINGENCIES (CONTINUED)
resulting from or attributable to, among other things, the operation of the
Company or the Distribution. Although the Company is not aware of any pending or
threatened material liability for which it anticipates becoming obligated to
make payments in connection with its obligations to indemnify Zing, there can be
no assurance that such indemnification obligations could not arise or that such
indemnification obligations would not be material to the Company. Under the
Indemnification Agreement, Zing is required to indemnify the Company in certain
circumstances, which obligation may counterbalance the indemnification
obligations owed by the Company to Zing.

                                      F-15
<PAGE>
                 TRANSITION ANALYSIS COMPONENT TECHNOLOGY, INC.

                   INDEX TO FINANCIAL STATEMENTS (UNAUDITED)

                            AS OF DECEMBER 31, 1999

                                     INDEX

<TABLE>
<S>                     <C>                                                           <C>
                        Condensed consolidated balance sheets (unaudited)--December
                        31, 1999 and June 30, 1999..................................    F-17

                        Condensed consolidated statements of operations
                        (unaudited)--three months ended December 31, 1999 and
                        1998........................................................    F-18

                        Condensed consolidated statements of operations
                        (unaudited)--six months ended December 31, 1999 and 1998....    F-19

                        Condensed consolidated statements of cash flows
                        (unaudited)--six months ended December 31, 1999 and 1998....    F-20

                        Notes to condensed consolidated financial statements
                        (unaudited)--December 31, 1999..............................    F-21
</TABLE>

                                      F-16
<PAGE>
                TRANSITION ANALYSIS COMPONENTS TECHNOLOGY, INC.

               CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED)

<TABLE>
<CAPTION>
                                                              DECEMBER 31   JUNE 30
                                                                 1999         1999
                                                              -----------   --------
                                                                  (000'S OMITTED
                                                                EXCEPT SHARE DATA)
                                                              ----------------------
                                                              (UNAUDITED)    (NOTE)
<S>                                                           <C>           <C>
ASSETS
Current assets
  Cash......................................................    $  420       $  212
  Accounts receivable, less allowances of $40 and $40,
    respectively............................................       945          960
  Prepaid expenses and other current assets.................        27           61
  Deferred tax asset........................................        98           98
                                                                ------       ------
Total current assets........................................     1,490        1,331
Furniture and equipment.....................................       779          758
Less accumulated depreciation and amortization..............       545          497
                                                                ------       ------
Other assets
  Security deposits.........................................        68           83
  Software development costs--net...........................        41           47
  Excess of cost over fair value of net assets acquired,
    net.....................................................        43           46
                                                                ------       ------
Total assets................................................    $1,876       $1,768
                                                                ======       ======
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities
  Accounts payable and accrued expenses.....................    $  417       $  316
  Accrued compensation expense..............................       125          373
  Accrued income taxes......................................        98           98
  Deferred income...........................................       681          531
  Revolving line of credit..................................       670          570
                                                                ------       ------
Total current liabilities...................................     1,991        1,888
Stockholders' equity (deficiency)
  Common stock, par value $.01 per share; authorized
    5,000,000 shares; issued 598,734 shares as of December
    31, 1999 and June 30, 1999..............................         6            6
  Additional paid-in capital................................       553          553
  Accumulated deficit.......................................      (674)        (679)
Total stockholders' equity (deficiency).....................      (115)        (120)
                                                                ------       ------
Total liabilities and stockholders' equity..................    $1,876       $1,768
                                                                ======       ======
</TABLE>

Note: The condensed consolidated balance sheet at June 30, 1999 has been derived
      from the audited consolidated financial statements at that date.

     See Notes to Condensed Consolidated Financial Statements (Unaudited).

                                      F-17
<PAGE>
                 TRANSITION ANALYSIS COMPONENT TECHNOLOGY, INC.

          CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED)

<TABLE>
<CAPTION>
                                                                THREE MONTHS ENDED
                                                                   DECEMBER 31,
                                                              -----------------------
                                                                 1999         1998
                                                              ----------   ----------
                                                              (000'S OMITTED, EXCEPT
                                                                  PER SHARE DATA)
<S>                                                           <C>          <C>
Revenues....................................................   $  1,285     $  1,203
Selling, general and administrative expenses................      1,119        1,070
Depreciation of equipment...................................         24           21
Amortization of software development costs and acquisition
  costs.....................................................          5            5
Interest expense............................................         15           17
                                                               --------     --------
Income before income taxes..................................        122           90
Provision for income taxes..................................         94           --
                                                               --------     --------
Net income..................................................   $     28     $     90
                                                               ========     ========
Net income per common share--basic..........................   $    .05     $    .15
                                                               ========     ========
Net income per common share--diluted........................   $    .04     $    .15
                                                               ========     ========
Average number of outstanding shares--basic.................    598,734      598,734
                                                               ========     ========
Average number of outstanding shares--diluted...............    638,144      619,141
                                                               ========     ========
</TABLE>

     See Notes to Condensed Consolidated Financial Statements (Unaudited) .

                                      F-18
<PAGE>
                 TRANSITION ANALYSIS COMPONENT TECHNOLOGY, INC.

          CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED)

<TABLE>
<CAPTION>
                                                                 SIX MONTHS ENDED
                                                                   DECEMBER 31,
                                                              -----------------------
                                                                 1999         1998
                                                              ----------   ----------
                                                              (000'S OMITTED, EXCEPT
                                                                    SHARE DATA)
<S>                                                           <C>          <C>
Revenues....................................................   $  2,509     $  2,127
Selling, general and administrative expenses................      2,323        2,019
Depreciation of equipment...................................         48           41
Amortization of software development costs and acquisition
  costs.....................................................          9           10
Interest expense............................................         30           35
                                                               --------     --------
Income before income taxes..................................         99           22
Provision for income taxes..................................         94           --
                                                               --------     --------
Net income..................................................   $      5     $     22
                                                               ========     ========
Net income per common share--basic..........................   $    .01     $    .04
                                                               ========     ========
Net income per common share--diluted........................   $    .01     $    .04
                                                               ========     ========
Average number of outstanding shares--basic.................    598,734      598,734
                                                               ========     ========
Average number of outstanding shares--diluted...............    638,922      617,373
                                                               ========     ========
</TABLE>

     See Notes to Condensed Consolidated Financial Statements (Unaudited).

                                      F-19
<PAGE>
                 TRANSITION ANALYSIS COMPONENT TECHNOLOGY, INC.

          CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)

<TABLE>
<CAPTION>
                                                               SIX MONTHS ENDED
                                                                 DECEMBER 31,
                                                              -------------------
                                                                1999       1998
                                                              --------   --------
                                                                (000'S OMITTED)
<S>                                                           <C>        <C>
OPERATING ACTIVITIES
Net income..................................................   $   5      $  22
Adjustments to reconcile net income to net cash provided by
  operating activities:
    Depreciation and amortization...........................      57         51
    Changes in operating assets and liabilities:
      Accounts receivable...................................      15        (91)
      Prepaid expenses and other current assets.............      34         38
      Accounts payable and accrued expenses.................    (147)      (134)
      Deferred income.......................................     150        161
      Rent security deposits................................      15         --
                                                               -----      -----
Net cash provided by operating activities...................     129         47
                                                               -----      -----
INVESTING ACTIVITIES
Purchase of equipment.......................................     (21)       (27)
                                                               -----      -----
Net cash used in investing activities.......................     (21)       (27)
                                                               -----      -----
FINANCING ACTIVITIES
Proceeds from lines of credit...............................     100        225
                                                               -----      -----
Net cash provided by financing activities...................     100        225
                                                               -----      -----
Net increase in cash........................................     208        245
Cash at beginning of period.................................     212        120
                                                               -----      -----
Cash at end of period.......................................   $ 420      $ 365
                                                               =====      =====
</TABLE>

     See Notes to Condensed Consolidated Financial Statements (Unaudited).

                                      F-20
<PAGE>
                 TRANSITION ANALYSIS COMPONENT TECHNOLOGY, INC.
        NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)
                               DECEMBER 31, 1999

NOTE A--BASIS OF PRESENTATION

    The accompanying unaudited condensed consolidated financial statements have
been prepared in accordance with generally accepted accounting principles for
interim financial information and with the instructions to Form 10-QSB and
Article 10 of Regulation S-X. Accordingly, they do not include all of the
information and footnotes required by generally accepted accounting principles
for complete financial statements. In the opinion of management, all adjustments
(consisting of normal recurring accruals) considered necessary for a fair
presentation have been included. Operating results for the six-month period
ended December 31, 1999 are not necessarily indicative of the results that may
be expected for the year ending June 30, 2000.

NOTE B--ORGANIZATION

ACQUISITION OF RESEARCH ANALYSIS CORP.

    On September 22, 1997, Transition Analysis Component Technology, Inc.
("TACTech" or the "Company") acquired the net assets of Research Analysis Corp.
("RAC") pursuant to a merger (the "Merger") of RAC, a California corporation
formed for this purpose and wholly-owned by the Company, with and into RAC. Upon
consummation of the Merger, RAC, as the surviving corporation, became a
wholly-owned subsidiary of the Company. The RAC acquisition was accounted for
pursuant to the purchase method of accounting and is effective as of September
1, 1997.

NOTE C COMMON STOCK PURCHASE RIGHTS

    During October 1999, the Company filed a Registration Statement for the
purpose of distributing common stock purchase rights to all shareholders. The
rights would have enabled the Company to raise up to $2,500,000 in additional
capital. This rights offering was canceled by Notice to the Securities and
Exchange Commission during the month of January 2000.

                                      F-21
<PAGE>
                 TRANSITION ANALYSIS COMPONENT TECHNOLOGY, INC.
        NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)
                               DECEMBER 31, 1999
                                  (CONTINUED)

NOTE D--EARNINGS PER SHARE

    The following is a reconciliation of the numerators and denominators of the
basic and diluted EPS computations and other related disclosures:

<TABLE>
<CAPTION>
                                                             THREE MONTHS           SIX MONTHS
                                                                 ENDED                 ENDED
                                                             DECEMBER 31,          DECEMBER 31,
                                                          -------------------   -------------------
                                                            1999       1998       1999       1998
                                                          --------   --------   --------   --------
                                                             (000'S OMITTED, EXCEPT SHARE DATA)
<S>                                                       <C>        <C>        <C>        <C>
NUMERATOR
Numerator for basic and diluted earnings per
  share--income (loss) available to common
  stockholders..........................................  $    28    $    90    $     5    $    22
                                                          =======    =======    =======    =======
DENOMINATOR
Denominator for basic earnings per share - weighted
  average shares........................................  598,734    598,734    598,734    598,734
Effect of dilutive securities:
Options.................................................   39,410     20,407     40,188     18,639
                                                          -------    -------    -------    -------
Denominator for diluted earnings per share--adjusted
  weighted average shares and assumed conversions.......  638,144    619,141    638,922    617,373
                                                          =======    =======    =======    =======
Basic earnings per share--and assumed conversions.......  $   .05    $   .15    $   .01    $   .04
                                                          =======    =======    =======    =======
Diluted earnings per share..............................  $   .04    $   .15    $   .01    $   .04
                                                          =======    =======    =======    =======
</TABLE>

NOTE E--SUBSEQUENT EVENT

    On January 17, 2000 the Company entered into an agreement to merge with a
subsidiary of Aspect Development Inc. ("Aspect") upon satisfaction of certain
conditions, including the approval of the Company's shareholders. In
consideration, TACTech shareholders are to receive shares of Aspect based on an
agreed upon exchange ratio as stipulated. All options to purchase TACTech stock
are to be converted into options to purchase the stock of Aspect.

                                      F-22
<PAGE>
- --------------------------------------------------------------------------------

                                                                         ANNEX A

                      AGREEMENT AND PLAN OF REORGANIZATION
                                     AMONG:
                            ASPECT DEVELOPMENT INC.,
                            A DELAWARE CORPORATION;
                       ASTA MERGER SUB ACQUISITION, INC.,
                          A DELAWARE CORPORATION; AND
                TRANSITION ANALYSIS COMPONENT TECHNOLOGY, INC.,
                             A DELAWARE CORPORATION

                            ------------------------

                          DATED AS OF JANUARY 17, 2000

                            ------------------------

- --------------------------------------------------------------------------------
<PAGE>
                      AGREEMENT AND PLAN OF REORGANIZATION

    THIS AGREEMENT AND PLAN OF REORGANIZATION ("Agreement") is made and entered
into as of January 17, 2000, by and among: ASPECT DEVELOPMENT, INC., a Delaware
corporation ("Parent"); ASTA MERGER SUB, INC., a Delaware corporation and a
wholly owned subsidiary of Parent ("Merger Sub"); and TRANSITION ANALYSIS
COMPONENT TECHNOLOGY, INC., a Delaware corporation (the "Company"). Certain
capitalized terms used in this Agreement are defined in EXHIBIT A.

                                    RECITALS

    A.  Parent, Merger Sub and the Company intend to effect a merger of Merger
Sub into the Company in accordance with this Agreement and the Delaware General
Corporation Law (the "Merger"). Upon consummation of the Merger, Merger Sub will
cease to exist.

    B.  It is intended that the Merger qualify as a tax-free reorganization
within the meaning of Section 368(a) of the Internal Revenue Code of 1986, as
amended (the "Code"). For financial reporting purposes, it is intended that the
Merger be accounted for as a pooling of interests in accordance with GAAP.

    C.  The respective boards of directors of Parent, Merger Sub and the Company
have approved this Agreement and approved the Merger.

    D.  In order to induce Parent to enter into this Agreement and to consummate
the Merger, Robert M. Schrader, Robert E. Schrader, Stacy J. Schrader, Deborah
Schrader, Martin Fawer, Malcolm Baca, Bruce Blackford and Jeffrey Hanser are
entering into Voting Agreements pursuant to which they are agreeing to vote in
favor of the adoption and approval of this Agreement and the approval of the
Merger.

                                   AGREEMENT

    The parties to this Agreement, intending to be legally bound, agree as
follows:

    SECTION 1.  DESCRIPTION OF TRANSACTION

    1.1  MERGER OF MERGER SUB INTO THE COMPANY.  Upon the terms and subject to
the conditions set forth in this Agreement, at the Effective Time (as defined in
Section 1.3), Merger Sub shall be merged with and into the Company, and the
separate existence of Merger Sub shall cease. The Company will continue as the
surviving corporation in the Merger (the "Surviving Corporation").

    1.2  EFFECT OF THE MERGER.  The Merger shall have the effects set forth in
this Agreement and in the applicable provisions of the Delaware General
Corporation Law (the "DGCL").

    1.3  CLOSING; EFFECTIVE TIME.  The consummation of the transactions
contemplated by this Agreement (the "Closing") shall take place at the offices
of Cooley Godward LLP, located at Five Palo Alto Square, 3000 El Camino Real,
Palo Alto, California, at 10:00 a.m. on a date to be designated by Parent (the
"Closing Date"), which shall be no later than the fifth business day after the
satisfaction or waiver of the conditions set forth in Sections 6 and 7.
Contemporaneously with or as promptly as practicable after the Closing, the
parties hereto shall cause a properly executed certificate of merger conforming
to the requirements of the DGCL (the "Certificate of Merger") to be filed with
the Secretary of State of the State of Delaware. The Merger shall take effect at
the time the Certificate of Merger is filed with the Secretary of State of the
State of Delaware or at such later time as may be specified in the Certificate
of Merger (the "Effective Time").

                                      A-1
<PAGE>
    1.4  CERTIFICATE OF INCORPORATION AND BYLAWS; DIRECTORS AND
OFFICERS.  Unless otherwise determined by Parent prior to the Effective Time:

    (A)  the Certificate of Incorporation of Merger Sub, as in effect
immediately prior to the Effective Time, shall be the Certificate of
Incorporation of the Surviving Corporation until thereafter changed or amended
as provided therein or by applicable law;

    (B)  the Bylaws of Merger Sub, as in effect immediately prior to the
Effective Time, shall be the Bylaws of the Surviving Corporation until
thereafter changed or amended as provided therein or by applicable law; and

    (C)  the directors and officers of the Surviving Corporation immediately
after the Effective Time shall be the respective individuals who are directors
and officers of Merger Sub immediately prior to the Effective Time.

    1.5  CONVERSION OF SHARES.

    (A)  Subject to Sections 1.5(b), 1.5(c) and 1.5(d), at the Effective Time,
by virtue of the Merger and without any further action on the part of Parent,
Merger Sub, the Company or any stockholder of the Company:

           (I)  any shares of Company Common Stock then held by the Company or
       any Subsidiary of the Company (or held in the Company's treasury) shall
       be canceled and retired and shall cease to exist at the Effective Time,
       and no consideration shall be delivered in exchange therefor;

           (II)  any shares of Company Common Stock then held by Parent, Merger
       Sub or any other Subsidiary of Parent shall be canceled and retired and
       shall cease to exist at the Effective Time, and no consideration shall be
       delivered in exchange therefor;

           (III)  except as provided in clauses "(i)" and "(ii)" of this
       sentence, each share of Company Common Stock then outstanding shall be
       converted into the right to receive that fraction of a share of Parent
       Common Stock equal to the "Exchange Ratio;"

           (IV)  Each Company Option (as hereinafter defined), other than such
       Company Options which by their terms terminate at or before the Effective
       Date shall be converted into an option to purchase shares of Parent
       Common Stock in accordance with Section 5.4. Company Options which are
       not then vested shall remain unvested upon conversion.

    The Exchange Ratio shall be a fraction having a numerator equal to twelve
million seven hundred fifty thousand (12,750,000) and having a denominator equal
to the amount determined by multiplying (A) the Parent Average Stock Price by
(B) the Adjusted Fully Diluted Company Share Amount.

    (B)  If, between the date of this Agreement and the Effective Time, the
outstanding shares of Company Common Stock or Parent Common Stock are changed
into a different number or class of shares by reason of any stock split,
division or subdivision of shares, stock dividend, reverse stock split,
consolidation of shares, reclassification, recapitalization or other similar
transaction, then the Exchange Ratio shall be appropriately adjusted.

    (C)  If any shares of Company Common Stock outstanding immediately prior to
the Effective Time are unvested or are subject to a repurchase option, risk of
forfeiture or other condition under any applicable restricted stock purchase
agreement or other agreement with the Company or under which the Company has any
rights, then the shares of Parent Common Stock issued in exchange for such
shares of Company Common Stock will also be unvested and subject to the same
repurchase option, risk of forfeiture or other condition, and the certificates
representing such shares of Parent Common Stock may accordingly be marked with
appropriate legends. The Company shall take all action that may be necessary

                                      A-2
<PAGE>
to ensure that, from and after the Effective Time, Parent is entitled to
exercise any such repurchase option or other right set forth in any such
restricted stock purchase agreement or other agreement.

    (D)  No fractional shares of Parent Common Stock shall be issued in
connection with the Merger, and no certificates or scrip for any such fractional
shares shall be issued. Any holder of Company Common Stock who would otherwise
be entitled to receive a fraction of a share of Parent Common Stock (after
aggregating all fractional shares of Parent Common Stock issuable to such
holder) shall, in lieu of such fraction of a share and upon surrender of such
holder's Company Stock Certificate(s) (as defined in Section 1.6), be paid in
cash the dollar amount (rounded to the nearest whole cent), without interest,
determined by multiplying such fraction by the Parent Average Stock Price.

    1.6  CLOSING OF THE COMPANY'S TRANSFER BOOKS.  At the Effective Time:
(a) all shares of Company Common Stock outstanding immediately prior to the
Effective Time shall automatically be canceled and retired and shall cease to
exist, and all holders of certificates representing shares of Company Common
Stock that were outstanding immediately prior to the Effective Time shall cease
to have any rights as stockholders of the Company; and (b) the stock transfer
books of the Company shall be closed with respect to all shares of Company
Common Stock outstanding immediately prior to the Effective Time. No further
transfer of any such shares of Company Common Stock shall be made on such stock
transfer books after the Effective Time. If, after the Effective Time, a valid
certificate previously representing any shares of Company Common Stock (a
"Company Stock Certificate") is presented to the Exchange Agent (as defined in
Section 1.7) or to the Surviving Corporation or Parent, such Company Stock
Certificate shall be canceled and shall be exchanged as provided in
Section 1.7.

    1.7  EXCHANGE OF CERTIFICATES; HOLDBACK FUND.

    (A)  A reputable bank or trust company selected by Parent prior to the
Closing Date shall act as exchange agent in the Merger (the "Exchange Agent").
Promptly after the Effective Time, Parent shall deposit with the Exchange Agent
certificates representing the shares of Parent Common Stock issuable pursuant to
this Section 1, and immediately prior to the Effective Time Parent shall deposit
with the Exchange Agent cash sufficient to make payments in lieu of fractional
shares in accordance with Section 1.5(d). The shares of Parent Common Stock and
cash amounts so deposited with the Exchange Agent, together with any dividends
or distributions received by the Exchange Agent with respect to such shares, are
referred to collectively as the "Exchange Fund."

    (B)  As soon as reasonably practicable after the Effective Time, the
Exchange Agent will mail to the record holders of Company Stock Certificates
(the "Former Company Stockholders") (i) a letter of transmittal in customary
form and containing such provisions as Parent may reasonably specify (including
a provision confirming that delivery of Company Stock Certificates shall be
effected, and risk of loss and title to Company Stock Certificates shall pass,
only upon delivery of such Company Stock Certificates to the Exchange Agent),
and (ii) instructions for use in effecting the surrender of Company Stock
Certificates in exchange for certificates representing Parent Common Stock. Upon
surrender of a Company Stock Certificate to the Exchange Agent for exchange,
together with a duly executed letter of transmittal and such other documents as
may be reasonably required by the Exchange Agent or Parent, (1) the holder of
such Company Stock Certificate shall be entitled to receive in exchange therefor
a certificate representing the number of whole shares of Parent Common Stock
equal to ninety-five percent (95%) of the number of whole shares that such
Former Company Stockholder has the right to receive pursuant to the provisions
of Section 1.5 (and cash in lieu of any fractional share of Parent Common
Stock), and (2) the Company Stock Certificate so surrendered shall be canceled.
The remaining five percent (5%) of the number of whole shares that such Former
Company Stockholder has a right to receive pursuant to the provisions of
Section 1.5 will be placed into the Holdback Fund (as defined in Section 9.5)
pursuant to the terms of Section 9.5. Until surrendered as contemplated by this
Section 1.7(b), each Company Stock Certificate shall be deemed, from and after
the Effective Time, to represent only the right to receive the shares of Parent
Common Stock (and cash in lieu of any fractional share of Parent Common Stock)
as contemplated

                                      A-3
<PAGE>
by Section 1. If any Company Stock Certificate shall have been lost, stolen or
destroyed, Parent may, in its discretion and as a condition precedent to the
payment of any cash and issuance of any certificate representing Parent Common
Stock, require the owner of such lost, stolen or destroyed Company Stock
Certificate to provide an appropriate affidavit and to deliver a bond (in such
sum as Parent may reasonably direct) as indemnity against any claim that may be
made against the Exchange Agent, Parent or the Surviving Corporation with
respect to such Company Stock Certificate.

    (C)  No dividends or other distributions declared or made with respect to
Parent Common Stock with a record date after the Effective Time shall be paid to
the holder of any unsurrendered Company Stock Certificate with respect to the
shares of Parent Common Stock which such holder has the right to receive upon
surrender thereof until such holder surrenders such Company Stock Certificate in
accordance with this Section 1.7 (at which time such holder shall be entitled,
subject to the effect of applicable escheat or similar laws, to receive all such
dividends and distributions, without interest).

    (D)  Each of the Exchange Agent, Parent and the Surviving Corporation shall
be required to deduct and withhold from any consideration payable or otherwise
deliverable pursuant to this Agreement to any holder or former holder of Company
Common Stock such amounts as may be required to be deducted or withheld
therefrom under the Code or any provision of state, local or foreign tax law or
under any other applicable Legal Requirement. To the extent such amounts are so
deducted or withheld, such amounts shall be treated for all purposes under this
Agreement as having been paid to the Person to whom such amounts would otherwise
have been paid and shall be paid to the appropriate Governmental Body on behalf
of such Person.

    (E)  Neither Parent nor the Surviving Corporation shall be liable to any
holder or former holder of Company Common Stock or to any other Person with
respect to any shares of Parent Common Stock (or dividends or distributions with
respect thereto), or for any cash amounts, delivered to any public official
pursuant to any applicable abandoned property law, escheat law or similar Legal
Requirement.

    1.8  TAX CONSEQUENCES.  For federal income tax purposes, the Merger is
intended to constitute a reorganization within the meaning of Section 368 of the
Code. The parties to this Agreement hereby adopt this Agreement as a "plan of
reorganization" within the meaning of Sections 1.368-2(g) and 1.368-3(a) of the
United States Treasury Regulations.

    1.9  ACCOUNTING CONSEQUENCES.  For financial reporting purposes, the Merger
is intended to be accounted for as a "pooling of interests" in accordance with
GAAP.

    1.10  FURTHER ACTION.  If, at any time after the Effective Time, any further
action is determined by Parent to be necessary or desirable to carry out the
purposes of this Agreement or to vest the Surviving Corporation with full right,
title and possession of and to all rights and property of Merger Sub and the
Company, the officers and directors of the Surviving Corporation and Parent
shall be fully authorized (in the name of Merger Sub, in the name of the Company
and otherwise) to take such action.

    SECTION 2.  REPRESENTATIONS AND WARRANTIES OF THE COMPANY

    The Company represents and warrants to Parent and Merger Sub as follows:

    2.1  DUE ORGANIZATION; SUBSIDIARIES; ETC.

    (A)  The Company has no Subsidiaries, except for the Entities identified in
Part 2.1(a)(i) of the Company Disclosure Schedule; and neither the Company nor
any of the other Entities identified in Part 2.1(a)(i) of the Company Disclosure
Schedule owns any capital stock of, or any equity interest of any nature in, any
other Entity, other than the Entities identified in Part 2.1(a)(ii) of the
Company Disclosure Schedule. (The Company and each of its Subsidiaries are
referred to collectively in this Agreement as the "Acquired Corporations.") None
of the Acquired Corporations has agreed or is obligated to make, or is

                                      A-4
<PAGE>
bound by any Contract under which it may become obligated to make, any future
investment in or capital contribution to any other Entity. None of the Acquired
Corporations has, at any time, been a general partner of, or has otherwise been
liable for any of the debts or other obligations of, any general partnership,
limited partnership or other Entity.

    (B)  Each of the Acquired Corporations is a corporation duly organized,
validly existing and in good standing under the laws of the jurisdiction of its
incorporation and has all necessary power and authority: (i) to conduct its
business in the manner in which its business is currently being conducted;
(ii) to own and use its assets in the manner in which its assets are currently
owned and used; and (iii) to perform its obligations under all Contracts by
which it is bound.

    (C)  Each of the Acquired Corporations is qualified to do business as a
foreign corporation, and is in good standing, under the laws of all
jurisdictions where the nature of its business requires such qualification and
where the failure to be so qualified would reasonably be expected to have a
Company Material Adverse Effect.

    2.2  CERTIFICATE OF INCORPORATION AND BYLAWS.  The Company has delivered to
Parent accurate and complete copies of the certificate of incorporation, bylaws
and other charter and organizational documents of the respective Acquired
Corporations, including all amendments thereto.

    2.3  CAPITALIZATION, ETC.

    (A)  The authorized capital stock of the Company consists of: (i) 5,000,000
shares of Company Common Stock, $0.01 par value per share, of which 598,734
shares have been issued and are outstanding as of the date of this Agreement;
and (ii) 5,000,000 shares of Preferred Stock, $.01 par value per share, of which
no shares have been issued or are outstanding. All of the outstanding shares of
Company Common Stock have been duly authorized and validly issued, and are fully
paid and nonassessable. As of the date of this Agreement, there are no shares of
Company Common Stock held by any of the other Acquired Corporations. Except as
set forth in Part 2.3(a) of the Company Disclosure Schedule: (i) none of the
outstanding shares of Company Common Stock is entitled or subject to any
preemptive right, right of participation, right of maintenance or any similar
right; (ii) none of the outstanding shares of Company Common Stock is subject to
any right of first refusal in favor of the Company; (iii) there is no Acquired
Corporation Contract relating to the voting or registration of, or restricting
any Person from purchasing, selling, pledging or otherwise disposing of (or
granting any option or similar right with respect to), any shares of Company
Common Stock, and (iv) none of the Acquired Corporations is under any
obligation, or is bound by any Contract pursuant to which it may become
obligated, to repurchase, redeem or otherwise acquire any outstanding shares of
Company Common Stock.

    (B)  As of the date of this Agreement: (i) 80,704 shares of Company Common
Stock are subject to issuance pursuant to outstanding options to purchase shares
of Company Common Stock or existing contractual obligations to issues shares of
Company Common Stock; and (ii) 24,200 shares of Company Common Stock are
reserved for future issuance pursuant to the Company's 1997 Stock Option Plan.
(Stock options granted by the Company pursuant to the Company's stock option
plans and otherwise are referred to in this Agreement as "Company Options.")
Part 2.3(b) of the Company Disclosure Schedule sets forth the following
information with respect to each Company Option or contractual obligation
outstanding as of the date of this Agreement: (i) the particular plan (if any)
or agreement pursuant to which such Company Option or contractual obligation was
granted or incurred; (ii) the name of the optionee; (iii) the number of shares
of Company Common Stock subject to such Company Option or contractual
obligation; (iv) the exercise price of such Company Option; (v) the date on
which such Company Option was granted or contractual obligation incurred;
(vi) the applicable vesting schedules, and the extent to which such Company
Option is vested and exercisable as of the date of this Agreement; and
(vii) the date on which such Company Option or contractual obligation expires,
including as a result of the consummation of this Merger. The Company has
delivered to Parent accurate and complete copies of all

                                      A-5
<PAGE>
stock option plans pursuant to which the Company has granted any outstanding
stock options, and the forms of all stock option or other agreements evidencing
such options or contractual obligation.

    (C)  Except as set forth in Part 2.3(b) of the Company Disclosure Schedule,
there is no: (i) outstanding subscription, option, call, warrant or right
(whether or not currently exercisable) to acquire any shares of the capital
stock or other securities of the Company; (ii) outstanding security, instrument
or obligation that is or may become convertible into or exchangeable for any
shares of the capital stock or other securities of the Company;
(iii) stockholder rights plan (or similar plan commonly referred to as a "poison
pill") or Contract under which the Company is or may become obligated to sell or
otherwise issue any shares of its capital stock or any other securities; or
(iv) to the best of the knowledge of the Company, valid claim or condition or
circumstance that is likely to give rise to a valid claim by any Person to the
effect that such Person is entitled to acquire or receive any shares of capital
stock or other securities of the Company.

    (D)  All outstanding shares of Company Common Stock and all outstanding
shares of capital stock of each Subsidiary of the Company have been issued and
granted in compliance with (i) all applicable securities laws and other
applicable Legal Requirements, and (ii) all requirements set forth in applicable
Contracts.

    (E)  All of the outstanding shares of capital stock of the corporations
identified in Part 2.1(a)(ii) of the Company Disclosure Schedule have been duly
authorized and are validly issued, are fully paid and nonassessable and are
owned beneficially and of record by the Company, free and clear of any
Encumbrances other than restrictions arising under the Securities Act.

    2.4  SEC FILINGS; FINANCIAL STATEMENTS.

    (A)  The Company has delivered or made available (including through the SEC
EDGAR system) to Parent accurate and complete copies (excluding copies of
exhibits) of each report, registration statement and definitive proxy statement
filed by the Company with the SEC between December 31, 1997 and the date of this
Agreement (the "Company SEC Documents"). As of the time it was filed with the
SEC (or, if amended or superseded by a filing prior to the date of this
Agreement, then on the date of such filing): (i) each of the Company SEC
Documents complied in all material respects with the applicable requirements of
the Securities Act or the Exchange Act (as the case may be); and (ii) none of
the Company SEC Documents contained any untrue statement of a material fact or
omitted to state a material fact required to be stated therein or necessary in
order to make the statements therein, in the light of the circumstances under
which they were made, not misleading.

    (B)  The financial statements contained in the Company SEC Documents:
(i) complied as to form in all material respects with the published rules and
regulations of the SEC applicable thereto; (ii) were prepared in accordance with
generally accepted accounting principles applied on a consistent basis
throughout the periods covered (except as may be indicated in the notes to such
financial statements and, in the case of unaudited statements, as permitted by
Form 10-QSB of the SEC, and except that the unaudited financial statements may
not contain footnotes and are subject to year-end adjustments), and
(iii) fairly present the consolidated financial position of the Company and its
subsidiaries as of the respective dates thereof and the consolidated results of
operations of the Company and its subsidiaries for the periods covered thereby.

    2.5  ABSENCE OF CHANGES.  Except as set forth in Part 2.5 of the Company
Disclosure Schedule, since September 30, 1999:

    (A)  no event has occurred that would reasonably be expected to have a
Company Material Adverse Effect;

                                      A-6
<PAGE>
    (B)  there has not been any material loss, damage or destruction to, or any
material interruption in the use of, any of the assets of any of the Acquired
Corporations (whether or not covered by insurance) that has had or would
reasonably be expected to have a Company Material Adverse Effect;

    (C)  none of the Acquired Corporations has (i) declared, accrued, set aside
or paid any dividend or made any other distribution in respect of any shares of
capital stock, or (ii) repurchased, redeemed or otherwise reacquired any shares
of capital stock or other securities;

    (D)  none of the Acquired Corporations has sold, issued or granted, or
authorized the issuance of, (i) any capital stock or other security (except for
Company Common Stock issued upon the valid exercise of outstanding Company
Options in accordance with the terms of the option agreement pursuant to which
such Company Options are outstanding), (ii) any option, warrant or right to
acquire any capital stock or any other security (except for Company Options
described in Part 2.3(b) of the Company Disclosure Schedule), or (iii) any
instrument convertible into or exchangeable for any capital stock or other
security;

    (E)  except pursuant to the terms of the instrument pursuant to which such
rights were granted, a list of such instruments which is set forth in
Part 2.5(e) of the Company Disclosure Schedule, the Company has not amended or
waived any of its rights under, or permitted the acceleration of vesting under,
(i) any provision of any of the Company's stock option plans, (ii) any provision
of any agreement evidencing any outstanding Company Option, or (iii) any
restricted stock purchase agreement;

    (F)  there has been no amendment to the certificate of incorporation, bylaws
or other charter or organizational documents of any of the Acquired
Corporations, and none of the Acquired Corporations has effected or been a party
to any merger, consolidation, amalgamation, share exchange, business
combination, recapitalization, reclassification of shares, stock split, division
or subdivision of shares, reverse stock split, consolidation of shares or
similar transaction;

    (G)  none of the Acquired Corporations has received any Acquisition Proposal
to which it has given active consideration during the sixty day period prior to
the date hereof;;

    (H)  none of the Acquired Corporations has formed any Subsidiary or acquired
any equity interest or other interest in any other Entity;

    (I)  none of the Acquired Corporations has made any capital expenditure
which, when added to all other capital expenditures made on behalf of the
Acquired Corporations since September 30, 1999, exceeds $25,000 in the
aggregate;

    (J)  except in the ordinary course of business and consistent with past
practices, none of the Acquired Corporations has (i) entered into or permitted
any of the assets owned or used by it to become bound by any Material Contract
(as defined in Section 2.10), or (ii) amended or terminated, or waived any
material right or remedy under, any Material Contract;

    (K)  except in the ordinary course of business and consistent with past
practices, none of the Acquired Corporations has (i) acquired, leased or
licensed any material right or other material asset from any other Person,
(ii) sold or otherwise disposed of, or leased or licensed, any material right or
other material asset to any other Person, or (iii) waived or relinquished any
right;

    (L)  except in the ordinary course of business and consistent with past
practices, none of the Acquired Corporations has written off as uncollectible,
or established any extraordinary reserve with respect to, any account receivable
or other indebtedness;

    (M)  none of the Acquired Corporations has made any pledge of any of its
assets or otherwise permitted any of its assets to become subject to any
Encumbrance, except for pledges of immaterial assets made in the ordinary course
of business and consistent with past practices;

    (N)  none of the Acquired Corporations has (i) lent money to any Person, or
(ii) incurred or guaranteed any indebtedness for borrowed money;

                                      A-7
<PAGE>
    (O)  none of the Acquired Corporations has (i) established or adopted any
Plan (as defined in Section 2.17(a)), (ii) caused or permitted any Plan to be
amended in any material respect, or (iii) paid any bonus or made any
profit-sharing or similar payment to, or materially increased the amount of the
wages, salary, commissions, fringe benefits or other compensation or
remuneration payable to, any of its directors, officers or employees;

    (P)  none of the Acquired Corporations has changed any of its methods of
accounting or accounting practices in any material respect;

    (Q)  to the best of the Company's knowledge, no event has occurred that has
resulted in or that could reasonably be expected to result in the impairment of
the capitalized software asset reflected in the Company's books and records;

    (R)  none of the Acquired Corporations has made any material Tax election;

    (S)  none of the Acquired Corporations has commenced or settled any Legal
Proceeding;

    (T)  none of the Acquired Corporations has entered into any material
transaction or taken any other material action that has had, or would reasonably
be expected to have, a Material Adverse Effect on the Acquired Corporations;

    (U)  none of the Acquired Corporations has entered into any material
transaction or taken any other material action outside the ordinary course of
business or inconsistent with past practices; and

    (V)  none of the Acquired Corporations has agreed or committed to take any
of the actions referred to in clauses "(c)" through "(u)" above.

    2.6  TITLE TO ASSETS.  The Acquired Corporations own, and have good, valid
and marketable title to, all assets purported to be owned by them, including:
(i) all assets reflected on the Unaudited Interim Balance Sheet (except for
inventory sold or otherwise disposed of in the ordinary course of business since
the date of the Unaudited Interim Balance Sheet); and (ii) all other assets
reflected in the books and records of the Acquired Corporations as being owned
by the Acquired Corporations. All of said assets are owned by the Acquired
Corporations free and clear of any Encumbrances, except for (1) any lien for
current taxes not yet due and payable, (2) minor liens that have arisen in the
ordinary course of business and that do not (in any case or in the aggregate)
materially detract from the value of the assets subject thereto or materially
impair the operations of any of the Acquired Corporations, and (3) liens
described in Part 2.6 of the Company Disclosure Schedule.

    2.7  RECEIVABLES; CUSTOMERS.

    (A)  All existing accounts receivable of the Acquired Corporations
(including those accounts receivable reflected on the Unaudited Interim Balance
Sheet that have not yet been collected and those accounts receivable that have
arisen since September 30, 1999 and have not yet been collected) (i) represent
valid obligations of customers of the Acquired Corporations arising from bona
fide transactions entered into in the ordinary course of business and (ii) are
current and, to the best of the Company's knowledge, will be collected in full
when due, without any counterclaim or set off (net of an allowance for doubtful
accounts not to exceed $50,000 in the aggregate).

    (B)  Part 2.7 of the Company Disclosure Schedule accurately identifies, and
provides an accurate and complete breakdown of the revenues received from, each
customer or other Person that accounted for (i) more than $75,000 of the
consolidated gross revenues of the Acquired Corporations in fiscal year 1998 or
1999, or (ii) more than $75,000 of the Acquired Corporation's gross revenues in
the first three months of fiscal year 2000. Except as set forth in Part 2.7 of
the Company Disclosure Schedule, the Company has not received any notice or
other communication (in writing or otherwise) it believes is reliable that any
customer or other Person identified in Part 2.7 of the Company Disclosure
Schedule will cease dealing with the Company or will otherwise reduce the volume
of business transacted by such Person with the Company below historical levels.

                                      A-8
<PAGE>
    2.8  REAL PROPERTY; EQUIPMENT; LEASEHOLD.  All material items of equipment
and other tangible assets owned by or leased to the Acquired Corporations are
adequate for the uses to which they are being put, are in good and safe
condition and repair (ordinary wear and tear excepted) and are adequate for the
conduct of the business of the Acquired Corporations in the manner in which such
business is currently being conducted. None of the Acquired Corporations own any
real property or any interest in real property, except for the leaseholds
created under the real property leases identified in Part 2.8 of the Company
Disclosure Schedule.

    2.9  PROPRIETARY ASSETS.

    (A) (I)  Part 2.9(a)(i) of the Company Disclosure Schedule sets forth, with
respect to each Proprietary Asset owned by the Acquired Corporations and
registered with any Governmental Body or for which an application has been filed
with any Governmental Body: (A) a brief description of such Proprietary Asset;
and (B) the names of the jurisdictions covered by the applicable registration or
application.

        (II) Part 2.9(a)(ii) of the Company Disclosure Schedule identifies and
    provides a brief description of all other Proprietary Assets owned by the
    Acquired Corporations that are material to the business of the Acquired
    Corporations.

        (III) Part 2.9(a)(iii) of the Company Disclosure Schedule identifies and
    provides a brief description of, and identifies any ongoing royalty or
    payment obligations in excess of $25,000 with respect to, each Proprietary
    Asset that is licensed or otherwise made available to the Acquired
    Corporations by any Person and is material to the business of the Acquired
    Corporations (except for any Proprietary Asset that is licensed to the
    Acquired Corporations under any third party software license generally
    available to the public), and identifies the Contract under which such
    Proprietary Asset is being licensed or otherwise made available to such
    Acquired Corporation.

        (IV) The Acquired Corporations have good, valid and marketable title to
    all of the Acquired Corporation Proprietary Assets identified in Parts
    2.9(a)(i) and 2.9(a)(ii) of the Company Disclosure Schedule, free and clear
    of all Encumbrances, except for (A) any lien for current taxes not yet due
    and payable, and (B) minor liens that have arisen in the ordinary course of
    business and that do not (individually or in the aggregate) materially
    detract from the value of the assets subject thereto or materially impair
    the operations of either of the Acquired Corporations. The Acquired
    Corporations have a valid right to use, license and otherwise exploit all
    Proprietary Assets identified in Part 2.9(a)(iii) of the Company Disclosure
    Schedule. Except as set forth in Part 2.9(a)(iv) of the Company Disclosure
    Schedule, none of the Acquired Corporations has developed jointly with any
    other Person any Acquired Corporation Proprietary Asset that is material to
    the business of the Acquired Corporations with respect to which such other
    Person has any rights, it being acknowledged for this purpose Proprietary
    Assets do not include any data which a Person may have provided to the
    Company and "developed jointly" does not include any facility or assistance
    such Person may have provided the Company with respect to data acquisition,
    such data, facility and assistance are identified in Part 2.9(a)(iv) of the
    Company Disclosure Schedule.

    (B) Except as set forth in Part 2.9(b) of the Company Disclosure Schedule,
the Acquired Corporations have taken commercially reasonable measures and
precautions to protect and maintain the confidentiality, secrecy and value of
all material Acquired Corporation Proprietary Assets (except Acquired
Corporation Proprietary Assets whose value would be unimpaired by disclosure).
Without limiting the generality of the foregoing, except as set forth in
Part 2.9(b) of the Company Disclosure Schedule, (i) since January 23, 1998, all
current and former employees of the Acquired Corporations who are or were
involved in, or who have contributed to, the creation or development of any
material Acquired Corporation Proprietary Asset have executed and delivered to
the Acquired Corporations an agreement that is substantially identical to the
form of Employee Secrecy Agreement previously delivered by the Company to
Parent, and (ii) since February 15, 1989, all current and former consultants and
independent contractors to the Acquired

                                      A-9
<PAGE>
Corporations who are or were involved in, or who have contributed to, the
creation or development of any material Acquired Corporation Proprietary Asset
have executed and delivered to the Company an agreement that is substantially
identical to the form of Confidentiality Agreement previously delivered to
Parent. To the Company's knowledge, no current or former employee, officer,
director, stockholder, consultant or independent contractor has any right, claim
or interest in or with respect to any Acquired Corporation Proprietary Asset. To
the best of the Company's knowledge, no current or former employee, officer,
director, stockholder, consultant or independent contractor who has not signed
and delivered to the Acquired Corporations an Employee Secrecy Agreement is
competing against, soliciting customers or employees from or using Proprietary
Assets of, the Company.

    (C) To the best of the knowledge of the Company: (i) all patents,
trademarks, service marks and copyrights held by any of the Acquired
Corporations are valid and subsisting; (ii) none of the Acquired Corporation
Proprietary Assets and no Proprietary Asset that is currently being developed by
any of the Acquired Corporations (either by itself or with any other Person)
infringes or misappropriates any Proprietary Asset owned or used by any other
Person; (iii) none of the products that are or have been designed, created,
developed, assembled, manufactured or sold by any of the Acquired Corporations
is infringing, misappropriating or making any unlawful or unauthorized use of
any Proprietary Asset owned or used by any other Person, and none of such
products has at any time infringed, misappropriated or made any unlawful or
unauthorized use of, and none of the Acquired Corporations has received any
notice or other communication (in writing or otherwise) of any actual, alleged,
possible or potential infringement, misappropriation or unlawful or unauthorized
use of, any Proprietary Asset owned or used by any other Person; (iv) no other
Person is infringing, misappropriating or making any unlawful or unauthorized
use of, and no Proprietary Asset owned or used by any other Person infringes any
material Acquired Corporation Proprietary Asset.

    (D) The Acquired Corporation Proprietary Assets constitute all the
Proprietary Assets necessary to enable the Acquired Corporations to conduct
their business in the manner in which such business has been and is being
conducted. None of the Acquired Corporations has (i) licensed any of the
material Acquired Corporation Proprietary Assets to any Person on an exclusive
basis, or (ii) entered into any covenant not to compete or Contract limiting its
ability to exploit fully any material Acquired Corporation Proprietary Assets or
to transact business in any market or geographical area or with any Person.

    (E) Except as set forth in Part 2.9(e)(i) of the Company Disclosure
Schedule, none of the Acquired Corporations has disclosed or delivered to any
Person, or permitted the disclosure or delivery to any escrow agent or other
Person, of any Acquired Corporation Source Code. No event has occurred, and no
circumstance or condition exists, that (with or without notice or lapse of time)
will, or could reasonably be expected to, result in the disclosure or delivery
to any Person of any Acquired Corporation Source Code.

    (F) To the Company's knowledge, except with respect to demonstration or
trial copies, no product, system, program or software module designed and
developed by the Company which is currently sold, licensed or otherwise made
available by any of the Acquired Corporations to any Person contains any "back
door," "time bomb," "Trojan horse," "worm," "drop dead device," "virus" or other
software routines or hardware components designed to permit unauthorized access
or to disable or erase software, hardware or data without the consent of the
user. All Company software and hardware upgrades scheduled to be completed by
June 1999 (as set forth in Form 10-QSB filed by the Company with the SEC on
May 12, 1999) intended by the Company to make such software and hardware Year
2000 Compliant have been completed.

                                      A-10
<PAGE>
    2.10  CONTRACTS.

    (A) Part 2.10 of the Company Disclosure Schedule identifies each Acquired
Corporation Contract that constitutes a "Material Contract." (For purposes of
this Agreement, each of the following shall be deemed to constitute a "Material
Contract":

        (I) any Contract within the scope of subsection (x) hereof relating to
    the employment of, or the performance of services by, any employee,
    consultant or independent contractor; PROVIDED, HOWEVER, that
    Part 2.10(a)(i) of the Company Disclosure Schedule provides a list of all
    Contracts relating to the employment of, or the performance of services by,
    any employee, consultant or independent contractor regardless of whether
    such Contracts are within the scope of subsection (x) hereof;

        (II) any Contract within the scope of subsection (x) hereof relating to
    the acquisition, transfer, use, development, sharing or license of any
    material technology or any Proprietary Asset;

        (III) any Contract which provides for indemnification of any officer,
    director, employee or agent;

        (IV) any Contract imposing any restriction on the right or ability of
    any Acquired Corporation (A) to compete with any other Person, (B) to
    acquire any product or other asset or any services from any other Person,
    (C) to solicit, hire or retain any Person as an employee, consultant or
    independent contractor, (D) to develop, sell, supply, distribute, offer,
    support or service any product or any technology or other asset to or for
    any other Person, (E) to perform services for any other Person, or (F) to
    transact business or deal in any other manner with any other Person;

        (V) any Contract (A) relating to the acquisition, issuance, voting,
    registration, sale or transfer of any securities;

        (VI) any Contract incorporating or relating to any guaranty, any
    warranty or any indemnity or similar obligation, except for Contracts
    substantially identical to the standard forms of end-user licenses
    previously delivered by the Company to Parent and routine endorsements of
    negotiable instruments;

        (VII) any Contract relating to any currency hedging;

        (VIII) any Contract imposing any confidentiality obligation on any of
    the Acquired Corporations;

        (IX) any Contract requiring that any of the Acquired Corporations give
    any notice or provide any information to any Person prior to considering or
    accepting any Acquisition Proposal or similar proposal, or prior to entering
    into any discussions, agreement, arrangement or understanding relating to
    any Acquisition Transaction or similar transaction;

        (X) any Contract that has a term of more than 60 days and that may not
    be terminated by an Acquired Corporation (without penalty) within 60 days
    after the delivery of a termination notice by such Acquired Corporation;

        (XI) any Contract that contemplates or involves the payment or delivery
    of cash or other consideration in an amount or having a value in excess of
    $100,000 in the aggregate, or contemplates or involves the performance of
    services having a value in excess of $100,000 in the aggregate;

        (XII) any Contract (not otherwise identified in clauses "(i)" through
    "(xi)" of this sentence) that could reasonably be expected to have a
    material effect on the business, condition, capitalization, assets,
    liabilities, operations or financial performance of any of the Acquired
    Corporations or to any of the transactions contemplated by this Agreement;
    and

        (XIII) any other Contract, if a breach of such Contract could reasonably
    be expected to have a Company Material Adverse Effect.

                                      A-11
<PAGE>
Except as provided in Part 2.10 of the Company Disclosure Schedules, the Company
has delivered to Parent an accurate and complete copy of each form of
subscription agreement and each other Material Contract.

    (B) Except as provided in Part 2.10 of the Company Disclosure Schedule, each
Acquired Corporation Contract that constitutes a Material Contract is, to the
Company's knowledge, valid and in full force and effect, and, to the Company's
knowledge, is enforceable in accordance with its terms, subject to (i) laws of
general application relating to bankruptcy, insolvency and the relief of
debtors, and (ii) rules of law governing specific performance, injunctive relief
and other equitable remedies.

    (C) Except as set forth in Part 2.10 of the Company Disclosure Schedule:
(i) none of the Acquired Corporations has violated or breached, or committed any
default under, any Acquired Corporation Contract, except for violations,
breaches and defaults that have not had and would not reasonably be expected to
have a Company Material Adverse Effect; and, to the best of the knowledge of the
Company, no other Person has violated or breached, or committed any default
under, any Acquired Corporation Contract, except for violations, breaches or
defaults that have not had and would not reasonably be expected to have a
Company Material Adverse Effect; (ii) to the best of the knowledge of the
Company, no event has occurred, and no circumstance or condition exists, that
(with or without notice or lapse of time) will, or would reasonably be expected
to, (A) result in a violation or breach of any of the provisions of any Acquired
Corporation Contract, (B) give any Person the right to declare a default or
exercise any remedy under any Acquired Corporation Contract, (C) give any Person
the right to receive or require a rebate, chargeback, penalty or change in
delivery schedule under any Acquired Corporation Contract, (D) give any Person
the right to accelerate the maturity or performance of any Acquired Corporation
Contract, (E) result in the disclosure, release or delivery of any Acquired
Corporation Source Code, or (F) give any Person the right to cancel, terminate
or modify any Acquired Corporation Contract, except in each such case for
defaults, acceleration rights, termination rights and other rights that have not
had and would not reasonably be expected to have a Company Material Adverse
Effect; and (iii) none of the Acquired Corporations has received any notice or
other communication regarding any actual or possible violation or breach of, or
default under, any Acquired Corporation Contract, except in each such case for
defaults, acceleration rights, termination rights and other rights that have not
had and would not reasonably be expected to have a Company Material Adverse
Effect.

    2.11  SALE OF PRODUCTS; PERFORMANCE OF SERVICES.

    (A) To the best of the Company's knowledge, except as set forth in
Part 2.11(a) of the Company Disclosure Schedule, each product, system, program,
Proprietary Asset or other asset designed, developed, manufactured, assembled,
sold, installed, repaired, licensed or otherwise made available by any of the
Acquired Corporations to any Person:

        (I) conformed and complied in all material respects with the terms and
    requirements of any applicable warranty or other Contract and with
    applicable Legal Requirements; and

        (II) was free of any bug, virus, design defect or other defect or
    deficiency at the time it was sold or otherwise made available, other than
    any immaterial bug or similar defect that would not adversely affect in any
    material respect such product, system, program, Acquired Corporation
    Proprietary Asset or other asset (or the operation or performance thereof).

    (B) Except as set forth in Part 2.11 of the Company Disclosure Schedule, no
customer or other Person has asserted or threatened to assert any claim against
any of the Acquired Corporations (a) under or based upon any warranty provided
by or on behalf of any of the Acquired Corporations, or (b) under or based upon
any other warranty relating to any product, system, program, Proprietary Asset
or other asset designed, developed, manufactured, assembled, sold, installed,
repaired, licensed or otherwise made available by any of the Acquired
Corporations or any services performed by any of the Acquired Corporations.

                                      A-12
<PAGE>
    2.12  LIABILITIES.  None of the Acquired Corporations has any accrued,
contingent or other liabilities of any nature, either matured or unmatured,
except for: (a) liabilities identified as such in the "liabilities" column of
the audited Balance Sheet as at June 30, 1999 not subsequently discharged;
(b) liabilities identified as such in the "liabilities" column of the Unaudited
Interim Balance Sheet; (c) normal and recurring liabilities that have been
incurred by the Acquired Corporations since September 30, 1999 in the ordinary
course of business and consistent with past practices; and (d) liabilities
described in Part 2.12 of the Company Disclosure Schedule.

    2.13  COMPLIANCE WITH LEGAL REQUIREMENTS.  Each of the Acquired Corporations
is, and has at all times since its formation been, in compliance with all
applicable Legal Requirements, except where the failure to comply with such
Legal Requirement has not had and would not reasonably be expected to have a
Company Material Adverse Effect. None of the Acquired Corporations has received
any notice from any Governmental Body or other Person regarding any actual or
alleged violation of, or failure to comply with, any Legal Requirement.

    2.14  CERTAIN BUSINESS PRACTICES.  None of the Acquired Corporations nor (to
the best of the knowledge of the Company) any director, officer, agent or
employee of any of the Acquired Corporations has (i) used any funds for unlawful
contributions, gifts, entertainment or other unlawful expenses relating to
political activity, (ii) made any unlawful payment to foreign or domestic
government officials or employees or to foreign or domestic political parties or
campaigns or violated any provision of the Foreign Corrupt Practices Act of
1977, as amended, or (iii) made any other unlawful payment.

    2.15  GOVERNMENTAL AUTHORIZATIONS.  The Acquired Corporations hold all
Governmental Authorizations necessary to enable the Acquired Corporations to
conduct their respective businesses in the manner in which such businesses are
currently being conducted, except where the failure to hold such Governmental
Authorizations has not had and would not reasonably be expected to have a
Company Material Adverse Effect. All such Governmental Authorizations are valid
and in full force and effect. Each Acquired Corporation is, and at all times
since its formation has been, in substantial compliance with the terms and
requirements of such Governmental Authorizations, except where the failure to be
in compliance with the terms and requirements of such Governmental
Authorizations has not had and would not reasonably be expected to have a
Company Material Adverse Effect. None of the Acquired Corporations has received
any notice from any Governmental Body regarding (a) any actual or alleged
violation of or failure to comply with any term or requirement of any material
Governmental Authorization, or (b) any actual or threatened revocation,
withdrawal, suspension, cancellation, termination or modification of any
material Governmental Authorization.

    2.16  TAX MATTERS.

    (A) Since July 1, 1997: (I) Each Tax Return required to be filed by or on
behalf of the respective Acquired Corporations with any Governmental Body (the
"Acquired Corporation Returns") (A) was timely filed on or before the applicable
due date, and (B) was prepared in all material respects in compliance with all
applicable Legal Requirements. All amounts shown on the Acquired Corporation
Returns to be due have been paid;

        (II) The Unaudited Interim Balance Sheet fully accrues all actual and
    contingent liabilities for Taxes with respect to all periods through
    September 30, 1999 in accordance with generally accepted accounting
    principles. Each Acquired Corporation will establish, in the ordinary course
    of business and consistent with its past practices, reserves adequate for
    the payment of all Taxes for the period from September 30, 1999 through the
    Closing Date, and will disclose the amount of such reserves to Parent no
    later than 10 business days prior to the Closing Date. Since September 30,
    1999, none of the Acquired Corporations has incurred any Liability for any
    Tax other than in the ordinary course of its business;

                                      A-13
<PAGE>
        (III) No Acquired Corporation Return is currently the subject of any
    examination or audit by any Governmental Body and no Acquired Corporation
    return relating to Federal or State income taxes has ever been audited by
    any Governmental Body. No extension or waiver of the limitation period
    applicable to any of the Acquired Corporation Returns is currently
    outstanding (by the Company or any other Person), and no such extension or
    waiver has been requested from any Acquired Corporation;

        (IV) No claim or Legal Proceeding is pending or, to the best of the
    knowledge of the Company, has been threatened against or with respect to any
    Acquired Corporation in respect of any material Tax. There are no
    unsatisfied liabilities for material Taxes (including liabilities for
    interest, additions to tax and penalties thereon and related expenses) with
    respect to any notice of deficiency or similar document received by any
    Acquired Corporation with respect to any material Tax (other than
    liabilities for Taxes asserted under any such notice of deficiency or
    similar document which are being contested in good faith by the Acquired
    Corporations and with respect to which adequate reserves for payment have
    been established on the Unaudited Interim Balance Sheet). There are no liens
    for material Taxes upon any of the assets of any of the Acquired
    Corporations except liens for current Taxes not yet due and payable. None of
    the Acquired Corporations has entered into or become bound by any agreement
    or consent pursuant to Section 341(f) of the Code (or any comparable
    provision of state or foreign Tax laws). None of the Acquired Corporations
    has been, and none of the Acquired Corporations will be, required to include
    any adjustment in taxable income for any tax period (or portion thereof)
    pursuant to Section 481 or 263A of the Code (or any comparable provision
    under state or foreign Tax laws) as a result of transactions or events
    occurring, or accounting methods employed, prior to the Closing.

        (V) There is no agreement, plan, arrangement or other Contract covering
    any employee or independent contractor or former employee or independent
    contractor of any of the Acquired Corporations that, considered individually
    or considered collectively with any other such Contracts, will, or could
    reasonably be expected to, give rise directly or indirectly to the payment
    of any amount that would not be deductible pursuant to Section 280G or
    Section 162 of the Code (or any comparable provision under state or foreign
    Tax laws). Except as set forth in Part 2.16(a) of the Company disclosure
    Schedule, none of the Acquired Corporations is, or has ever been, a party to
    or bound by any tax indemnity agreement, tax sharing agreement, tax
    allocation agreement or similar Contract.

    (B) The Company is not liable to pay any Tax in respect of any period ending
on or before June 30, 1997.

    2.17  EMPLOYEE AND LABOR MATTERS; BENEFIT PLANS.

    (A) Part 2.17(a) of the Company Disclosure Schedule identifies each salary,
bonus, deferred compensation, incentive compensation, stock purchase, stock
option, severance pay, termination pay, hospitalization, medical, insurance,
supplemental unemployment benefits, profit-sharing, pension or retirement plan,
program or agreement maintained, sponsored, contributed to or required to be
contributed to by any of the Acquired Corporations for the benefit of any
current or former employee, director or consultant of any of the Acquired
Corporations. (All plans, programs and agreements of the type referred to in the
prior sentence are referred to in this Agreement as the "Plans.")

    (B) Except as set forth in Part 2.17(a) of the Company Disclosure Schedule,
none of the Acquired Corporations maintains, sponsors or contributes to, and
none of the Acquired Corporations has at any time in the past maintained,
sponsored or contributed to, any employee pension benefit plan (as defined in
Section 3(2) of the Employee Retirement Income Security Act of 1974, as amended
("ERISA")) or any similar pension benefit plan under the laws of any foreign
jurisdiction, whether or not excluded from coverage under specific Titles or
Merger Subtitles of ERISA), for the benefit of any current or former employee or
director of any of the Acquired Corporations (a "Pension Plan").

                                      A-14
<PAGE>
    (C) Except as set forth in Part 2.17(a) of the Company Disclosure Schedule,
none of the Acquired Corporations maintains, sponsors or contributes to any:
(i) employee welfare benefit plan (as defined in Section 3(1) of ERISA) or any
similar welfare benefit plan under the laws of any foreign jurisdiction, whether
or not excluded from coverage under specific Titles or Merger Subtitles of
ERISA, for the benefit of any current or former employee or director of any of
the Acquired Corporations (a "Welfare Plan"), or (ii) self-funded medical,
dental or other similar Plan. None of the Plans identified in the Company
Disclosure Schedule is a multiemployer plan (within the meaning of
Section 3(37) of ERISA).

    (D) With respect to each Plan, the Company has delivered to Parent: (i) an
accurate and complete copy of such Plan (including all amendments thereto);
(ii) an accurate and complete copy of the annual report, if required under
ERISA, with respect to such Plan for each of the last two years; (iii) an
accurate and complete copy of the most recent summary plan description, together
with each Summary of Material Modifications, if required under ERISA, with
respect to such Plan, (iv) if such Plan is funded through a trust or any third
party funding vehicle, an accurate and complete copy of the trust or other
funding agreement (including all amendments thereto) and accurate and complete
copies the most recent financial statements thereof; (v) accurate and complete
copies of all Contracts relating to such Plan, including service provider
agreements, insurance contracts, minimum premium contracts, stop-loss
agreements, investment management agreements, subscription and participation
agreements and recordkeeping agreements; and (vi) an accurate and complete copy
of the most recent determination letter received from the Internal Revenue
Service with respect to such Plan (if such Plan is intended to be qualified
under Section 401(a) of the Code).

    (E) None of the Acquired Corporations is or has ever been required to be
treated as a single employer with any other Person under Section 4001(b)(1) of
ERISA or Section 414(b), (c), (m) or (o) of the Code. None of the Acquired
Corporations has ever been a member of an "affiliated service group" within the
meaning of Section 414(m) of the Code. None of the Acquired Corporations has
ever made a complete or partial withdrawal from a multiemployer plan, as such
term is defined in Section 3(37) of ERISA, resulting in "withdrawal liability,"
as such term is defined in Section 4201 of ERISA (without regard to any
subsequent reduction or waiver of such liability under either Section 4207 or
4208 of ERISA).

    (F) None of the Acquired Corporations has any plan or commitment to create
any Welfare Plan or any Pension Plan, or to modify or change any existing
Welfare Plan or Pension Plan (other than to comply with applicable law) in a
manner that would affect any current or former employee or director of any of
the Acquired Corporations.

    (G) No Plan provides death, medical or health benefits (whether or not
insured) with respect to any current or former employee or director of any of
the Acquired Corporations after any termination of service of such employee or
director (other than (i) benefit coverage mandated by applicable law, including
coverage provided pursuant to Section 4980B of the Code, (ii) deferred
compensation benefits accrued as liabilities on the Unaudited Interim Balance
Sheet, and (iii) benefits the full cost of which are borne by current or former
employees or directors of any of the Acquired Corporations (or their
beneficiaries)).

    (H) With respect to any Plan constituting a group health plan within the
meaning of Section 4980B(g)(2) of the Code, the provisions of Section 4980B of
the Code ("COBRA") have been complied with in all material respects.

    (I) Each of the Plans has been operated and administered in all material
respects in accordance with applicable Legal Requirements, including ERISA, the
Code and applicable foreign Legal Requirements.

    (J) Each of the Plans intended to be qualified under Section 401(a) of the
Code has received a favorable determination letter from the Internal Revenue
Service, and the Company is not aware of any reason why any such determination
letter could be revoked.

    (K) Except as set forth in Part 2.17(k) of the Company Disclosure Schedule,
neither the execution, delivery or performance of this Agreement, nor the
consummation of the Merger or any of the other

                                      A-15
<PAGE>
transactions contemplated by this Agreement, will result in any bonus, golden
parachute, severance or other payment or obligation to any current or former
employee or director of any of the Acquired Corporations (whether or not under
any Plan), or materially increase the benefits payable or provided under any
Plan, or result in any acceleration of the time of payment, provision or vesting
of any such benefits.

    (L) Part 2.17(l) of the Company Disclosure Schedule identifies each employee
of each of the Acquired Corporations as of the date of this Agreement, and
correctly reflects, in all material respects, the current salary and any other
compensation payable to such employee (including compensation payable pursuant
to bonus, deferred compensation or commission arrangements), such employee's
employer, date of hire and position and the principal office of such employee.
None of the Acquired Corporations is a party to any collective bargaining
contract or other Contract with a labor union involving any of its employees.
Except as set forth in Schedule 2.17(l), all of the employees of the Acquired
Corporations are "at will" employees.

    (M) Part 2.17(m) of the Company Disclosure Schedule identifies each employee
of any of the Acquired Corporations who is not fully available to perform work
because of disability or other leave and sets forth the basis of such disability
or leave and the anticipated date of such employee's return to full service.

    (N) Each of the Acquired Corporations is in compliance in all material
respects with all applicable Legal Requirements and Contracts relating to
employment, employment practices, wages, bonuses and terms and conditions of
employment, including employee compensation matters.

    (O) Each of the Acquired Corporations has good labor relations, and the
Company has no knowledge of any facts indicating that (i) the consummation of
the Merger or any of the other transactions contemplated by this Agreement will
have a material adverse effect on the labor relations of any of the Acquired
Corporations, or (ii) any of the employees of any of the Acquired Corporations
intends to terminate his or her employment with such Acquired Corporation.

    2.18  ENVIRONMENTAL MATTERS.  Each of the Acquired Corporations is in
compliance in all material respects with all applicable Environmental Laws,
which compliance includes the possession by each of the Acquired Corporations of
all permits and other Governmental Authorizations required under applicable
Environmental Laws, and compliance with the terms and conditions thereof. None
of the Acquired Corporations has received any notice whether from a Governmental
Body, citizens group, employee or otherwise, that alleges that any of the
Acquired Corporations is not in compliance with any Environmental Law, and, to
the best of the knowledge of the Company, there are no circumstances that may
prevent or interfere with the compliance by any of the Acquired Corporations
with any Environmental Law in the future. To the best of the knowledge of the
Company, no current or prior owner of any property leased or controlled by any
of the Acquired Corporations has received any notice, whether from a Government
Body, citizens group, employee or otherwise, that alleges that such current or
prior owner or any of the Acquired Corporations is not in compliance with any
Environmental Law. All Governmental Authorizations currently held by the Company
pursuant to Environmental Laws are identified in Part 2.18 of the Disclosure
Schedule. (For purposes of this Section 2.18: (A) "Environmental Law" means any
federal, state, local or foreign Legal Requirement relating to pollution or
protection of human health or the environment (including ambient air, surface
water, ground water, land surface or subsurface strata), including any law or
regulation relating to emissions, discharges, releases or threatened releases of
Materials of Environmental Concern, or otherwise relating to the manufacture,
processing, distribution, use, treatment, storage, disposal, transport or
handling of Materials of Environmental Concern; and (B) "Materials of
Environmental Concern" include chemicals, pollutants, contaminants, wastes,
toxic substances, petroleum and petroleum products and any other substance that
is inherently a danger to health, reproduction or the environment.)

    2.19  INSURANCE.  The Company has delivered to Parent a copy of all material
insurance policies and all material self insurance programs and arrangements
relating to the business, assets and operations of the Acquired Corporations.
Each of such insurance policies is in full force and effect. None of the
Acquired

                                      A-16
<PAGE>
Corporations has received any notice or other communication regarding any actual
or possible (a) cancellation or invalidation of any insurance policy,
(b) refusal of any coverage or rejection of any material claim under any
insurance policy, or (c) material adjustment in the amount of the premiums
payable with respect to any insurance policy. Except as set forth in Part 2.19
of the Company Disclosure Schedule, to the Company's knowledge, there is no
pending workers' compensation or other claim under or based upon any insurance
policy of any of the Acquired Corporations.

    2.20  TRANSACTIONS WITH AFFILIATES.  Except as set forth in the Company SEC
Reports, since the date of the Company's last proxy statement filed with the
SEC, no event has occurred that would be required to be reported by the Company
pursuant to Item 404 of Regulation S-K promulgated by the SEC. Part 2.20 of the
Company Disclosure Schedule identifies each person who is (or who may be deemed
to be) an "affiliate" (as that term is used in Rule 145 under the Securities
Act) of the Company as of the date of this Agreement.

    2.21  LEGAL PROCEEDINGS; ORDERS.  Part 2.21 of the Company Disclosure
Schedule provides a list of all Legal Proceedings, material orders, writs,
injunctions, judgments or decrees to which the Company is presently subject.

    2.22  AUTHORITY; INAPPLICABILITY OF ANTI-TAKEOVER STATUTES; BINDING NATURE
OF AGREEMENT.  The Company has the absolute and unrestricted corporate right,
power and authority to enter into and, subject to the requisite approval of the
Company's stockholders, to perform its obligations under this Agreement. The
board of directors of the Company (at a meeting duly called and held) has
(a) determined that the Merger is advisable and fair and in the best interests
of the Company and its stockholders, (b) authorized and approved the execution,
delivery and performance of this Agreement by the Company and approved the
Merger, and (c) recommended the approval of this Agreement and the Merger by the
holders of Company Common Stock and directed that this Agreement and the Merger
be submitted for consideration by the Company's stockholders at the Company
Stockholders' Meeting (as defined in Section 5.2). This Agreement constitutes
the legal, valid and binding obligation of the Company, enforceable against the
Company in accordance with its terms, subject to (i) laws of general application
relating to bankruptcy, insolvency and the relief of debtors, and (ii) rules of
law governing specific performance, injunctive relief and other equitable
remedies.

    2.23  INAPPLICABILITY OF SECTION 2115 OF CALIFORNIA CORPORATIONS CODE.  More
than one-half of the Company's outstanding voting securities are held of record
by persons having addresses outside the State of California. For purposes of the
foregoing, any securities held in the names of broker-dealers, nominees for
broker-dealer or other entities in a nominee name or otherwise on behalf of a
beneficial owner shall not be considered outstanding.

    2.24  VOTE REQUIRED.  Assuming the accuracy of the Parent's representation
in Section 3.8 below, the affirmative vote of the holders of a majority of the
shares of Company Common Stock outstanding on the record date for the Company
Stockholders' Meeting (the "Required Company Stockholder Vote") is the only vote
of the holders of any class or series of the Company's capital stock necessary
to approve this Agreement, the Merger and the other transactions contemplated by
this Agreement.

    2.25  NON-CONTRAVENTION; CONSENTS.  Except as disclosed in Part 2.25 of the
Company Disclosure Schedule, neither (1) the execution, delivery or performance
of this Agreement or any of the other agreements referred to in this Agreement,
nor (2) the consummation of the Merger or any of the other transactions
contemplated by this Agreement, will (with or without notice or lapse of time)
solely by reason of any act or omission of the Company:

    (A) contravene, conflict with or result in a violation of (i) any of the
provisions of the certificate of incorporation, bylaws or other charter or
organizational documents of any of the Acquired Corporations,

                                      A-17
<PAGE>
or (ii) any resolution adopted by the stockholders, the board of directors or
any committee of the board of directors of any of the Acquired Corporations;

    (B) contravene, conflict with or result in a violation of, or give any
Governmental Body or other Person the right to challenge the Merger or any of
the other transactions contemplated by this Agreement or to exercise any remedy
or obtain any relief under, any Legal Requirement or any order, writ,
injunction, judgment or decree to which any of the Acquired Corporations, or any
of the assets owned or used by any of the Acquired Corporations, is subject;

    (C) contravene, conflict with or result in a violation of any of the terms
or requirements of, or give any Governmental Body the right to revoke, withdraw,
suspend, cancel, terminate or modify, any Governmental Authorization that is
held by any of the Acquired Corporations or that otherwise relates to the
business of any of the Acquired Corporations or to any of the assets owned or
used by any of the Acquired Corporations;

    (D) contravene, conflict with or result in a violation or breach of, or
result in a default under, any provision of any Acquired Corporation Contract
that is or would constitute a Material Contract, or give any Person the right to
(i) declare a default or exercise any remedy under any such Acquired Corporation
Contract, (ii) a rebate, chargeback, penalty or change in delivery schedule
under any such Acquired Corporation Contract, (iii) accelerate the maturity or
performance of any such Acquired Corporation Contract, or (iv) cancel, terminate
or modify any term of such Acquired Corporation Contract;

    (E) result in the imposition or creation of any Encumbrance upon or with
respect to any asset owned or used by any of the Acquired Corporations (except
for minor liens that will not, in any case or in the aggregate, materially
detract from the value of the assets subject thereto or materially impair the
operations of any of the Acquired Corporations); or

    (F) result in, or increase the likelihood of, the disclosure or delivery to
any escrowholder or other Person of the Acquired Corporation Source Code, or the
transfer of any material asset of any of the Acquired Corporations to any
Person.

Except as may be required by the Securities Act, the Exchange Act, the DGCL, the
HSR Act and the NASD Bylaws (as they relate to the Form S-4 Registration
Statement and the Prospectus/Proxy Statement), none of the Acquired Corporations
was, is or will be required to make any filing with or give any notice to, or to
obtain any Consent from, any Person in connection with (x) the execution,
delivery or performance of this Agreement or any of the other agreements
referred to in this Agreement, or (y) the consummation of the Merger or any of
the other transactions contemplated by this Agreement.

    2.26  BROKERS FEE.  No broker, finder or investment banker is entitled to
any brokerage, finder's or other fee or commission in connection with the Merger
or any of the other transactions contemplated by this Agreement based upon
arrangements made by or on behalf of any of the Acquired Corporations.

    2.27  ACCOUNTING MATTERS.  To the best of the knowledge of the Company on
the date of this Agreement, neither the Company nor any affiliate (as that term
is used in Rule 145 under the Securities Act) of any of the Acquired
Corporations has taken or agreed to take, or plans to take, any action that
could prevent Parent from accounting for the Merger as a "pooling of interests;"
PROVIDED, HOWEVER, Parent acknowledges that Company is not an expert in
accounting and has not received any opinion concerning same from its independent
auditors.

                                      A-18
<PAGE>
    2.28  FULL DISCLOSURE.  None of the information supplied or to be supplied
by or on behalf of the Company for inclusion or incorporation by reference in
the Form S-4 Registration Statement will, at the time the Form S-4 Registration
Statement becomes effective under the Securities Act, contain any untrue
statement of a material fact or omit to state any material fact required to be
stated therein or necessary in order to make the statements therein, in the
light of the circumstances under which they are made, not misleading. None of
the information supplied or to be supplied by or on behalf of the Company for
inclusion or incorporation by reference in the Prospectus/Proxy Statement will,
at the time the Prospectus/ Proxy Statement is mailed to the stockholders of the
Company or at the time of the Company Stockholders' Meeting, contain any untrue
statement of a material fact or omit to state any material fact required to be
stated therein or necessary in order to make the statements therein, in the
light of the circumstances under which they are made, not misleading. The
Prospectus/Proxy Statement will comply as to form in all material respects with
the provisions of the Exchange Act and the rules and regulations promulgated by
the SEC thereunder except that no representation or warranty is made by the
Company with respect to statements made or incorporated therein based on
information supplied by Parent for inclusion or incorporation by reference in
the Prospectus/Proxy Statement.

SECTION 3.  REPRESENTATIONS AND WARRANTIES OF PARENT AND MERGER SUB

    Parent and Merger Sub represent and warrant to the Company as follows:

    3.1  ORGANIZATION, STANDING AND POWER.  Each of Parent and Merger Sub is a
corporation duly organized, validly existing and in good standing under the laws
of the State of Delaware and has all necessary power and authority: (a) to
conduct its business in the manner in which its business is currently being
conducted; (b) to own and use its assets in the manner in which its assets are
currently owned and used; and (c) to perform its obligations under all Contracts
by which it is bound. Each of Parent and Merger Sub is duly qualified to do
business as a foreign corporation, and is in good standing, under the laws of
all jurisdictions where the nature of its business requires such qualification
and where the failure to be so qualified would have a Material Adverse Effect on
Parent.

    3.2  SEC FILINGS; FINANCIAL STATEMENTS.

    (A)  Parent has delivered or made available to the Company (including
through the SEC EDGAR system) accurate and complete copies (excluding copies of
exhibits) of each report, registration statement and definitive proxy statement
filed by Parent with the SEC between December 31, 1997 and the date of this
Agreement (the "Parent SEC Documents"). As of the time it was filed with the SEC
(or, if amended or superseded by a filing prior to the date of this Agreement,
then on the date of such filing): (i) each of the Parent SDocuments complied in
all material respects with the applicable requirements of the Securities Act or
the Exchange Act (as the case may be); and (ii) none of the Parent SEC Documents
contained any untrue statement of a material fact or omitted to state a material
fact required to be stated therein or necessary in order to make the statements
therein, in the light of the circumstances under which they were made, not
misleading.

    (B)  The consolidated financial statements contained in the Parent SEC
Documents: (i) complied as to form in all material respects with the published
rules and regulations of the SEC applicable thereto; (ii) were prepared in
accordance with generally accepted accounting principles applied on a consistent
basis throughout the periods covered (except as may be indicated in the notes to
such financial statements and, in the case of unaudited statements, as permitted
by Form 10-Q of the SEC, and except that unaudited financial statements may not
contain footnotes and are subject to year-end audit adjustments); and
(iii) fairly present the consolidated financial position of Parent and its
subsidiaries as of the respective dates thereof and the consolidated results of
operations of Parent and its subsidiaries for the periods covered thereby.

    3.3  DISCLOSURE.  None of the information to be supplied by or on behalf of
Parent for inclusion in the Form S-4 Registration Statement will, at the time
the Form S-4 Registration Statement becomes

                                      A-19
<PAGE>
effective under the Securities Act, contain any untrue statement of a material
fact or omit to state any material fact required to be stated therein or
necessary in order to make the statements therein, in the light of the
circumstances under which they are made, not misleading. None of the information
to be supplied by or on behalf of Parent for inclusion in the Prospectus/Proxy
Statement will, at the time the Prospectus/ Proxy Statement is mailed to the
stockholders of the Company or at the time of the Company Stockholders' Meeting,
contain any untrue statement of a material fact or omit to state any material
fact required to be stated therein or necessary in order to make the statements
therein, in the light of the circumstances under which they are made, not
misleading. The Prospectus/Proxy Statement will comply as to form in all
material respects with the provisions of the Exchange Act and the rules and
regulations promulgated by the SEC thereunder, except that no representation or
warranty is made by Parent with respect to statements made or incorporated by
reference therein based on information supplied by the Company for inclusion or
incorporation by reference in the Prospectus/Proxy Statement.

    3.4  AUTHORITY; BINDING NATURE OF AGREEMENT.  Parent and Merger Sub have the
absolute and unrestricted right, power and authority to perform their
obligations under this Agreement; and the execution, delivery and performance by
Parent and Merger Sub of this Agreement have been duly authorized by all
necessary action on the part of Parent and Merger Sub and their respective
boards of directors. This Agreement constitutes the legal, valid and binding
obligation of Parent and Merger Sub, enforceable against them in accordance with
its terms, subject to (i) laws of general application relating to bankruptcy,
insolvency and the relief of debtors, and (ii) rules of law governing specific
performance, injunctive relief and other equitable remedies.

    3.5  NO VOTE REQUIRED.  No vote of the holders of Parent Common Stock is
required to authorize the Merger.

    3.6  NON-CONTRAVENTION; CONSENTS.  Neither the execution and delivery of
this Agreement by Parent and Merger Sub nor the consummation by Parent and
Merger Sub of the Merger will, with or without notice or lapse of time,
(a) conflict with or result in any breach of any provision of the certificate of
incorporation or bylaws of Parent or the certificate of incorporation or bylaws
of Merger Sub, (b) result in a default by Parent or Merger Sub under any
Contract to which Parent or Merger Sub is a party, except for any default which
has not had and will not have a Material Adverse Effect on Parent, or
(c) result in a violation by Parent or Merger Sub of any order, writ,
injunction, judgment or decree to which Parent or Merger Sub is subject, except
for any violation which has not had and will not have a Material Adverse Effect
on Parent. Except as may be required by the Securities Act, the Exchange Act,
state securities or "blue sky" laws, the DGCL, the HSR Act and the NASD Bylaws
(as they relate to the S-4 Registration Statement and the Prospectus/Proxy
Statement), Parent is not and will not be required to make any filing with or
give any notice to, or to obtain any Consent from, any Person in connection with
the execution, delivery or performance of this Agreement or the consummation of
the Merger or any of the other transactions contemplated by this Agreement.

    3.7  VALID ISSUANCE.  The Parent Common Stock to be issued in the Merger
will, when issued in accordance with the provisions of this Agreement, be
validly issued, fully paid and nonassessable and upon consummation of the
Merger, the shareholders of the Acquired Corporations will receive good and
marketable title thereto free of Encumbrances.

    3.8  NO INTEREST IN COMPANY SECURITIES.  None of Parent nor any of its
Subsidiaries beneficially owns, within the meaning of Section 13(d) of the
Exchange Act and Regulation 13D-G promulgated thereunder, any interest in any
securities of the Company.

                                      A-20
<PAGE>
SECTION 4.  CERTAIN COVENANTS OF THE COMPANY

    4.1  ACCESS AND INVESTIGATION.

    (A)  Subject to subparagraph (b) below, during the period from the date of
this Agreement through the Effective Time (the "Pre-Closing Period"), the
Company shall, and shall cause the respective Representatives of the Acquired
Corporations to: (i) provide Parent and Parent's Representatives with reasonable
access, at reasonable times and upon reasonable notice, to the Acquired
Corporations' Representatives, personnel and assets and to all existing books,
records, Tax Returns, work papers and other documents and information relating
to the Acquired Corporations; and (ii) provide Parent and Parent's
Representatives with such copies of the existing books, records, Tax Returns,
work papers and other documents and information relating to the Acquired
Corporations, and with such additional financial, operating and other data and
information regarding the Acquired Corporations, as Parent may reasonably
request.

    (B)  Notwithstanding the foregoing, information relating to the subject
matter identified on Schedule 4.1 hereto shall be provided or made available to
the Parent no fewer than ten days prior to the Closing Date provided the Company
has received a duly executed certificate from a duly authorized senior executive
officer of Parent stating that to the best knowledge of Parent and except for
the information to be provided under this subsection (b): (i) Parent has
reviewed all materials requested of or provided to Parent or its Representative
by or on behalf of the Company; (ii) Parent has completed all other
investigations, examinations or inquiries it desired to make of any personnel,
records, papers, books or other information pertaining to the Acquired
Corporations; and (iii) it believes that all of the other representations and
warranties made by the Company which by their terms are subject to a Company
Material Adverse Effect qualification are accurate in all material respects on
the date of such certificate and that, with respect to all other representations
and warranties of the Company, there is no inaccuracy, omission or
misrepresentation which, individually or in the aggregate, constitutes a Company
Material Adverse Effect on such date. It is acknowledged that solely for
purposes of exercising its indemnification rights under Article 9 hereof, the
certificate referred to in this subsection (b) shall not constitute an estoppel,
or waiver by Parent with respect to any breach of the Company's representations
and warranties in this agreement.

    4.2  OPERATION OF THE COMPANY'S BUSINESS.

    (A)  During the Pre-Closing Period: (i) the Company shall ensure that each
of the Acquired Corporations conducts its business and operations (A) in the
ordinary course and in accordance with past practices and (B) in compliance with
all applicable Legal Requirements and the requirements of all Acquired
Corporation Contracts that constitute Material Contracts; (ii) the Company shall
use all reasonable efforts to ensure that each of the Acquired Corporations
preserves intact its current business organization, keeps available the services
of its current officers and other employees and maintains its relations and
goodwill with all suppliers, customers, landlords, creditors, licensors,
licensees, employees and other Persons having business relationships with the
respective Acquired Corporations; (iii) the Company shall keep in full force all
insurance policies referred to in Section 2.19; (iv) the Company shall provide
all notices, assurances and support required by any Acquired Corporation
Contract relating to any Acquired Corporation Proprietary Asset in order to
ensure that no condition under such Acquired Corporation Contract occurs which
could result in, or could increase the likelihood of, (A) any transfer or
disclosure by any Acquired Corporation of any Acquired Corporation Source Code,
or (B) a release from any escrow of any Acquired Corporation Source Code which
has been deposited or is required to be deposited in escrow under the terms of
such Acquired Corporation Contract; and (v) the Company shall (to the extent
requested by Parent) cause its officers and the officers of its Subsidiaries to
report regularly to Parent concerning the status of the Company's business.

                                      A-21
<PAGE>
    (B)  During the Pre-Closing Period, the Company shall not (without the prior
written consent of Parent), and shall not permit any of the other Acquired
Corporations to:

           (I) declare, accrue, set aside or pay any dividend or make any other
       distribution in respect of any shares of capital stock, or repurchase,
       redeem or otherwise reacquire any shares of capital stock or other
       securities;

           (II) sell, issue, grant or authorize the issuance or grant of
       (A) any capital stock or other security, (B) any option, call, warrant or
       right to acquire any capital stock or other security, or (C) any
       instrument convertible into or exchangeable for any capital stock or
       other security (except that (1) the Company may issue shares of Company
       Common Stock upon the valid exercise of Company Options outstanding as of
       the date of this Agreement or pursuant to existing contractual
       obligations listed on Part 4.2(b)(ii) of the Company Disclosure Schedule,
       and (2) the Company may, in the ordinary course of business and
       consistent with past practices and with the approval of Parent, grant
       options under its stock option plans to employees of the Company);

          (III) amend or waive any of its rights under, or accelerate the
       vesting under, any provision of any of the Company's stock option plans,
       any provision of any agreement evidencing any outstanding stock option or
       any restricted stock purchase agreement, or otherwise modify any of the
       terms of any outstanding option, warrant or other security or any related
       Contract;

          (IV) amend or permit the adoption of any amendment to its certificate
       of incorporation or bylaws or other charter or organizational documents,
       or effect or become a party to any merger, consolidation, amalgamation,
       share exchange, business combination, recapitalization, reclassification
       of shares, stock split, division or subdivision of shares, reverse stock
       split, consolidation of shares or similar transaction;

           (V) form any Subsidiary or acquire any equity interest or other
       interest in any other Entity;

          (VI) make any capital expenditure (except that the Acquired
       Corporations may make capital expenditures that, when added to all other
       capital expenditures made on behalf of the Acquired Corporations during
       the Pre-Closing Period, do not exceed $125,000 in the aggregate);

          (VII) enter into or become bound by, or permit any of the assets owned
       or used by it to become bound by, any Material Contract, or amend or
       terminate, or waive or exercise any material right or remedy under, any
       Material Contract, other than in the ordinary course of business
       consistent with past practices;

         (VIII) acquire, lease or license any right or other asset from any
       other Person or sell or otherwise dispose of, or lease or license, any
       right or other asset to any other Person (except in each case for assets
       acquired, leased, licensed or disposed of by the Company in the ordinary
       course of business and consistent with past practices), or waive or
       relinquish any material right;

          (IX) lend money to any Person, or incur or guarantee any indebtedness
       (except that the Company may make routine borrowings in the ordinary
       course of business and consistent with past practices);

           (X) establish, adopt or amend any employee benefit plan, pay any
       bonus or make any profit-sharing or similar payment to, or increase the
       amount of the wages, salary, commissions, fringe benefits or other
       compensation or remuneration payable to, any of its directors, officers
       or employees (except that the Company may make routine, reasonable salary
       increases in connection with the Company's customary employee review
       process and may pay customary bonuses consistent with past practices
       payable in accordance with existing bonus plans or contractual
       obligations referred to in Part 2.17(a) of the Company Disclosure
       Schedule);

                                      A-22
<PAGE>
          (XI) hire any employee at the level of vice-president or above, or
       with an annual base salary in excess of $75,000;

          (XII) change any of its pricing policies, product return policies,
       product maintenance polices, service policies, product modification or
       upgrade policies, personnel policies or other business policies, or any
       of its methods of accounting or accounting practices in any material
       respect;

         (XIII) make any Tax election;

          (XIV) commence or settle any Legal Proceeding;

          (XV) enter into any material transaction or take any other material
       action outside the ordinary course of business or inconsistent with past
       practices; or

          (XVI) agree or commit to take any of the actions described in
       clauses"(i)" through "(xv)" of this Section 4.2(b).

    (C)  During the Pre-Closing Period, the Company shall promptly notify Parent
in writing of: (i) the discovery by the Company of any event, condition, fact or
circumstance that occurred or existed on or prior to the date of this Agreement
and that caused or constitutes a material inaccuracy in any representation or
warranty made by the Company in this Agreement; (ii) any event, condition, fact
or circumstance that occurs, arises or exists after the date of this Agreement
and that would cause or constitute a material inaccuracy in any representation
or warranty made by the Company in this Agreement if (A) such representation or
warranty had been made as of the time of the occurrence, existence or discovery
of such event, condition, fact or circumstance, or (B) such event, condition,
fact or circumstance had occurred, arisen or existed on or prior to the date of
this Agreement; (iii) any material breach of any covenant or obligation of the
Company; and (iv) any event, condition, fact or circumstance that would make the
timely satisfaction of any of the conditions set forth in Section 6 or
Section 7 impossible or unlikely or that has had or could reasonably be expected
to have a Company Material Adverse Effect. Without limiting the generality of
the foregoing, the Company shall promptly advise Parent in writing of any Legal
Proceeding or material claim threatened, commenced or asserted against or with
respect to any of the Acquired Corporations. No notification given to Parent
pursuant to this Section 4.2(c) shall limit or otherwise affect any of the
representations, warranties, covenants or obligations of the Company contained
in this Agreement.

    4.3  NO SOLICITATION; CONFIDENTIALITY.

    (A)  The Company shall not directly or indirectly, and shall not authorize
or permit any of the other Acquired Corporations or any Representative of any of
the Acquired Corporations directly or indirectly to, (i) solicit, initiate,
encourage or induce the making or submission of any Acquisition Proposal,
(ii) furnish any information regarding any of the Acquired Corporations to any
Person in connection with or in response to an Acquisition Proposal,
(iii) engage in discussions or negotiations with any Person with respect to any
Acquisition Proposal, (iv) approve, endorse or recommend any Acquisition
Proposal or (v) enter into any letter of intent or similar document or any
Contract contemplating or otherwise relating to any Acquisition Transaction;
PROVIDED, HOWEVER, that prior to the adoption and approval of this Agreement by
the Required Company Stockholder Vote, the Company shall not be prohibited by
this Section 4.3(a) from furnishing nonpublic information regarding the Acquired
Corporations to, or entering into discussions with, any Person in response to a
Superior Offer that is submitted by such Person (and not withdrawn) if
(1) neither the Company nor any Representative of any of the Acquired
Corporations shall have violated any of the restrictions set forth in
Section 4.3(a)(i), (2) the board of directors of the Company concludes in good
faith, based upon the advice of its outside legal counsel, that such action is
required in order for the board of directors of the Company to comply with its
fiduciary obligations to the Company's stockholders under applicable law,
(3) prior to furnishing any such nonpublic information to, or entering into
discussions with, such Person, the Company gives Parent written notice of the
Company's intention to furnish nonpublic information to, or enter into
discussions with, such Person, and the

                                      A-23
<PAGE>
Company receives from such Person an executed confidentiality agreement
containing customary limitations on the use and disclosure of all nonpublic
written and oral information furnished to such Person by or on behalf of the
Company, and (4) prior to furnishing any such nonpublic information to such
Person, the Company furnishes such nonpublic information to Parent (to the
extent such nonpublic information has not been previously furnished by the
Company to Parent).

    (B)  The Company shall promptly advise Parent orally and in writing of any
Acquisition Proposal (including the terms thereof) that is made or submitted by
any Person during the Pre-Closing Period. The Company shall keep Parent fully
informed with respect to the status of any such Acquisition Proposal and any
modification or proposed modification thereto.

    (C)  The Company and each of the Acquired Corporations will hold in
confidence all discussions and negotiations with Parent relating to the Merger
except for disclosure of such discussions and negotiations to their respective
employees, legal counsel, accountants and other advisors necessary in connection
with such acquisition and except for such disclosure as may be necessary
pursuant to applicable securities laws or as may be required of, or advisable
for, the Company's officers and directors to make in the exercise of their
fiduciary duties, as advised by the Company's counsel.

    (D)  If the Merger is not consummated for any reason, Parent agrees that it
shall not use in competition with the Company or disclose to any Person
whatsoever any information regarding the business, financial condition, assets
or operations of the Company obtained in connection with this Agreement and the
transactions contemplated hereby and shall return to the Company all such
information and all reports, summaries or extracts made therefrom, whether in
physical or electronic form (collectively "Proprietary Information").
Proprietary Information shall not include information previously in the public
domain through no fault of Parent, information independently developed by
Parent, or information provided to Parent by third parties under no duty to
maintain such information in confidence. Parent shall not be prohibited from
disclosing Proprietary Information pursuant to lawful process duly served, or as
may be required by applicable law or governmental regulation, PROVIDED, HOWEVER,
that Parent shall have given the Company reasonable notice of its intent to make
such disclosure and shall have given the Company full and prompt cooperation in
any application which the Company may have determined to make lawfully to
prevent such disclosure. Notwithstanding any other provision of this Agreement,
this subsection 4.3(d) shall survive termination of this Agreement.

SECTION 5.  ADDITIONAL COVENANTS OF THE PARTIES

    5.1  REGISTRATION STATEMENT; PROSPECTUS/PROXY STATEMENT.

    (A)  Following the date of this Agreement, Parent and the Company shall use
its best efforts to prepare and cause to be filed with the SEC the
Prospectus/Proxy Statement and Parent shall use its best efforts to prepare and
cause to be filed with the SEC the Form S-4 Registration Statement, in which the
Prospectus/Proxy Statement will be included as a prospectus. Each of Parent and
the Company shall use its best efforts to cause the Form S-4 Registration
Statement and the Prospectus/Proxy Statement to comply with the rules and
regulations promulgated by the SEC, to respond promptly to any comments of the
SEC or its staff and to have the Form S-4 Registration Statement declared
effective under the Securities Act as promptly as practicable after it is filed
with the SEC. The Company will use its best efforts to cause the
Prospectus/Proxy Statement to be mailed to the Company's stockholders as
promptly as practicable after the Form S-4 Registration Statement is declared
effective under the Securities Act. Each of the Company and Parent shall
promptly furnish to the other all information that may be required or reasonably
requested in connection with any action contemplated by this Section 5.1. If any
event occurs, or if either Parent or the Company becomes aware of any
information, that should be disclosed in an amendment or supplement to the
Form S-4 Registration Statement or the Prospectus/Proxy Statement, then such
party shall promptly inform the other thereof and shall cooperate in filing such
amendment or supplement with

                                      A-24
<PAGE>
the SEC and, if appropriate, in mailing such amendment or supplement to the
stockholders of the Company.

    (A)  Prior to the Effective Time, Parent shall use its best efforts to
obtain all regulatory approvals needed to ensure that the Parent Common Stock to
be issued in the Merger will be registered or qualified under the securities law
of every jurisdiction of the United States in which any registered holder of
Company Common Stock has an address of record on the record date for determining
the stockholders entitled to notice of and to vote at the Company Stockholders'
Meeting; PROVIDED, HOWEVER, that Parent shall not be required (i) to qualify to
do business as a foreign corporation in any jurisdiction in which it is not now
qualified or (ii) to file a general consent to service of process in any
jurisdiction.

    5.2  COMPANY STOCKHOLDERS' MEETING.

    (A)  The Company shall use all reasonable efforts to call, give notice of,
convene and hold a meeting of the holders of Company Common Stock to consider,
act upon and vote upon the adoption and approval of this Agreement and the
approval of the Merger (the "Company Stockholders' Meeting"). The Company
Stockholders' Meeting will be held as promptly as practicable and in any event
within 60 days after the Form S-4 Registration Statement is declared effective
under the Securities Act. The Company shall use all reasonable efforts to ensure
that the Company Stockholders' Meeting is called, noticed, convened, held and
conducted, and that all proxies solicited in connection with the Company
Stockholders' Meeting are solicited, in compliance with all applicable Legal
Requirements.

    (B)  Subject to Section 5.2(c): (i) the board of directors of the Company
shall unanimously recommend that the Company's stockholders vote in favor of and
adopt and approve this Agreement and approve the Merger at the Company
Stockholders' Meeting; (ii) the Prospectus/Proxy Statement shall include a
statement to the effect that the board of directors of the Company has
unanimously recommended that the Company's stockholders vote in favor of and
adopt and approve this Agreement and approve the Merger at the Company
Stockholders' Meeting; and (iii) neither the board of directors of the Company
nor any committee thereof shall withdraw, amend or modify, or propose or resolve
to withdraw, amend or modify, in a manner adverse to Parent, the unanimous
recommendation of the board of directors of the Company that the Company's
stockholders vote in favor of and adopt and approve this Agreement and approve
the Merger. For purposes of this Agreement, said recommendation of the board of
directors of the Company shall be deemed to have been modified in a manner
adverse to Parent if said recommendation shall no longer be unanimous.

    (C)  Nothing in Section 5.2(b) shall prevent the board of directors of the
Company from withdrawing, amending or modifying its unanimous recommendation in
favor of the Merger at any time prior to the adoption and approval of this
Agreement by the Required Company Stockholder Vote if (i) neither the Company
nor any of its Representatives shall have violated any of the restrictions set
forth in Section 4.3(a)(i), and either (ii) the board of directors of the
Company concludes in good faith, based upon the advice of its outside counsel,
that the withdrawal, amendment or modification of such recommendation is
required in order for the board of directors of the Company to comply with its
fiduciary obligations to the Company's stockholders under applicable law, or
(iii) Parent has sustained a Parent Material Adverse Effect or events have
occurred which are reasonably likely to result in a Parent Material Adverse
Effect. Nothing contained in this Section 5.2 shall limit the Company's
obligation to call, give notice of, convene and hold the Company Stockholders'
Meeting (regardless of whether the unanimous recommendation of the board of
directors of the Company shall have been withdrawn, amended or modified).

    5.3  REGULATORY APPROVALS.  Each party shall use all reasonable efforts to
file, as promptly as practicable after the date of this Agreement, all notices,
reports and other documents required to be filed by such party with any
Governmental Body with respect to the Merger and the other transactions
contemplated by this Agreement, and to submit promptly any additional
information requested by any such Governmental Body. Without limiting the
generality of the foregoing, the Company and Parent shall, promptly after the

                                      A-25
<PAGE>
date of this Agreement, prepare and file any notifications that may be required
under the HSR Act in connection with the Merger.

    5.4  STOCK OPTIONS.  Subject to this Section 5.4, at the Effective Time, all
rights with respect to Company Common Stock under each Company Option then
outstanding shall be converted into and become rights with respect to Parent
Common Stock, and Parent shall assume each such Company Option in accordance
with the terms (as in effect as of the date of this Agreement) of the stock
option plan under which it was issued and the stock option agreement by which it
is evidenced. From and after the Effective Time, (i) each Company Option assumed
by Parent may be exercised solely for shares of Parent Common Stock, (ii) the
number of shares of Parent Common Stock subject to each such Company Option
shall be equal to the number of shares of Company Common Stock subject to such
Company Option immediately prior to the Effective Time multiplied by the
Exchange Ratio, rounding down to the nearest whole share, (iii) the per share
exercise price under each such Company Option shall be adjusted by dividing the
per share exercise price under such Company Option by the Exchange Ratio and
rounding up to the nearest cent and (iv) any restriction on the exercise of any
such Company Option shall continue in full force and effect and the term,
exercisability, vesting schedule and other provisions of such Company Option
shall otherwise remain unchanged; PROVIDED, HOWEVER, that each Company Option
assumed by Parent in accordance with this Section 5.4 shall, in accordance with
its terms, be subject to further adjustment as appropriate to reflect any stock
split, division or subdivision of shares, stock dividend, reverse stock split,
consolidation of shares, reclassification, recapitalization or other similar
transaction subsequent to the Effective Time.

    5.5  EMPLOYEE BENEFITS.  Parent shall comply with all Legal Requirements,
with respect to terms of employment, benefits and otherwise, for all employees
of the Company on the Closing Date.

    5.6  ADDITIONAL AGREEMENTS.  Parent and the Company shall use their
respective best efforts to take, or cause to be taken, all actions necessary to
effectuate the Merger and make effective the other transactions contemplated by
this Agreement. Without limiting the generality of the foregoing, each party to
this Agreement (i) shall make all filings (if any) and give all notices (if any)
required to be made and given by such party in connection with the Merger and
the other transactions contemplated by this Agreement, (ii) shall use their
respective best efforts to obtain each Consent (if any) required to be obtained
(pursuant to any applicable Legal Requirement or Contract, or otherwise) by such
party in connection with the Merger or any of the other transactions
contemplated by this Agreement, (iii) shall use their respective best efforts to
lift any restraint, injunction or other legal bar to the Merger, (iv) shall use
their respective best efforts to effectuate the Merger within 7 days after
obtaining the Required Company Stockholder Vote in favor of the Merger, and
(v) shall use their respective best efforts to enter into Employment Agreements
in the forms annexed hereto as Exhibits D-1, D-2 and D-3, executed by Malcolm
Baca, Jeffrey Hanser and Bruce Blackford, respectively. The Company shall
promptly deliver to Parent a copy of each such filing made, each such notice
given and each such Consent obtained by the Company during the Pre-Closing
Period.

    5.7  DISCLOSURE.  Parent and the Company shall consult with each other
before issuing any press release or otherwise making any public statement with
respect to the Merger or any of the other transactions contemplated by this
Agreement. Without limiting the generality of the foregoing, each of the Company
and Parent shall not, and shall not permit any of their respective Subsidiaries
to make any disclosure regarding the Merger or any of the other transactions
contemplated by this Agreement unless (a) the other party shall have approved
such disclosure or (b) it shall have been advised in writing by its outside
legal counsel that such disclosure is required by applicable law.

    5.8  TAX MATTERS.  At or prior to the filing of the Form S-4 Registration
Statement, the Company and Parent shall execute and deliver to Cooley Godward
llp and to Morrison Cohen Singer & Weinstein llp tax representation letters in
customary form. Parent, Merger Sub and the Company shall each confirm to Cooley
Godward llp and to Morrison Cohen Singer & Weinstein llp the accuracy and
completeness as of

                                      A-26
<PAGE>
the Effective Time of the tax representation letters delivered pursuant to the
immediately preceding sentence. Parent and the Company shall use all reasonable
efforts prior to the Effective Time to cause the Merger to qualify as a tax free
reorganization under Section 368(a)(1) of the Code. Following delivery of the
tax representations letters pursuant to the first sentence of this
Section 5.11, each of Parent and the Company shall use its reasonable efforts to
cause Cooley Godward llp and Morrison Cohen Singer & Weinstein llp,
respectively, to deliver to it a tax opinion satisfying the requirements of Item
601 of Regulation S-K promulgated under the Securities Act. In rendering such
opinions, each of such counsel shall be entitled to rely on the tax
representation letters referred to in this Section 5.8.

    5.9  LETTER OF THE COMPANY'S ACCOUNTANTS.  The Company shall use all
reasonable efforts to cause to be delivered to Parent a letter of Ernst & Young
llp, dated no more than two business days before the date on which the Form S-4
Registration Statement becomes effective (and reasonably satisfactory in form
and substance to Parent), that is customary in scope and substance for letters
delivered by independent public accountants in connection with registration
statements similar to the Form S-4 Registration Statement.

    5.10  LISTING.  Parent shall use its best efforts to cause the shares of
Parent Common Stock being issued in the Merger, including shares of Parent
Company Stock issuable upon exercise of Company Options, to be approved for
listing (subject to notice of issuance) on the Nasdaq National Market.

    5.11  RESIGNATION OF OFFICERS AND DIRECTORS.  The Company shall use all
reasonable efforts to obtain and deliver to Parent on or prior to the Closing
the resignation of each officer and director of each of the Acquired
Corporations.

    5.12  NO SECURITIES TRANSACTIONS.  Parent, directly or through any
Subsidiary or Entity it controls, shall not purchase any securities of the
Company prior to Closing.

    5.13  POOLING OF INTERESTS.  Each of the Company and Parent agrees (and the
Company agrees to cause the Acquired Corporations) (a) not to take any action
during the Pre-Closing Period that would adversely affect the ability of Parent
to account for the Merger as a "pooling of interests," and (b) to use all
reasonable efforts to attempt to ensure that none of its "affiliates" (as that
term is used in Rule 145 under the Securities Act) takes any action that could
adversely affect the ability of Parent to account for the Merger as a "pooling
of interests." The Company agrees to provide to Ernst & Young llp and Arthur
Andersen llp such letters as shall be reasonably requested by Ernst & Young llp
or Arthur Andersen llp with respect to the letters referred to in Sections 2.27,
6.5(g) and 6.5(h).

    5.14  AFFILIATE AGREEMENTS.  The Company shall use all reasonable efforts to
cause each Person identified on Exhibit C, each other person who, after the data
hereof becomes an executive officer, director or beneficial holder of more than
10% of the outstanding capital stock of the Company, and each person who is
otherwise identified by the SEC as an "affiliate" within the meaning of
Rule 144(a)(1) promulgated under the Securities Act to execute and deliver to
Parent, prior to the date of the mailing of the Prospectus/Proxy Statement to
the Company's stockholders, an Affiliate Agreement in the form of Exhibit B.

    5.15  RELEASE OF FINANCIAL STATEMENTS.  Parent will use all reasonable
efforts to prepare, file and release, within 45 days of the end of the fiscal
period, its financial statements and results of operations for the three months
period ended after the Effective Date which includes at least one month's
combined consolidated operations of the Company and Parent.

    5.16  GUARANTY OF FLEET BANK LOAN.  On the Closing Date, by payment and
termination or by refinancing of that certain Credit Agreement between the
Company and Fleet National Bank, N.A. ("Fleet") date August 28, 1997 thereof, or
otherwise, Parent will cause Zing Technologies, Inc., as guarantor thereunder,
or any successor guarantor thereto, to be released by Fleet or any successor
thereto as lender thereunder from all guaranty and indemnity obligations arising
thereunder.

                                      A-27
<PAGE>
SECTION 6. CONDITIONS PRECEDENT TO OBLIGATIONS OF PARENT AND MERGER SUB

    The obligations of Parent and Merger Sub to effect the Merger and otherwise
consummate the transactions contemplated by this Agreement are subject to the
satisfaction, at or prior to the Closing, of each of the following conditions:

    6.1 ACCURACY OF REPRESENTATIONS.  Each of the representations and warranties
made by the Company in this Agreement and in each of the other agreements and
instruments delivered to Parent in connection with the transactions contemplated
by this Agreement is accurate in all material respects on the Closing Date
except for such inaccuracies as would not result in a material adverse change
pursuant to Section 6.7 below; and there has been no material failure by the
Company to perform any covenant or obligation required to be performed at or
prior to Closing.

    6.2 EFFECTIVENESS OF REGISTRATION STATEMENT.  The Form S-4 Registration
Statement shall have become effective in accordance with the provisions of the
Securities Act, and no stop order shall have been issued by the SEC with respect
to the Form S-4 Registration Statement, provided that any such failure of
effectiveness shall not be the result of any breach by Parent of any of its
covenants under this Agreement.

    6.3 STOCKHOLDER APPROVAL.  This Agreement shall have been duly adopted and
approved, and the Merger shall have been duly approved, by the Required Company
Stockholder Vote. At the Closing Date, persons who are Dissenters will be the
holders of no more than 10% of the issued and outstanding Company Common Stock.
"Dissenters" shall mean Persons who are record owners of Company Common Stock
entitled to vote at the meeting of stockholders called to approve this Agreement
and the Merger, who affirmatively vote against this Agreement and the Merger and
who have taken all steps required under Section 262 of the DGCL to be taken
prior to the Closing Date for the perfection of appraisal rights thereunder and
who have not thereafter, but prior to the Closing Date, withdrawn a demand for
appraisal rights or otherwise waived in writing their rights under said
Section 262.

    6.4 CONSENTS.  All material Consents required to be obtained by the Company
in connection with the Merger and the other transactions contemplated by this
Agreement shall have been obtained and shall be in full force and effect.

    6.5 AGREEMENTS AND DOCUMENTS.  Parent shall have received the following
agreements and documents, each of which shall be in full force and effect:

        (A) Employment Agreements in the forms attached hereto as Exhibits D-1,
    D-2 and D-3, executed by Malcolm Baca, Jeffrey Hanser, and Bruce Blackford,
    respectively;

        (B) Affiliate Agreements in the form attached hereto as Exhibit B,
    executed by the Persons identified on Exhibit C, each other person who,
    after the date hereof becomes an executive officer, director or beneficial
    holder of more than 10% of the outstanding capital stock of the Company, and
    each person who is otherwise identified by the SEC as an "affiliate" within
    the meaning of Rule 144(a)(1) promulgated under the Securities Act;

        (C) a letter from Ernst & Young llp, dated as of the Closing Date and
    addressed to Parent, reasonably satisfactory in form and substance to
    Parent, updating the letter referred to in Section 5.9;

        (D) a legal opinion of Cooley Godward llp dated as of the Closing Date
    and addressed to Parent, to the effect that the Merger will constitute a
    reorganization within the meaning of Section 368 of the Code (it being
    understood that, in rendering such opinion, Cooley Godward llp may rely upon
    the tax representation letters referred to in Section 5.8);

        (E) a certificate (the "Closing Certificate") executed on behalf of the
    Company by its Chief Executive Officer confirming that the conditions set
    forth in Sections 6.1, 6.3, 6.4, 6.6, and 6.7 have been duly satisfied; and

                                      A-28
<PAGE>
        (F) the written resignations of all officers and directors of the
    Company, effective as of the Effective Time.

        (G) a letter from Arthur Andersen llp, dated as of the Closing Date,
    confirming that Parent may account for the Merger as a "pooling of
    interests" in accordance with generally accepted accounting principles,
    Accounting Principles Board Opinion No. 16 and all published rules,
    regulations and policies of the SEC; provided, however, that the failure to
    deliver such letter shall not excuse Parent and Merger Sub from performing
    their obligations under this Agreement if such failure does not result from
    any breach of the representations, warranties or covenants made by the
    Company in this Agreement; and

        (H) a letter from Ernst & Young llp, dated as of the Closing Date,
    confirming that no transaction entered into by the Acquired Corporations,
    and no other fact or circumstance relating to the Acquired Corporations,
    will prevent Parent from accounting for the Merger as a "pooling of
    interests" in accordance with generally accepted principles, Accounting
    Principles Board Opinion No. 16 and all published rules, regulations and
    policies of the SEC; provided, however, that the failure to deliver such
    letter shall not excuse Parent and Merger Sub from performing their
    obligations under this Agreement if such failure does not result from any
    breach of the representations, warranties or covenants made by the Company
    in this Agreement.

    6.6 EMPLOYEES.  None of Bruce Blackford, Jeffrey Hanser and Malcolm Baca
shall have ceased to be employed by the Company, or shall have expressed an
intention to terminate his or her employment with the Company or to decline to
accept employment with Parent.

    6.7 NO MATERIAL ADVERSE CHANGE.  There shall not have occurred (a) a
reduction in the net worth of the Company of more than $500,000 from the net
worth of the Company at December 31, 1999, calculated without taking into
account the operating results of the Company (including but not limited to
normal amortization and depreciation) after such date, (b) a net loss for the
Company's quarter ending March 31, 2000, excluding for this purpose and
clause (a) above costs and expenses incurred by the Company in connection with
the transaction described in and the negotiation of this Agreement or (c) no
more than 4 of the 11 subscribers of the Company's AIM/MAX service, other than
those entities identified on Part 6.7 of the Company Disclosure Schedules, whose
subscriptions expire on or before March 31, 2000, cancel orally or in writing
their subscriptions or convert their subscriptions to the Company's TACTRAC
service, and not more than 3 of the 14 subscribers to the Company's TACTRAC
service, other than those entities identified on Part 6.7 of the Company
Disclosure Schedules, whose subscriptions expire on or before March 31, 2000,
cancel orally or in writing their TACTRAC subscriptions, or, if the Closing
occurs after March 31, 2000, for the period from January 1, 2000 to the day
prior to the Closing, no more than 35% of those AIM/MAX subscribers, other than
those entities identified on Part 6.7 of the Company Disclosure Schedules, whose
subscriptions expire in such period, cancel orally or in writing their
subscriptions or convert to the TACTRAC service, and no more than 25% of those
TACTRAC subscribers, other than those entities identified on Part 6.7 of the
Company Disclosure Schedules, whose subscriptions expire in such period, cancel
orally or in writing their TACTRAC subscriptions. To count as effective renewals
or upgrades, such renewals or upgrades must be on terms and conditions that are
reasonably consistent with currently applicable terms and conditions. The
calculations under (a) and (b) above shall be made in accordance with generally
accepted accounting principles consistently applied (except as otherwise
required by the foregoing).

    6.8 HSR ACT.  If applicable, the waiting period applicable to the
consummation of the Merger under the HSR Act shall have expired or been
terminated.

    6.9 NO RESTRAINTS.  No temporary restraining order, preliminary or permanent
injunction or other order preventing the consummation of the Merger shall have
been issued by any court of competent

                                      A-29
<PAGE>
jurisdiction and remain in effect, and there shall not be any Legal Requirement
enacted or deemed applicable to the Merger that makes consummation of the Merger
illegal.

    6.10 NO GOVERNMENTAL LITIGATION.  There shall not be pending or threatened
any Legal Proceeding in which a Governmental Body is or is threatened to become
a party or is otherwise involved, and neither Parent nor the Company shall have
received any communication from any Governmental Body in which such Governmental
Body indicates the possibility of commencing any Legal Proceeding or taking any
other action: (a) challenging or seeking to restrain or prohibit the
consummation of the Merger or any of the other transactions contemplated by this
Agreement; (b) relating to the Merger and seeking to obtain from Parent or any
of its Subsidiaries, or any of the Acquired Corporations, any damages or other
relief that may be material to Parent; (c) seeking to prohibit or limit in any
material respect Parent's ability to vote, receive dividends with respect to or
otherwise exercise ownership rights with respect to the stock of any of the
Acquired Corporations; or (d) which would materially and adversely affect the
right of Parent or any of the Acquired Corporations to own the assets or operate
the business of the Acquired Corporations.

    6.11 NO OTHER LITIGATION.  There shall not be pending any Legal Proceeding
in which, in the reasonable judgment of Parent, there is a reasonable
possibility of an outcome that could have a Company Material Adverse Effect or a
Parent Material Adverse Effect: (a) challenging or seeking to restrain or
prohibit the consummation of the Merger or any of the other transactions
contemplated by this Agreement; (b) relating to the Merger and seeking to obtain
from Parent or any of its Subsidiaries, or any of the Acquired Corporations, any
damages or other relief that may be material to Parent; (c) seeking to prohibit
or limit in any material respect Parent's ability to vote, receive dividends
with respect to or otherwise exercise ownership rights with respect to the stock
of any of the Acquired Corporations; or (d) which would affect adversely the
right of Parent or any of the Acquired Corporations to own the assets or operate
the business of the Acquired Corporations.

SECTION 7. CONDITIONS PRECEDENT TO OBLIGATION OF THE COMPANY

    The obligation of the Company to effect the Merger and otherwise consummate
the transactions contemplated by this Agreement are subject to the satisfaction,
at or prior to the Closing, of the following conditions:

    7.1 ACCURACY OF REPRESENTATIONS.  The representations and warranties of
Parent and Merger Sub contained in this Agreement shall have been accurate in
all material respects as of the date of this Agreement and shall be accurate in
all material respects as of the Closing Date as if made on and as of the Closing
Date (it being understood that, for purposes of determining the accuracy of such
representations and warranties, all materiality qualifications contained in such
representations and warranties shall be disregarded).

    7.2 PERFORMANCE OF COVENANTS.  All of the covenants and obligations that
Parent and Merger Sub are required to comply with or to perform at or prior to
the Closing shall have been complied with and performed in all material
respects.

    7.3 EFFECTIVENESS OF REGISTRATION STATEMENT.  The Form S-4 Registration
Statement shall have become effective in accordance with the provisions of the
Securities Act, and no stop order shall have been issued by the SEC with respect
to the Form S-4 Registration Statement.

    7.4 STOCKHOLDER APPROVAL.  This Agreement shall have been duly adopted and
approved, and the Merger shall have been duly approved, by the Required Company
Stockholder Vote.

    7.5 DOCUMENTS.  The Company shall have received the following documents:

    (A) a legal opinion of Morrison Cohen Singer & Weinstein, LLP, dated as of
the Closing Date, to the effect that the Merger will constitute a reorganization
within the meaning of Section 368 of the Code (it

                                      A-30
<PAGE>
being understood that, in rendering such opinion, Morrison Cohen Singer &
Weinstein, LLP may rely upon the tax representation letters referred to in
Section 5.8); and

    (B) a certificate executed on behalf of Parent by an executive officer of
Parent, confirming that conditions set forth in Sections 7.1 and 7.2 have been
duly satisfied.

    7.6 HSR ACT.  If applicable, the waiting period applicable to the
consummation of the Merger under the HSR Act shall have expired or been
terminated.

    7.7 LISTING.  The shares of Parent Common Stock to be issued in the Merger
shall have been approved for listing (subject to notice of issuance) on the
Nasdaq National Market.

    7.8 NO RESTRAINTS.  No temporary restraining order, preliminary or permanent
injunction or other order preventing the consummation of the Merger by the
Company shall have been issued by any court of competent jurisdiction and remain
in effect, and there shall not be any Legal Requirement enacted or deemed
applicable to the Merger that makes consummation of the Merger by the Company
illegal.

    7.9 NO PARENT MATERIAL ADVERSE EFFECT.  Since the date of the Agreement,
Parent shall not have sustained a Parent Material Adverse Effect and no events
have occurred as a result of which it is reasonably foreseeable that there is
likely to occur a Parent Material Adverse Effect.

SECTION 8. TERMINATION

    8.1 TERMINATION.  This Agreement may be terminated prior to the Effective
Time (whether before or after approval of the Merger by the Required Company
Stockholder Vote):

    (A) by mutual written consent of Parent and the Company;

    (B) by either Parent or the Company if the Merger shall not have been
consummated by June 30, 2000 (unless the failure to consummate the Merger is
attributable to a failure on the part of the party seeking to terminate this
Agreement to perform any material obligation required to be performed by such
party at or prior to the Effective Time);

    (C) by either Parent or the Company if a court of competent jurisdiction or
other Governmental Body shall have issued a final and nonappealable order,
decree or ruling, or shall have taken any other action, having the effect of
permanently restraining, enjoining or otherwise prohibiting the Merger;

    (D) by Parent if (i) the Company Stockholders' Meeting shall have been held
and (ii) (A) this Agreement and the Merger shall not have been approved at such
meeting by the Required Company Stockholder Vote or (B) if applicable, holders
of more than 10% of the Company Common Stock shall have timely elected and
perfected Dissenter's Rights;

    (E) by the Company if the Company Stockholders' Meeting shall have been held
and this Agreement and the Merger shall not have been approved at such meeting
by the Required Company Stockholder Vote, provided that the failure to obtain
the Required Company Stockholder Vote did not result from a breach of any of the
Voting Agreements referenced in Recital D.

    (F) by Parent if (i) the conditions of Parent's and Merger Sub's obligation
to close set forth in Section 6.1 shall not have been satisfied, (ii) any of the
Company's covenants contained in this Agreement shall have been breached in any
material respect; PROVIDED, HOWEVER, that Parent may not terminate this
Agreement under this Section 8.1(f) on account of an inaccuracy in the Company's
representations and warranties that is curable by the Company or on account of a
breach of a covenant of the Company that is curable by the Company unless the
Company fails to cure such inaccuracy or breach within 30 days after receiving
written notice from the Parent of such inaccuracy or breach; or

    (G) by the Company if: (i) any of the conditions to the Company's obligation
to close set forth in Sections 7.1, 7.7 or 7.9 shall not have been satisfied;
(ii) any of Parent's covenants contained in this

                                      A-31
<PAGE>
Agreement shall have been breached in any material respect; PROVIDED, HOWEVER,
that the Company may not terminate this Agreement under this Section 8.1(g) on
account of an inaccuracy in Parent's representations and warranties that is
curable by Parent or on account of a breach of a covenant by Parent that is
curable by Parent unless Parent fails to cure such inaccuracy or breach within
30 days after receiving written notice from the Company of such inaccuracy or
breach; or (iii) the Form S-4 Registration Statement has not become effective in
accordance with the provisions of the Securities Act within 90 days after such
registration statement was filed with the SEC, provided that the failure of such
effectiveness did not result from a breach by the Company of any of its
covenants under this Agreement.

    8.2 EFFECT OF TERMINATION.

    (A) In the event of the termination of this Agreement as provided in
Section 8.1, this Agreement shall be of no further force or effect; PROVIDED,
HOWEVER, that (i) this Section 8.2, Section 8.3 and Section 9 shall survive the
termination of this Agreement and shall remain in full force and effect, and
(ii) the termination of this Agreement shall not relieve any party from any
liability for any inaccuracy in or breach of any representation, warranty or
covenant contained in this Agreement which results in such termination.

    (B) If this Agreement is terminated by the Company pursuant to
Section 8.1(g), other than by reason of the condition set forth in Section 7.9,
Parent shall pay to the Company, as liquidated damages arising from, INTER ALIA,
the disclosure to Parent of highly confidential information of the Company, and
not as a penalty, the amount of five hundred thousand dollars ($500,000) which
amount shall be paid, in cash or immediately available U.S. funds, within
48 hours of the termination of this Agreement.

    8.3 EXPENSES.

    (A) Except as set forth in this Section 8.3, all fees and expenses incurred
in connection with this Agreement and the transactions contemplated by this
Agreement shall be paid by the party incurring such expenses, whether or not the
Merger is consummated; PROVIDED, HOWEVER, that (i) Parent and the Company shall
share equally all fees and expenses, other than attorneys' fees, incurred in
connection with (A) the filing, printing and mailing of the Form S-4
Registration Statement and the Prospectus/Proxy Statement and any amendments or
supplements thereto and (B) if applicable, the filing of the premerger
notification and report forms relating to the Merger under the HSR Act; and
(ii) if this Agreement is terminated by Parent or the Company pursuant to
Section 8.1(d)(ii)(A) or, if any party to a voting agreement has breached such
agreement, 8.1(d)(ii)(B), then the Company shall pay to Parent (in addition to
any other amount that may be payable pursuant to Section 8.3(b) or otherwise),
in cash at the time specified in the next sentence, a nonrefundable payment in
an amount equal to the aggregate amount of all fees and expenses (including all
attorneys' fees, accountants' fees, financial advisory fees and filing fees)
incurred by or on behalf of Parent in connection with the preparation and
negotiation of this Agreement and otherwise in connection with the Merger. In
the case of termination of this Agreement by the Company pursuant to
Section 8.1(d), the nonrefundable payment referred to in the preceding sentence
shall be made by the Company prior to such termination; and in the case of
termination of this Agreement by Parent pursuant to Section 8.1(d), the
nonrefundable payment referred to in the preceding sentence shall be made by the
Company within two business days after such termination.

    (B) In addition to the foregoing, if this Agreement is terminated by Parent
or the Company pursuant to Section 8.1(d) or Section 8.1(e) and at the time of
such termination an Acquisition Proposal shall have been disclosed, announced,
commenced, submitted or made, the Company shall pay to Parent, in cash at the
time specified in the next sentence, a nonrefundable fee in the amount of
$255,000. In the case of termination of this Agreement by the Company pursuant
to Section 8.1(d), the fee referred to in the preceding sentence shall be paid
by the Company prior to such termination, and in the case of termination of this
Agreement by Parent pursuant to Section 8.1(d), the fee referred to in the
preceding sentence shall be paid by the Company within two business days after
such termination.

                                      A-32
<PAGE>
SECTION 9. INDEMNIFICATION, ETC.

    9.1 SURVIVAL OF REPRESENTATIONS, ETC.

    (A) The representations and warranties made by the Company (including the
representations and warranties set forth in Section 2 and the representations
and warranties set forth in the Closing Certificate) shall survive the Closing
and shall expire on the first anniversary of the Closing Date. Such expiration
shall not affect any rights of Parent, Merger Sub and the Company with respect
to claims made or as to which a Claim Notice (as defined in Section 9.5(g)
below) has been given prior to such expiration, and any such claim for which a
Claim Notice (as defined in Section 9.5(g) below) has been given shall survive
beyond such expiration until such time as such claim is fully and finally
resolved. All representations and warranties made by Parent and Merger Sub shall
terminate and expire as of the Closing Date, and any liability of Parent or
Merger Sub with respect to such representations and warranties shall thereupon
cease.

    (B) The representations, warranties, covenants and obligations of the
Company, and the rights and remedies that may be exercised by the Indemnitees,
shall not be limited or otherwise affected by or as a result of any information
furnished to, or any investigation made by or knowledge of, any of the
Indemnitees or any of their Representatives, other than information contained in
the Company Disclosure Schedules.

    (C) For purposes of this Agreement, each statement or other item of
information set forth in the Disclosure Schedule or in any update to the
Disclosure Schedule shall be deemed to be a representation and warranty made by
the Company in this Agreement as to the accuracy thereof (but only to the extent
of the description thereof contained therein).

    9.2 INDEMNIFICATION.

    (A) From and after the Closing Date (but subject to Section 9.1(a)), each of
the Indemnitees shall be held harmless and indemnified from and against, and
shall be compensated and reimbursed for, any Damages which are directly or
indirectly suffered or incurred by any of the Indemnitees or to which any of the
Indemnitees may otherwise become subject (regardless of whether or not such
Damages relate to any third-party claim) and which arise from or as a result of:
(i) any inaccuracy in or breach of any representation or warranty set forth in
Section 2 or in the Closing Certificate (after giving effect to any update to
the Disclosure Schedule delivered by the Company to Parent prior to the
Closing); or (ii) any breach of any covenant or obligation of the Company
(including the covenants set forth in Sections 4 and 5).

    (B) The Company acknowledges and agrees that, if the Surviving Corporation
suffers, incurs or otherwise becomes subject to any Damages as a result of or in
connection with any inaccuracy in or breach of any representation, warranty,
covenant or obligation, then (without limiting any of the rights of the
Surviving Corporation as an Indemnitee) Parent shall also be deemed, by virtue
of its ownership of the stock of the Surviving Corporation, to have incurred
Damages as a result of and in connection with such inaccuracy or breach;
provided, however, that the Indemnitees may not collectively recover indemnity
in an amount which exceeds the actual amount of Damages suffered.

    9.3 THRESHOLD; CEILING.

    (A) There shall be no indemnification payment pursuant to Section 9.2(a)
until such time as the total amount of all Damages that have been suffered or
incurred by any one or more of the Indemnitees, or to which any one or more of
the Indemnitees has or have otherwise become subject, exceeds $100,000 in the
aggregate (the "Threshold Amount"). If the total amount of such Damages exceeds
the Threshold Amount then the Indemnitees shall be entitled to be indemnified
against and compensated and reimbursed for the amount of such damages that
exceeds $100,000 in the aggregate.

                                      A-33
<PAGE>
    (B) Notwithstanding anything else herein, indemnification under this
Section 9 shall be satisfied solely from the Holdback Fund (as defined in
Section 9.5). Except for any Damages from any fraud, indemnification under this
Section 9 shall be the sole and exclusive remedy of the Indemnitees after
closing for any and all breaches of representations and warranties contained in
Section 2 hereof or the covenants or other obligations contained in this
Agreement.

    (C) Parent shall, and shall cause Surviving Corporation to, act in
accordance with its good faith business judgment to pursue any claims or rights
they respectively may have with respect to insurance proceeds or claims against
third parties which would reduce the amount of Damages and shall seek to obtain
such Tax benefit as may be available where seeking such Tax benefit, in the
exercise of its good faith business judgment, will not have a net adverse effect
on Parent or Surviving Corporation.

    9.4 NO CONTRIBUTION.  Except as provided above, no Person, including any
Former Company Stockholder, shall have any right of contribution, right of
indemnity or other right or remedy against the Surviving Corporation in
connection with any indemnification obligation or any other liability to which
he may become subject under or in connection with this Agreement or the Company
Closing Certificate.

    9.5 HOLDBACK FUND; SATISFACTION OF INDEMNIFICATION CLAIM.

    (A) On the Closing Date, Parent shall issue a certificate for five percent
(5%) of the shares of Parent Common Stock issued pursuant to Section 1.5 hereof
(the "Holdback Shares") in the name of the Exchange Agent or another institution
designated by Parent as agent (the "Holdback Agent"), evidencing the shares of
Parent Common Stock to be held in escrow. The fund for the Holdback Shares is
referred to as the Holdback Fund. The Holdback Agent shall serve as the Holdback
Agent pursuant to an escrow agreement that will contain terms substantially
consistent with the terms of this Section 9.5 and any other standard terms
required by the Holdback Agent (and that are reasonably satisfactory to Parent
and the Designated Shareholders' Agent). The Holdback Fund shall be held as a
trust fund and shall not be subject to any lien, attachment, trustee process or
any other judicial process of any creditor of any party hereto. The Holdback
Agent agrees to accept delivery of the Holdback Fund and to hold the Holdback
Shares in the Holdback Fund subject to the terms and conditions of this
Agreement. Any cash held in the Holdback Fund shall be deposited in a federally
insured, interest bearing, money market account.

    (B) The Holdback Fund shall be used to compensate and reimburse each of the
Indemnitees for indemnifiable claims as set forth herein. The Holdback Fund
shall be security for such indemnity obligation, subject to the limitations, and
in the manner provided, in this Agreement.

    (C) If and to the extent that the Holdback Fund consists of Holdback Shares,
the Former Company Stockholders shall be entitled to vote the Holdback Shares.
Parent shall give each Former Company Stockholder at least as much notice as it
gives its stockholders generally, it being acknowledged that such Former Company
Stockholders are deemed Parent stockholders as and from the Effective Date.
Parent shall, in accordance with written instructions timely received from the
Former Company Stockholders, vote the Holdback Shares in accordance with such
written instructions.

    (D) Any distributions of cash, securities or other property in respect of or
in exchange for any Holdback Shares, other than distributions of capital stock
of Parent (by way of stock dividend, stock split or otherwise) not constituting
a dividend for purposes of Section 301 of the Code, shall be payable and
distributed directly to the Holdback Fund and shall become a part of the
Holdback Fund and become included in the definition of "Holdback Shares." At the
time any Holdback Shares in the Holdback Fund are required to be released from
the Holdback Fund to any Person pursuant to this Agreement, any distributions of
capital stock of Parent previously made in respect of such released Holdback
Shares and held in the Holdback Fund shall be released from the Holdback Fund to
such Person. Each certificate representing shares deposited in the Holdback Fund
shall be accompanied by executed stock powers, executed in blank as to the
assignee and certificate number, in form sufficient for the transfer thereof. It
is understood that shares of Parent Common Stock which may be distributed on or
with respect to the shares

                                      A-34
<PAGE>
in the Holdback Fund during the term of this Agreement by reason of stock
dividends, stock splits or otherwise shall be deposited directly by Parent with
the Holdback Agent (with the applicable executed stock powers) pursuant to the
terms and conditions hereof (such additional shares shall be deemed to become a
part of the Holdback Fund when deposited with the Holdback Agent).

    (E) The interests of the Former Company Stockholders in the Holdback Fund
and in the Holdback Shares and/or cash then held in the Holdback Fund shall not
be assignable or transferable, other than by operation of law.

    (F) No fractional shares of any Parent Common Stock shall be retained in or
released from the Holdback Fund pursuant to this Agreement. In connection with
any release of Parent Common Stock from the Holdback Fund, the Holdback Agent
shall be permitted to "round down" or to follow such other rounding procedures
as the Holdback Agent reasonably determines to be appropriate in order to avoid
(i) retaining any fractional shares in the Holdback Fund or (ii) releasing any
fractional shares from the Holdback Fund.

    (G) If, based on reasonably complete supporting documentary evidence, Parent
reasonably determines that it is entitled, under the terms of this Agreement, to
make a claim against the Holdback Fund for indemnification, then Parent may
deliver to the Designated Shareholders' Agent a written notice of such
inaccuracy or breach (a "Claim Notice") setting forth (i) with reasonable detail
the circumstances supporting Parent's determination that such inaccuracy or
breach exists or has occurred, (ii) a summary of the evidence supporting
Parent's determination, together with a copy of such evidence to the extent
practicable, and (iii) to the extent possible, a non-binding, preliminary
estimate of the maximum aggregate dollar amount of all indemnifiable claims that
have arisen and may arise as a result of such inaccuracy or breach (such
aggregate amount being referred to as the "Claim Amount"). Such Claim Notice
must be delivered on or before the first anniversary of the Closing Date. Parent
will make all reasonable efforts timely to inform the Designated Shareholders'
Agent of all events, circumstances and communications which, in Parent's good
faith judgment, are reasonably likely to ripen into a Claim Event if not
otherwise resolved and shall cooperate with the Designated Shareholders' Agent
in any reasonable suggestions he may offer to prevent such events, circumstances
or communication from ripening into a Claim Event.

    (H) Within thirty (30) days after the delivery of a Claim Notice to the
Designated Shareholders' Agent, the Designated Shareholders' Agent shall deliver
to the Holdback Agent, a written notice (the "Response Notice") containing:
(i) instructions to the effect that Holdback Shares having a Fair Market Value
(as defined below) and/or cash then held in the Holdback Fund equal to the
entire Claim Amount set forth in such Claim Notice is to be released from the
Holdback Fund to Parent; or (ii) instructions to the effect that Holdback Shares
having a Fair Market Value and/or cash then held in the Holdback Fund equal to a
specified portion (but not the entire amount) of the Claim Amount set forth in
such Claim Notice are to be released from the Holdback Fund to Parent, together
with a statement that the remaining portion of such Claim Amount is being
disputed; or (iii) a statement that the entire Claim Amount set forth in such
Claim Notice is being disputed. If no Response Notice is delivered by the
Designated Shareholders' Agent within thirty (30) days after the delivery of a
Claim Notice to the Designated Shareholders' Agent, then the Designated
Shareholders' Agent shall be deemed to have given instructions that Holdback
Shares and/or cash then held in the Holdback Fund having a value equal to the
entire Claim Amount set forth in such Claim Notice are to be released to Parent
from the Holdback Fund.

    (I) If the Designated Shareholders' Agent gives (or is deemed to have given)
instructions that Holdback Shares and/or cash then held in the Holdback Fund
equal to the entire Claim Amount set forth in a Claim Notice are to be released
from the Holdback Fund to Parent, then the Holdback Agent shall promptly
following the required delivery date for the Response Notice transfer, deliver
and assign to Parent such number of Holdback Shares and/or cash then held in the
Holdback Fund equal to the Claim Amount (or such lesser amount as is then held
in Holdback Fund).

                                      A-35
<PAGE>
    (J) If a Response Notice delivered by the Designated Shareholders' Agent in
response to a Claim Notice contains instructions to the effect that Holdback
Shares and/or cash then held in the Holdback Fund equal to a specified portion
(but not the entire amount) of the Claim Amount set forth in such Claim Notice
are to be released from the Holdback Fund to Parent, then (i) the Holdback Agent
shall promptly following the required delivery date for the Response Notice
transfer, deliver and assign to Parent such number of Holdback Shares and/or
cash then held in the Holdback Fund equal to such specified portion of such
Claim Amount, and (ii) the procedures set forth in subsection 9.5(k) of this
Agreement shall be followed with respect to the remaining portion of such Claim
Amount.

    (K) If a Response Notice delivered by the Designated Shareholders' Agent in
response to a Claim Notice contains a statement that all or a portion of the
Claim Amount set forth in such Claim Notice is being disputed (such Claim Amount
or the disputed portion thereof being referred to as the "Disputed Amount"),
then, notwithstanding anything contained in Section 9 of this Agreement, the
Holdback Agent shall continue to hold in the Holdback Fund (in addition to any
other Holdback Shares and/or cash then held in the Holdback Fund permitted to be
retained in Holdback Fund, whether in connection with any other dispute or
otherwise) Holdback Shares and/or cash then held in the Holdback Fund having a
Fair Market Value equal to the Disputed Amount. Such amount shall continue to be
held in the Holdback Fund until (i) delivery of a notice executed by Parent and
the Designated Shareholders' Agent setting forth instructions to the Holdback
Agent regarding the release of such Holdback Shares and/or cash then held in the
Holdback Fund or (ii) delivery of a copy of a final and non-appealable judgment
of the Arbitrator setting forth instructions to the Holdback Agent as to the
release of such shares or cash. Each party agrees that upon resolution of the
disposition of any Disputed Amount, such party will promptly execute such notice
and instruction to the Holdback Agent to effect such disposition. The Holdback
Agent shall thereupon release shares of Parent Common Stock and/or cash then
held in the Holdback Fund from the Holdback Fund in accordance with the
instructions set forth in such notice or Arbitrator's award. Moreover, in the
event the Arbitrator determines that Parent is not entitled to indemnification
in respect of a Claim Notice and that Parent did not have a basis for presenting
such Claim Notice that meets the standards set forth in Section 9.5(g), then
Parent shall pay to the Holdback Agent interest at the rate of 10% per annum on
the amount retained in the Holdback Fund in respect of the applicable Claim from
the first anniversary date of the Closing Date to the date on which the Holdback
Agent receives effective and binding instructions to release such retained
amount.

    (L) In the event that any Response Notice indicates that there is a Disputed
Amount, the Designated Shareholders' Agent and Parent shall for a period of
60 days attempt in good faith to resolve the rights of the respective parties
with respect to such claims. If the Designated Shareholders' Agent and Parent
should so agree, a notice setting forth such agreement shall be signed by both
parties and delivered to the Holdback Agent who shall thereupon transfer,
deliver and assign to Parent such amount as is equal to the agreed upon amount
(or such lesser amount as is then held in Holdback Fund).

    (M) After the first anniversary of the Closing Date, the Holdback Agent
shall release to the Former Company Stockholders from the Holdback Fund, all
shares and cash then held in the Holdback Fund, except for any amounts that are
to be retained in the Holdback Fund in accordance with subsection 9.5(k) above.

    (N) If the Holdback Agent becomes obligated to transfer to Parent any
Holdback Shares and/or cash then held in the Holdback Fund in accordance with
the terms of this Agreement, the Holdback Agent shall deliver certificates
representing such shares together with a completed stock power, or cash to
Parent. If the Holdback Agent becomes obligated to transfer to Former Company
Stockholders any Holdback Shares and/or cash held in the Holdback Fund in
accordance with the terms of this Agreement, the Holdback Agent shall deliver to
each Former Company Stockholder one or more certificates and/or cash, then held
the Holdback Fund, and to deliver such certificates and/or cash or to cause its
transfer agent to deliver such certificate and/or cash to each respective Former
Company Stockholder at the address set forth on the transfer agent's books and
records or, at the request of the Former Company Stockholder, and upon

                                      A-36
<PAGE>
submission of evidence satisfactory to Parent of such designation, to deliver
such certificate and/or cash to the Former Company Stockholder's designee.

    (O) For purposes of this Agreement, the "Fair Market Value" of each of the
Holdback Shares in the Holdback Fund shall be deemed to be the Parent Average
Stock Price. Whenever Holdback Shares and/or cash held in the Holdback Fund are
to be transferred, delivered and assigned to Parent, such amounts shall be
transferred, delivered and assigned pro rata from each Former Company
Stockholder.

    9.6 DESIGNATED SHAREHOLDERS' AGENT.  Robert E. Schrader (the "Designated
Shareholders' Agent"), hereby accepts his appointment as the Designated
Shareholders' Agent, effective as of the Effective Date. Parent shall be
entitled to deal exclusively with the Designated Shareholders' Agent on all
matters relating to Section 9, and shall be entitled to rely conclusively
(without further evidence of any kind whatsoever) on any document executed or
purported to be executed on behalf of any Former Company Stockholder by the
Designated Shareholders' Agent, and on any other action taken or purported to be
taken on behalf of any Former Company Stockholder by the Designated
Shareholders' Agent, as fully binding upon such Former Company Stockholder. If
the Designated Shareholders' Agent shall die, become disabled or otherwise be
unable to fulfill his responsibilities as agent of the Former Company
Stockholders, then Deborah J. Schrader shall become the "Designated
Shareholders' Agent" for purposes of Section 9.

    9.7 DEFENSE OF THIRD PARTY CLAIMS.  In the event of the assertion or
commencement by any Person of any claim or Legal Proceeding (whether against the
Surviving Corporation, against Parent or against any other Person) with respect
to which the Company may become obligated to hold harmless, indemnify,
compensate or reimburse any Indemnitee pursuant to this Section 9, Parent shall
have the right, at its election, to proceed with the defense of such claim or
Legal Proceeding on its own. If Parent so proceeds with the defense of any such
claim or Legal Proceeding:

    (A) All reasonable expenses relating to the defense of such claim or Legal
Proceeding shall be borne and paid exclusively by Parent; and

    (B) Parent shall have the right to settle, adjust or compromise such claim
or Legal Proceeding with the consent of the Designated Shareholders' Agent,
which consent shall not be unreasonably withheld (it being agreed that the
Designated Shareholders' Agent may, but need not, defer taking any action with
respect to a proposed settlement, adjustment or compromise of any claim or Legal
Proceeding for a period of up to sixty (60) days to seek specific authorization
from the Former Company Stockholders acting by affirmative vote of the majority
in interest thereof (excluding the shares held by the Designated Shareholders'
Agent and members of his family), provided that the results of any such vote
shall have no effect on any determination as to whether any such consent was or
was not unreasonably withheld and provided, further, that the failure to give
such consent shall not create any personal liability of the Designated
Shareholders' Agent to Parent or Surviving Corporation). Parent shall provide to
the Designated Shareholders' Agent a copy of all pleadings and other documents
filed or exchanged in respect of such claim or Legal Proceeding, and otherwise
keep the Designated Shareholders' Agent fully informed as to the status and
progress of such defense. Parent, as promptly as reasonably practicable, shall
notify the Designated Shareholders' Agent whether it intends to defend such
claim or Legal Proceeding. If Parent notifies the Designated Shareholders' Agent
that it does not intend to defend same, or if it fails timely to initiate or
proceed with the defense of same, the Former Company Stockholders, acting by and
through the Designated Shareholders' Agent, shall have the right, by notice to
Parent, to assume the defense of the claim or Legal Proceeding. Parent shall
fully cooperate with the Designated Shareholders' Agent in its defense of such
claim or Legal Proceeding. Nothing herein shall be construed to grant such right
to the Designated Shareholders' Agent under any other circumstances, including
the alleged quality of any defense proferred by Parent to such claim or Legal
Proceeding.

Parent shall give the Designated Shareholders' Agent prompt notice of the
commencement of any such Legal Proceeding against Parent or the Surviving
Corporation; PROVIDED, HOWEVER, that any failure on the part of Parent to so
notify the Designated Shareholders' Agent shall not limit any of the obligations
of the

                                      A-37
<PAGE>
Former Company Stockholders under this Section 9 (except to the extent such
failure materially prejudices the defense of such Legal Proceeding).

    9.8 EXERCISE OF REMEDIES BY INDEMNITEES OTHER THAN PARENT.  No Indemnitee
(other than Parent or any successor thereto or assign thereof) shall be
permitted to assert any indemnification claim or exercise any other remedy under
this Agreement unless Parent (or any successor thereto or assign thereof) shall
have consented to the assertion of such indemnification claim or the exercise of
such other remedy.

SECTION 10.  MISCELLANEOUS PROVISIONS

    10.1 DISPUTE RESOLUTION.  In the event of any controversy or claim arising
out of or relating to Section 9 of this Agreement, Parent and the Designated
Shareholders' Agent shall, in good faith, seek to resolve such controversy or
claim within 30 days of written notification from one party to the other party
(the "Notified Party") that any such controversy or claim exists. If Parent and
the Designated Shareholders' Agent are not able to resolve such controversy or
claim within 30 days of such written notification, then such controversy or
claim shall be settled by arbitration in accordance with the following
provisions:

    (A) Forum for arbitration shall be Santa Clara or San Francisco, California.

    (B) Governing law for the arbitration shall be the law of the State of
California, without reference to its conflicts of laws provisions.

    (C) There shall be three arbitrators, unless the parties hereto are able to
agree on a single arbitrator. In the absence of such agreement within ten days
after the initiation of an arbitration proceeding, the Designated Shareholders'
Agent shall select one arbitrator and Parent shall select one arbitrator, and
those two arbitrators shall then select within ten days a third arbitrator. If
those two arbitrators are unable to select a third arbitrator within such ten
day period, a third arbitrator shall be appointed by the commercial panel of the
American Arbitration Association. The decision in writing of at least two of the
three arbitrators shall be final and binding upon the parties.

    (D) Arbitration shall be administered by the American Arbitration
Association.

    (E) Rules of arbitration shall be the Commercial Arbitration Rules of the
American Arbitration Association, as modified by any other instructions that the
parties hereto may agree upon at the time, except that each party hereto shall
have the right to conduct discovery in any manner and to the extent authorized
by the Federal Rules of Civil Procedure as interpreted by the federal courts. In
the event of any conflict between those Rules and the provisions of this
Section 10.1, the provisions of this Section 10.1 shall prevail.

    (F) The arbitrators shall be bound by and strictly enforce the terms of this
Agreement and may not limit, expand or otherwise modify its terms. The
arbitrators shall make a good faith effort to apply substantive applicable law.
The arbitrators shall be bound to honor claims of privilege or work product
doctrine recognized at law, but the arbitrators shall have the discretion to
determine whether any such claim of privilege or work product doctrine applies.

    (G) The arbitrators' decision shall provide a reasoned basis for the
resolution of each dispute and for any award.

    (H) Each party shall bear its own expenses with respect to arbitration and
the parties shall share equally the fees and expenses of the American
Arbitration Association and the arbitrators.

    (I) The arbitrator shall have power and authority to award any remedy or
judgment that could be awarded by a court of law in California (including
summary judgment). The award rendered by arbitration shall be final and binding
upon the parties hereto, and judgment upon the award may be entered in any court
of competent jurisdiction in the United States.

                                      A-38
<PAGE>
    10.2 AMENDMENT.  This Agreement may be amended with the approval of the
respective boards of directors of the Company and Parent at any time (whether
before or after the adoption and approval of this Agreement and the approval of
the Merger by the stockholders of the Company); PROVIDED, HOWEVER, that after
any such adoption and approval of this Agreement and approval of the Merger by
the Company's stockholders, no amendment shall be made which by law requires
further approval of the stockholders of the Company without the further approval
of such stockholders. This Agreement may not be amended except by an instrument
in writing signed on behalf of each of the parties hereto.

    10.3 WAIVER.

    (A) No failure on the part of either party to exercise any power, right,
privilege or remedy under this Agreement, and no delay on the part of either
party in exercising any power, right, privilege or remedy under this Agreement,
shall operate as a waiver of such power, right, privilege or remedy; and no
single or partial exercise of any such power, right, privilege or remedy shall
preclude any other or further exercise thereof or of any other power, right,
privilege or remedy.

    (B) Neither party shall be deemed to have waived any claim arising out of
this Agreement, or any power, right, privilege or remedy under this Agreement,
unless the waiver of such claim, power, right, privilege or remedy is expressly
set forth in a written instrument duly executed and delivered on behalf of such
party; and any such waiver shall not be applicable or have any effect except in
the specific instance in which it is given.

    10.4 NO SURVIVAL OF REPRESENTATIONS AND WARRANTIES.  None of the
representations and warranties contained in this Agreement or in any certificate
delivered pursuant to this Agreement shall survive the Merger.

    10.5 ENTIRE AGREEMENT; COUNTERPARTS.  This Agreement, the Nondisclosure and
Nonsolicitation Agreement executed by the parties hereto and the other
agreements referred to herein constitute the entire agreement and supersede all
prior agreements and understandings, both written and oral, between the parties
with respect to the subject matter hereof and thereof. This Agreement may be
executed in several counterparts, each of which shall be deemed an original and
all of which shall constitute one and the same instrument

    10.6 APPLICABLE LAW; JURISDICTION.  This Agreement shall be governed by, and
construed in accordance with, the laws of the State of Delaware, regardless of
the laws that might otherwise govern under applicable principles of conflicts of
laws thereof. In any action between the parties arising out of or relating to
this Agreement or any of the transactions contemplated by this Agreement:
(a) each of the parties irrevocably and unconditionally consents and submits to
the exclusive jurisdiction and venue of the state and federal courts located in
the State of California; (b) if any such action is commenced in a state court,
then, subject to applicable law, no party shall object to the removal of such
action to any federal court located in the Northern District of California;
(c) each of the parties irrevocably waives the right to trial by jury; and
(d) each of the parties irrevocably consents to service of process by first
class certified mail, return receipt requested, postage prepaid, to the address
at which such party is to receive notice in accordance with Section 10.10.

    10.7 DISCLOSURE SCHEDULE.  Solely for the convenience of Parent, the Company
Disclosure Schedule shall be arranged in separate parts corresponding to the
numbered and lettered sections contained herein and the Company, in good faith,
shall endeavor to include information appropriate to the particular part.
Notwithstanding such arrangement, any information disclosed in any section or
part of the Company Disclosure Schedule shall be deemed disclosed for all
purposes under this Agreement.

    10.8 ATTORNEYS' FEES.  In any action at law or suit in equity to enforce
this Agreement or the rights of any of the parties hereunder, the prevailing
party in such action or suit shall be entitled to receive a

                                      A-39
<PAGE>
reasonable sum for its attorneys' fees and all other reasonable costs and
expenses incurred in such action or suit.

    10.9 ASSIGNABILITY.  This Agreement shall be binding upon, and shall be
enforceable by and inure solely to the benefit of, the parties hereto and their
respective successors and assigns; PROVIDED, HOWEVER, that neither this
Agreement nor any rights of a party hereunder may be assigned by such party
without the prior written consent of the other parties and any attempted
assignment of this Agreement or any of such rights without such consent shall be
void and of no effect. Nothing in this Agreement, express or implied, is
intended to or shall confer upon any Person any right, benefit or remedy of any
nature whatsoever under or by reason of this Agreement.

    10.10 NOTICES.  Any notice or other communication required or permitted to
be delivered to any party under this Agreement shall be in writing and shall be
deemed properly delivered, given and received (a) when delivered by hand, or
(b) two business days after sent by registered mail or, by courier or express
delivery service or by facsimile to the address or facsimile telephone number
set forth beneath the name of such party below (or to such other address or
facsimile telephone number as such party shall have specified in a written
notice given to the other parties hereto):

<TABLE>
<S>                <C>

if to Parent:      Aspect Development, Inc.
                   1395 Charleston Road Mountain
                   View, CA 94043
                   Attention: Dave Dury

with a copy to:

                   Cooley Godward LLP
                   Five Palo Alto Square
                   3000 El Camino Real
                   Palo Alto, CA 94306
                   Attention: James C. Kitch, Esq.

if to the Company:

                   c/o Robert E. Schrader
                   72 Haight Crossroad
                   Chappaqua, NY 10514

with a copy to:

                   Morrison Cohen Singer & Weinstein LLP
                   750 Lexington Avenue
                   New York, NY 10022
                   Attention: Henry A. Singer, Esq.

if to the Designated Shareholders' Agent:

                   Mr. Robert E. Schrader
                   72 Haight Crossroad
                   Chappaquq, NY 10514
</TABLE>

    10.11 COOPERATION.  The parties hereto agree to cooperate with one another
and to execute and deliver such further documents, certificates, agreements and
instruments and to take such other actions as may be reasonably requested by
Parent to evidence or reflect the transactions contemplated by this Agreement
and to carry out the intent and purposes of this Agreement.

                                      A-40
<PAGE>
    10.12 CONSTRUCTION.

    (A) For purposes of this Agreement, whenever the context requires: the
singular number shall include the plural, and vice versa; the masculine gender
shall include the feminine and neuter genders; the feminine gender shall include
the masculine and neuter genders; and the neuter gender shall include masculine
and feminine genders.

    (B) The parties hereto agree that any rule of construction to the effect
that ambiguities are to be resolved against the drafting party shall not be
applied in the construction or interpretation of this Agreement.

    (C) As used in this Agreement, the words "include" and "including," and
variations thereof, shall not be deemed to be terms of limitation, but rather
shall be deemed to be followed by the words "without limitation."

    (D) Except as otherwise indicated, all references in this Agreement to
"Sections," "Exhibits" and "Schedules" are intended to refer to Sections of this
Agreement and Exhibits or Schedules to this Agreement.

    (E) The bold-faced headings contained in this Agreement are for convenience
of reference only, shall not be deemed to be a part of this Agreement and shall
not be referred to in connection with the construction or interpretation of this
Agreement.

                     [BALANCE OF PAGE INTENTIONALLY BLANK]

                                      A-41
<PAGE>
    IN WITNESS WHEREOF, the parties have caused this Agreement to be executed as
of the date first above written.

                                     ASPECT DEVELOPMENT, INC.

                                     By: /s/ DAVID DURY
                                       -----------------------------------------

                                     Printed Name: David Dury
                                               ---------------------------------

                                     Title: Senior Vice President and Chief
                                     Financial Officer
                                         ---------------------------------------

                                     ASTA MERGER SUB, INC.

                                     By: /s/ DAVID DURY
                                       -----------------------------------------

                                     Printed Name: David Dury
                                               ---------------------------------

                                     Title: Chief Financial Officer
                                         ---------------------------------------

                                     TRANSITION ANALYSIS COMPONENT TECHNOLOGY,
                                     INC.

                                     By: /s/ ROBERT E. SCHRADER
                                       -----------------------------------------

                                     Printed Name: Robert E. Schrader
                                               ---------------------------------

                                     Title: President
                                         ---------------------------------------

                                      A-42
<PAGE>
                                   EXHIBIT A
                              CERTAIN DEFINITIONS

    For purposes of the Agreement (including this Exhibit A):

    ACQUIRED CORPORATION CONTRACT.  "Acquired Corporation Contract" shall mean
any Contract: (a) to which any of the Acquired Corporations is a party; (b) by
which any of the Acquired Corporations or any asset of any of the Acquired
Corporations is or may become bound or under which any of the Acquired
Corporations has, or may become subject to, any obligation; or (c) under which
any of the Acquired Corporations has or may acquire any right or interest.

    ACQUIRED CORPORATION PROPRIETARY ASSET.  "Acquired Corporation Proprietary
Asset" shall mean any Proprietary Asset owned by or licensed to any of the
Acquired Corporations or otherwise used by any of the Acquired Corporations.

    ACQUIRED CORPORATION SOURCE CODE.  "Acquired Corporation Source Code" shall
mean any source code, or any portion, aspect or segment of any source code,
relating to any Proprietary Asset owned by or licensed to any of the Acquired
Corporations or otherwise used by any of the Acquired Corporations.

    ACQUISITION PROPOSAL.  "Acquisition Proposal" shall mean any offer or
proposal (other than an offer or proposal by Parent) contemplating or otherwise
relating to any Acquisition Transaction.

    ACQUISITION TRANSACTION.  "Acquisition Transaction" shall mean any
transaction or series of transactions involving:

    (A)  any merger, consolidation, amalgamation, share exchange, business
combination, issuance of securities, acquisition of securities, tender offer,
exchange offer or other similar transaction (i) in which any of the Acquired
Corporations is a constituent company, (ii) in which a Person or "group" (as
defined in the Exchange Act and the rules promulgated thereunder) of Persons
directly or indirectly acquires the Company or more than 20% of the Company's
business or directly or indirectly acquires beneficial or record ownership of
securities representing, or exchangeable for or convertible into, more than 20%
of the outstanding securities of any class of voting securities of any of the
Acquired Corporations, or (iii) in which any of the Acquired Corporations issues
securities representing more than 20% of the outstanding securities of any class
of voting securities of the Company;

    (B)  any sale, lease, exchange, transfer, license, acquisition or
disposition of more than 20% of the assets of the Company; or

    (C)  any liquidation or dissolution of the Company.

    ADJUSTED FULLY DILUTED COMPANY SHARE AMOUNT.  "Adjusted Fully Diluted
Company Share Amount" shall mean the sum of (A) the aggregate number of shares
of Company Common Stock outstanding immediately prior to the Closing Date
(including any such shares that are subject to a repurchase option or risk of
forfeiture under any restricted stock purchase agreement or other agreement),
and (B) the aggregate number of shares of (i) Company Common Stock purchasable
under or otherwise subject to all Company Options outstanding immediately prior
to the Closing Date (including all shares of Company Common Stock that may
ultimately be purchased under Company Options that are unvested or are otherwise
not then exercisable unless such options terminate by their terms at or before
the Effective Time), and (ii) Company Common Stock subject to all warrants,
conversion rights or such other rights to purchase or acquire capital stock of
the Company.

    AGREEMENT.  "Agreement" shall mean the Agreement and Plan of Merger and
Reorganization to which this Exhibit A is attached, as it may be amended from
time to time.

    COMPANY COMMON STOCK.  "Company Common Stock" shall mean the Common Stock,
$0.01 par value per share, of the Company.

                                      A-43
<PAGE>
    COMPANY DISCLOSURE SCHEDULE.  "Company Disclosure Schedule" shall mean the
Company Disclosure Schedule that has been prepared by the Company in accordance
with the requirements of Section 9.6 of the Agreement and that has been
delivered by the Company to Parent on the date of the Agreement and signed by
the President of the Company.

    COMPANY MATERIAL ADVERSE EFFECT.  An event, violation, inaccuracy,
circumstance or other matter will be deemed to have a "Company Material Adverse
Effect" if such event, violation, inaccuracy, circumstance or other matter
(considered together with all other matters that would constitute exceptions to
the representations and warranties set forth in the Agreement but for the
presence of "Company Material Adverse Effect" or other materiality
qualifications, or any similar qualifications, in such representations and
warranties) have resulted or would likely result (i), in any period of
12 months or less from the date of inquiry, in an increase in cost, expense,
loss or liability or a decrease in revenue in excess of $500,000, (ii) in a
material adverse effect on the ability of the Company to consummate the Merger
or any of the other transactions contemplated by the Agreement or to perform any
of its obligations under the Agreement, or (iii) in a material adverse effect on
Parent's ability to vote, receive dividends with respect to or otherwise
exercise ownership rights with respect to the stock of the Surviving
Corporation.

    CONSENT.  "Consent" shall mean any approval, consent, ratification,
permission, waiver or authorization (including any Governmental Authorization).

    CONTRACT.  "Contract" shall mean any written, oral or other agreement,
contract, subcontract, lease, understanding, instrument, note, option, warranty,
purchase order, license, sublicense, insurance policy, benefit plan or legally
binding commitment or undertaking of any nature.

    DAMAGES.  "Damages" shall include any loss, damage, injury, decline in
value, lost opportunity, liability, claim, demand, settlement, judgment, award,
fine, penalty, Tax, fee, charge, cost or expense of any nature excluding,
however, all fees, charges, expenses or costs of any kind or description
incurred in the investigation, defense or prosecution of any claims or Legal
Proceedings; provided, however, that such Damages shall be reduced by:
(A) benefits for savings or refunds or credits against Taxes realized as a
result of such Damages (before reduction for such Tax benefits); (B) insurance
payments received for claims relating to facts underlying any breach of any
representation or warranty in the Agreement or the commencement of any Legal
Proceeding; and (C) proceeds received from any third party in respect of the
matter underlying such breach of representation or warranty or the commencement
of such Legal Proceeding.

    ENCUMBRANCE.  "Encumbrance" shall mean any lien, pledge, hypothecation,
charge, mortgage, security interest, encumbrance, claim, infringement,
interference, option, right of first refusal, preemptive right, community
property interest or restriction of any nature (including any restriction on the
voting of any security, any restriction on the transfer of any security or other
asset, any restriction on the receipt of any income derived from any asset, any
restriction on the use of any asset and any restriction on the possession,
exercise or transfer of any other attribute of ownership of any asset).

    ENTITY.  "Entity" shall mean any corporation (including any non-profit
corporation), general partnership, limited partnership, limited liability
partnership, joint venture, estate, trust, company (including any company
limited by shares, limited liability company or joint stock company), firm,
society or other enterprise, association, organization or entity.

    EXCHANGE ACT.  "Exchange Act" shall mean the Securities Exchange Act of
1934, as amended.

    FORM S-4 REGISTRATION STATEMENT.  "Form S-4 Registration Statement" shall
mean the registration statement on Form S-4 to be filed with the SEC by Parent
in connection with issuance of Parent Common Stock in the Merger, as said
registration statement may be amended prior to the time it is declared effective
by the SEC.

                                      A-44
<PAGE>
    GOVERNMENTAL AUTHORIZATION.  "Governmental Authorization" shall mean any:
(a) permit, license, certificate, franchise, permission, variance, clearance,
registration, qualification or authorization issued, granted, given or otherwise
made available by or under the authority of any Governmental Body or pursuant to
any Legal Requirement; or (b) right under any Contract with any Governmental
Body.

    GOVERNMENTAL BODY.  "Governmental Body" shall mean any: (a) nation, state,
commonwealth, province, territory, county, municipality, district or other
jurisdiction of any nature; (b) federal, state, local, municipal, foreign or
other government; or (c) governmental or quasi-governmental authority of any
nature (including any governmental division, department, agency, commission,
instrumentality, official, ministry, fund, foundation, center, organization,
unit, body or Entity and any court or other tribunal).

    HSR ACT.  "HSR Act" shall mean the Hart-Scott-Rodino Antitrust Improvements
Act of 1976, as amended.

    INDEMNITEES.  "Indemnitees" shall mean the following Persons: (a) Parent;
(b) Parent's current and future affiliates (including the Surviving
Corporation); (c) the respective Representatives of the Persons referred to in
clauses "(a)" and "(b)" above; and (d) the respective successors and assigns of
the Persons referred to in clauses "(a)", "(b)" and "(c)" above; PROVIDED,
HOWEVER, that the Shareholders shall not be deemed to be "Indemnitees."

    KNOWLEDGE.  "Knowledge" or "to the best of the Company's knowledge" or words
of similar import shall mean to the actual knowledge of Messrs. Schrader, Baca,
Hauser and Blackford, from whatever source derived, after having made an
inquiry, only of the following persons: David Pooler, Joe Mastropolo and Ron
Burleson.

    LEGAL PROCEEDING.  "Legal Proceeding" shall mean any action, suit,
litigation, arbitration, proceeding (including any civil, criminal,
administrative, investigative or appellate proceeding), hearing, inquiry, audit,
examination or investigation commenced, brought, conducted or heard by or
before, or otherwise involving, any court or other Governmental Body or any
arbitrator or arbitration panel.

    LEGAL REQUIREMENT.  "Legal Requirement" shall mean any federal, state,
local, municipal, foreign or other law, statute, constitution, principle of
common law, resolution, ordinance, code, edict, decree, rule, regulation, ruling
or requirement issued, enacted, adopted, promulgated, implemented or otherwise
put into effect by or under the authority of any Governmental Body (or under the
authority of the Nasdaq National Market).

    PARENT AVERAGE STOCK PRICE.  "Parent Average Stock Price" shall mean eighty
percent (80%) of the average of the closing sales price of a share of Parent
Common Stock as reported on the Nasdaq National Market for each of the five
consecutive trading days immediately preceding the date on which this Agreement
is executed by the parties hereto.

    PARENT COMMON STOCK.  "Parent Common Stock" shall mean the Common Stock,
$.001 par value per share, of Parent.

    PARENT MATERIAL ADVERSE EFFECT.  "Parent Material Adverse Effect" shall mean
any material adverse effect on (i) the business, condition, capitalization,
assets, liabilities, operations, or financial performance of the Parent and its
Subsidiaries, taken as a whole, or (ii) the ability of the Parent to consummate
the Merger or any of the other transactions contemplated by the Agreement or to
perform any of its obligations under this Agreement.

    PERSON.  "Person" shall mean any individual, Entity or Governmental Body.

    PROPRIETARY ASSET.  "Proprietary Asset" shall mean any: (a) patent, patent
application, trademark (whether registered or unregistered), trademark
application, trade name, fictitious business name, service mark (whether
registered or unregistered), service mark application, copyright (whether
registered or

                                      A-45
<PAGE>
unregistered), copyright application, maskwork, maskwork application, trade
secret, know-how, customer list, franchise, system, computer software, computer
program, source code, algorithm, invention, design, blueprint, engineering
drawing, proprietary product, technology, proprietary right or other
intellectual property right or intangible asset; or (b) right to use or exploit
any of the foregoing.

    PROSPECTUS/PROXY STATEMENT.  "Prospectus/Proxy Statement" shall mean the
proxy statement to be sent to the Company's stockholders in connection with the
Company Stockholders' Meeting.

    REPRESENTATIVES.  "Representatives" shall mean officers, directors,
employees, agents, attorneys, accountants, advisors and representatives.

    SEC.  "SEC" shall mean the United States Securities and Exchange Commission.

    SECURITIES ACT.  "Securities Act" shall mean the Securities Act of 1933, as
amended.

    SUBSIDIARY.  An entity shall be deemed to be a "Subsidiary" of another
Person if such Person directly or indirectly owns, beneficially or of record,
(a) an amount of voting securities of other interests in such Entity that is
sufficient to enable such Person to elect at leased a majority of the members of
such Entity's board of directors or other governing body, or (b) at least 50% of
the outstanding equity or financial interests or such Entity.

    SUPERIOR OFFER.  "Superior Offer" shall mean an unsolicited, bona fide
written offer made by a third party to purchase more than 50% of the outstanding
shares of Company Common Stock or assets on terms that the board of directors of
the Company determines, in its reasonable judgment, based upon the written
advice of its financial advisor, to be more favorable to the Company's
stockholders than the terms of the Merger; PROVIDED, HOWEVER, that any such
offer shall not be deemed to be a "Superior Offer" if any financing required to
consummate the transaction contemplated by such offer is not likely to be
obtained by such third party on a timely basis.

    TAX.  "Tax" shall mean any tax (including any income tax, franchise tax,
capital gains tax, gross receipts tax, value-added tax, surtax, estimated tax,
unemployment tax, national health insurance tax, excise tax, ad valorem tax,
transfer tax, stamp tax, sales tax, use tax, property tax, business tax,
withholding tax or payroll tax), levy, assessment, tariff, duty (including any
customs duty), deficiency or fee, and any related charge or amount (including
any fine, penalty or interest), imposed, assessed or collected by or under the
authority of any Governmental Body.

    TAX RETURN.  "Tax Return" shall mean any return (including any information
return), report, statement, declaration, estimate, schedule, notice,
notification, form, election, certificate or other document or information filed
with or submitted to, or required to be filed with or submitted to, any
Governmental Body in connection with the determination, assessment, collection
or payment of any Tax or in connection with the administration, implementation
or enforcement of or compliance with any Legal Requirement relating to any Tax.

                                      A-46
<PAGE>
                               FIRST AMENDMENT TO
                      AGREEMENT AND PLAN OF REORGANIZATION

    This Amendment No. 1 ("Amendment No. 1") to the Agreement and Plan of
Reorganization dated January 17, 2000 ("Original Agreement") is made and entered
into as of April   , 2000 by and among Parent, Merger Sub and the Company. All
capitalized terms not otherwise defined herein shall have the meanings ascribed
to them in the Original Agreement.

    1.  Except to the extent expressly modified by this Amendment No. 1, the
       Original Agreement remains in full force and effect in accordance with
       its terms.

    1.  The second sentence of Recital "B" of the Original Agreement is hereby
       modified to read in full as follows: "For financial reporting purposes,
       it is intended that the Merger be accounted for as a purchase in
       accordance with GAAP."

    3.  Section 1.9 of the Original Agreement is hereby modified to read in full
       as follows: "For financial reporting purposes, the Merger is intended to
       be accounted for as a purchase in accordance with GAAP."

    4.  Section 2.27 of the Original Agreement is hereby deleted.

    5.  Section 5.13 of the Original Agreement is hereby deleted.

    6.  Section 5.14 of the Original Agreement is hereby amended to provide that
       the form of Affiliate Agreement shall be in the form annexed to this
       Amendment No. 1 as Exhibit A.

    7.  Section 5.15 of the Original Agreement is hereby deleted.

    8.  Section 6.5(b) of the Original Agreement is hereby amended to provide
       that the form of Affiliate Agreement shall be in the form annexed to this
       Amendment No. 1 as Exhibit A.

    9.  Sections 6.5(g) and (h) of the Original Agreement are hereby deleted.

    10. Section 8.1(b) of the Original Agreement is hereby amended by replacing
       the date "June 30, 2000" with the date "August 15, 2000."

        In Witness Whereof, the parties have caused this Amendment No. 1 to be
executed as of April   , 2000.

                                          Aspect Development, Inc.
                                          By:
                                          --------------------------------------
                                          Printed Name:
                                          --------------------------------------
                                          Title:
                                          --------------------------------------
                                          ASTA Merger Sub, Inc.
                                          By:
                                          --------------------------------------
                                          Printed Name:
                                          --------------------------------------
                                          Title:
                                          --------------------------------------
                                          Transition Analysis Component
                                          Technology, Inc.

                                      A-47
<PAGE>
                                          By:
                                          --------------------------------------
                                          Printed Name:
                                          --------------------------------------
                                          Title:
                                          --------------------------------------

                                      A-48
<PAGE>
                                                                         ANNEX B

                             TITLE 8. CORPORATIONS
                       CHAPTER 1. GENERAL CORPORATION LAW
               SUBCHAPTER IX. MERGER, CONSOLIDATION OR CONVERSION
                            8 DEL. C. SECTION (1999)

SECTION 262. APPRAISAL RIGHTS

    (a) Any stockholder of a corporation of this State who holds shares of stock
on the date of the making of a demand pursuant to subsection (d) of this section
with respect to such shares, who continuously holds such shares through the
effective date of the merger or consolidation, who has otherwise complied with
subsection (d) of this section and who has neither voted in favor of the merger
or consolidation nor consented thereto in writing pursuant to Section 228 of
this title shall be entitled to an appraisal by the Court of Chancery of the
fair value of the stockholder's shares of stock under the circumstances
described in subsections (b) and (c) of this section. As used in this section,
the word "stockholder" means a holder of record of stock in a stock corporation
and also a member of record of a nonstock corporation; the words "stock" and
"share" mean and include what is ordinarily meant by those words and also
membership or membership interest of a member of a nonstock corporation; and the
words "depository receipt" mean a receipt or other instrument issued by a
depository representing an interest in one or more shares, or fractions thereof,
solely of stock of a corporation, which stock is deposited with the depository.

    (b) Appraisal rights shall be available for the shares of any class or
series of stock of a constituent corporation in a merger or consolidation to be
effected pursuant to Section 251 (other than a merger effected pursuant to
Section 251(g) of this title), Section 252, Section 254, Section 257,
Section 258, Section 263 or Section 264 of this title:

        (1) Provided, however, that no appraisal rights under this section shall
    be available for the shares of any class or series of stock, which stock, or
    depository receipts in respect thereof, at the record date fixed to
    determine the stockholders entitled to receive notice of and to vote at the
    meeting of stockholders to act upon the agreement of merger or
    consolidation, were either (i) listed on a national securities exchange or
    designated as a national market system security on an interdealer quotation
    system by the National Association of Securities Dealers, Inc. or (ii) held
    of record by more than 2,000 holders; and further provided that no appraisal
    rights shall be available for any shares of stock of the constituent
    corporation surviving a merger if the merger did not require for its
    approval the vote of the stockholders of the surviving corporation as
    provided in subsection (f) of Section 251 of this title.

        (2) Notwithstanding paragraph (1) of this subsection, appraisal rights
    under this section shall be available for the shares of any class or series
    of stock of a constituent corporation if the holders thereof are required by
    the terms of an agreement of merger or consolidation pursuant to
    SectionSection 251, 252, 254, 257, 258, 263 and 264 of this title to accept
    for such stock anything except:

           a. Shares of stock of the corporation surviving or resulting from
       such merger or consolidation, or depository receipts in respect thereof;

           b. Shares of stock of any other corporation, or depository receipts
       in respect thereof, which shares of stock (or depository receipts in
       respect thereof) or depository receipts at the effective date of the
       merger or consolidation will be either listed on a national securities
       exchange or designated as a national market system security on an
       interdealer quotation system by the National Association of Securities
       Dealers, Inc. or held of record by more than 2,000 holders;

           c. Cash in lieu of fractional shares or fractional depository
       receipts described in the foregoing subparagraphs a. and b. of this
       paragraph; or

                                      B-1
<PAGE>
           d. Any combination of the shares of stock, depository receipts and
       cash in lieu of fractional shares or fractional depository receipts
       described in the foregoing subparagraphs a., b. and c. of this paragraph.

        (3) In the event all of the stock of a subsidiary Delaware corporation
    party to a merger effected under Section 253 of this title is not owned by
    the parent corporation immediately prior to the merger, appraisal rights
    shall be available for the shares of the subsidiary Delaware corporation.

    (c) Any corporation may provide in its certificate of incorporation that
appraisal rights under this section shall be available for the shares of any
class or series of its stock as a result of an amendment to its certificate of
incorporation, any merger or consolidation in which the corporation is a
constituent corporation or the sale of all or substantially all of the assets of
the corporation. If the certificate of incorporation contains such a provision,
the procedures of this section, including those set forth in subsections (d) and
(e) of this section, shall apply as nearly as is practicable.

    (d) Appraisal rights shall be perfected as follows:

        (1) If a proposed merger or consolidation for which appraisal rights are
    provided under this section is to be submitted for approval at a meeting of
    stockholders, the corporation, not less than 20 days prior to the meeting,
    shall notify each of its stockholders who was such on the record date for
    such meeting with respect to shares for which appraisal rights are available
    pursuant to subsection (b) or (c) hereof that appraisal rights are available
    for any or all of the shares of the constituent corporations, and shall
    include in such notice a copy of this section. Each stockholder electing to
    demand the appraisal of such stockholder's shares shall deliver to the
    corporation, before the taking of the vote on the merger or consolidation, a
    written demand for appraisal of such stockholder's shares. Such demand will
    be sufficient if it reasonably informs the corporation of the identity of
    the stockholder and that the stockholder intends thereby to demand the
    appraisal of such stockholder's shares. A proxy or vote against the merger
    or consolidation shall not constitute such a demand. A stockholder electing
    to take such action must do so by a separate written demand as herein
    provided. Within 10 days after the effective date of such merger or
    consolidation, the surviving or resulting corporation shall notify each
    stockholder of each constituent corporation who has complied with this
    subsection and has not voted in favor of or consented to the merger or
    consolidation of the date that the merger or consolidation has become
    effective; or

        (2) If the merger or consolidation was approved pursuant to Section 228
    or Section 253 of this title, each constituent corporation, either before
    the effective date of the merger or consolidation or within ten days
    thereafter, shall notify each of the holders of any class or series of stock
    of such constituent corporation who are entitled to appraisal rights of the
    approval of the merger or consolidation and that appraisal rights are
    available for any or all shares of such class or series of stock of such
    constituent corporation, and shall include in such notice a copy of this
    section; provided that, if the notice is given on or after the effective
    date of the merger or consolidation, such notice shall be given by the
    surviving or resulting corporation to all such holders of any class or
    series of stock of a constituent corporation that are entitled to appraisal
    rights. Such notice may, and, if given on or after the effective date of the
    merger or consolidation, shall, also notify such stockholders of the
    effective date of the merger or consolidation. Any stockholder entitled to
    appraisal rights may, within 20 days after the date of mailing of such
    notice, demand in writing from the surviving or resulting corporation the
    appraisal of such holder's shares. Such demand will be sufficient if it
    reasonably informs the corporation of the identity of the stockholder and
    that the stockholder intends thereby to demand the appraisal of such
    holder's shares. If such notice did not notify stockholders of the effective
    date of the merger or consolidation, either (i) each such constituent
    corporation shall send a second notice before the effective date of the
    merger or consolidation notifying each of the holders of any class or series
    of stock of such constituent corporation that are entitled to appraisal
    rights of the effective date of the merger or consolidation or (ii) the
    surviving or resulting corporation shall send such a second notice

                                      B-2
<PAGE>
    to all such holders on or within 10 days after such effective date;
    provided, however, that if such second notice is sent more than 20 days
    following the sending of the first notice, such second notice need only be
    sent to each stockholder who is entitled to appraisal rights and who has
    demanded appraisal of such holder's shares in accordance with this
    subsection. An affidavit of the secretary or assistant secretary or of the
    transfer agent of the corporation that is required to give either notice
    that such notice has been given shall, in the absence of fraud, be prima
    facie evidence of the facts stated therein. For purposes of determining the
    stockholders entitled to receive either notice, each constituent corporation
    may fix, in advance, a record date that shall be not more than 10 days prior
    to the date the notice is given, provided, that if the notice is given on or
    after the effective date of the merger or consolidation, the record date
    shall be such effective date. If no record date is fixed and the notice is
    given prior to the effective date, the record date shall be the close of
    business on the day next preceding the day on which the notice is given.

    (e) Within 120 days after the effective date of the merger or consolidation,
the surviving or resulting corporation or any stockholder who has complied with
subsections (a) and (d) hereof and who is otherwise entitled to appraisal
rights, may file a petition in the Court of Chancery demanding a determination
of the value of the stock of all such stockholders. Notwithstanding the
foregoing, at any time within 60 days after the effective date of the merger or
consolidation, any stockholder shall have the right to withdraw such
stockholder's demand for appraisal and to accept the terms offered upon the
merger or consolidation. Within 120 days after the effective date of the merger
or consolidation, any stockholder who has complied with the requirements of
subsections (a) and (d) hereof, upon written request, shall be entitled to
receive from the corporation surviving the merger or resulting from the
consolidation a statement setting forth the aggregate number of shares not voted
in favor of the merger or consolidation and with respect to which demands for
appraisal have been received and the aggregate number of holders of such shares.
Such written statement shall be mailed to the stockholder within 10 days after
such stockholder's written request for such a statement is received by the
surviving or resulting corporation or within 10 days after expiration of the
period for delivery of demands for appraisal under subsection (d) hereof,
whichever is later.

    (f) Upon the filing of any such petition by a stockholder, service of a copy
thereof shall be made upon the surviving or resulting corporation, which shall
within 20 days after such service file in the office of the Register in Chancery
in which the petition was filed a duly verified list containing the names and
addresses of all stockholders who have demanded payment for their shares and
with whom agreements as to the value of their shares have not been reached by
the surviving or resulting corporation. If the petition shall be filed by the
surviving or resulting corporation, the petition shall be accompanied by such a
duly verified list. The Register in Chancery, if so ordered by the Court, shall
give notice of the time and place fixed for the hearing of such petition by
registered or certified mail to the surviving or resulting corporation and to
the stockholders shown on the list at the addresses therein stated. Such notice
shall also be given by 1 or more publications at least 1 week before the day of
the hearing, in a newspaper of general circulation published in the City of
Wilmington, Delaware or such publication as the Court deems advisable. The forms
of the notices by mail and by publication shall be approved by the Court, and
the costs thereof shall be borne by the surviving or resulting corporation.

    (g) At the hearing on such petition, the Court shall determine the
stockholders who have complied with this section and who have become entitled to
appraisal rights. The Court may require the stockholders who have demanded an
appraisal for their shares and who hold stock represented by certificates to
submit their certificates of stock to the Register in Chancery for notation
thereon of the pendency of the appraisal proceedings; and if any stockholder
fails to comply with such direction, the Court may dismiss the proceedings as to
such stockholder.

    (h) After determining the stockholders entitled to an appraisal, the Court
shall appraise the shares, determining their fair value exclusive of any element
of value arising from the accomplishment or expectation of the merger or
consolidation, together with a fair rate of interest, if any, to be paid upon
the amount determined to be the fair value. In determining such fair value, the
Court shall take into account

                                      B-3
<PAGE>
all relevant factors. In determining the fair rate of interest, the Court may
consider all relevant factors, including the rate of interest which the
surviving or resulting corporation would have had to pay to borrow money during
the pendency of the proceeding. Upon application by the surviving or resulting
corporation or by any stockholder entitled to participate in the appraisal
proceeding, the Court may, in its discretion, permit discovery or other pretrial
proceedings and may proceed to trial upon the appraisal prior to the final
determination of the stockholder entitled to an appraisal. Any stockholder whose
name appears on the list filed by the surviving or resulting corporation
pursuant to subsection (f) of this section and who has submitted such
stockholder's certificates of stock to the Register in Chancery, if such is
required, may participate fully in all proceedings until it is finally
determined that such stockholder is not entitled to appraisal rights under this
section.

    (i) The Court shall direct the payment of the fair value of the shares,
together with interest, if any, by the surviving or resulting corporation to the
stockholders entitled thereto. Interest may be simple or compound, as the Court
may direct. Payment shall be so made to each such stockholder, in the case of
holders of uncertificated stock forthwith, and the case of holders of shares
represented by certificates upon the surrender to the corporation of the
certificates representing such stock. The Court's decree may be enforced as
other decrees in the Court of Chancery may be enforced, whether such surviving
or resulting corporation be a corporation of this State or of any state.

    (j) The costs of the proceeding may be determined by the Court and taxed
upon the parties as the Court deems equitable in the circumstances. Upon
application of a stockholder, the Court may order all or a portion of the
expenses incurred by any stockholder in connection with the appraisal
proceeding, including, without limitation, reasonable attorney's fees and the
fees and expenses of experts, to be charged pro rata against the value of all
the shares entitled to an appraisal.

    (k) From and after the effective date of the merger or consolidation, no
stockholder who has demanded appraisal rights as provided in subsection (d) of
this section shall be entitled to vote such stock for any purpose or to receive
payment of dividends or other distributions on the stock (except dividends or
other distributions payable to stockholders of record at a date which is prior
to the effective date of the merger or consolidation); provided, however, that
if no petition for an appraisal shall be filed within the time provided in
subsection (e) of this section, or if such stockholder shall deliver to the
surviving or resulting corporation a written withdrawal of such stockholder's
demand for an appraisal and an acceptance of the merger or consolidation, either
within 60 days after the effective date of the merger or consolidation as
provided in subsection (e) of this section or thereafter with the written
approval of the corporation, then the right of such stockholder to an appraisal
shall cease. Notwithstanding the foregoing, no appraisal proceeding in the Court
of Chancery shall be dismissed as to any stockholder without the approval of the
Court, and such approval may be conditioned upon such terms as the Court deems
just.

    (l) The shares of the surviving or resulting corporation to which the shares
of such objecting stockholders would have been converted had they assented to
the merger or consolidation shall have the status of authorized and unissued
shares of the surviving or resulting corporation.

                                      B-4
<PAGE>
                                    PART II
                     INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 20. INDEMNIFICATION OF DIRECTORS AND OFFICERS

    Under Section 145 of the Delaware General Corporation Law, Aspect has broad
powers to indemnify its directors and officers against liabilities they may
incur in such capacities, including liabilities under the Securities Act of
1933, as amended (Securities Act). Aspect's By-laws also provide that Aspect
will indemnify its directors and executive officers, and may indemnify its other
officers, employees and other agents, to the fullest extent not prohibited by
Delaware law.

    Aspect's Restated Certificate of Incorporation (Restated Certificate)
provides that the liability of its directors for monetary damages shall be
eliminated to the fullest extent permissible under Delaware law. Pursuant to
Delaware law, this includes elimination of liability for monetary damages for
breach of the directors' fiduciary duty of care to Aspect and its stockholders.
These provisions do not eliminate the directors' duty of care and, in
appropriate circumstances, equitable remedies such as injunctive or other forms
of non-monetary relief will remain available under Delaware law. In addition,
each director will continue to be subject to liability for breach of the
director's duty of loyalty to Aspect, for acts omissions not in good faith or
involving intentional misconduct, for knowing violations of law, for any
transaction from which the director derived an improper personal benefit, and
for payment of dividends or approval of stock repurchases or redemptions that
are unlawful under Delaware law. The provision also does not affect a director's
responsibilities under any other laws, such as the federal securities laws or
state or federal environmental laws.

    Aspect has been authorized by the board of directors to enter into
agreements with its directors and officers that require Aspect to indemnify such
persons to the fullest extent authorized or permitted by the provisions of the
Restated Certificate and Delaware law against expenses, judgments, fines,
settlements and other amounts actually and reasonably incurred (including
expenses of a derivative action) in connection with any proceeding, whether
actual or threatened, to which any such person may be made a party by reason of
the fact that such person is or was a director, officer, employee or other agent
of Aspect or any of its affiliated enterprises. Delaware law permits such
indemnification provided such person acted in good faith and in a manner such
person reasonably believed to be in or not opposed to the best interest of
Aspect and, with respect to any criminal proceeding, had reasonable cause to
believe his or her conduct was unlawful. The indemnification agreements also set
forth certain procedures that will apply in the event of a claim for
indemnification thereunder.

    At present, there is no pending litigation or proceeding involving a
director or officer of Aspect as to which indemnification is being sought nor is
Aspect aware of any threatened litigation that may result in claims for
indemnification by any officer or director.

ITEM 21. EXHIBITS

<TABLE>
<CAPTION>
EXHIBIT NUMBER          DESCRIPTION
- --------------          ------------------------------------------------------------
<C>                     <S>
        +2.1            Agreement and Plan of Reorganization between Aspect
                        Development, Inc., ASTA Merger Sub, Inc. and Transition
                        Analysis Component Technology, Inc., dated January 17, 2000.

        +2.2            Amendment No. 1 to Agreement and Plan of Reorganization,
                        dated April 6, 2000

       ++2.3            Voting Agreement

         3.1(3)         Restated Certificate of Incorporation, as amended to date.

         3.2(1)         By-Laws.
</TABLE>

                                      II-1
<PAGE>

<TABLE>
<CAPTION>
EXHIBIT NUMBER          DESCRIPTION
- --------------          ------------------------------------------------------------
<C>                     <S>
         4.1(1)         Restated Rights Agreement, dated December 3, 1993.

         5.1            Opinion of Cooley Godward LLP regarding the validity of the
                        shares of Aspect Development, Inc. common stock to be
                        registered under this registration statement.

         8.1            Opinion of Cooley Godward LLP regarding certain United
                        States federal income tax consequences of the merger.

         8.2            Opinion of Morrison Cohen Singer & Weinstein LLP regarding
                        certain United States federal income tax consequences of the
                        merger.

       *10.1(1)         Amended and Restated 1992 Stock Option Plan and forms of
                        agreements thereunder.

       *10.2(1)         1996 Employee Stock Purchase Plan.

       *10.3(1)         1996 Outside Directors Stock Option Plan and forms of
                        agreement thereunder.

        10.4(1)         Sublease Agreement between Aspect Development, Inc. and
                        Insignia Solutions, Inc., dated December 9, 1995.

        10.5(1)         Agreement of Lease between Aspect Development, Inc. and
                        Mareld Company, Inc., dated June 2, 1994.

        10.6(1)         Agreement of Lease between Aspect Development India and M.S.
                        Janardhan Corporation, dated September 18, 1995.

        10.7(1)         Agreement of Lease between Aspect-DCM Pvt. Ltd. and the
                        co-owners of Leo Shopping Complex, dated February 10, 1994.

        21.1(4)         List of Subsidiaries.

        23.1            Consent of Arthur Andersen LLP, Independent Public
                        Accountants.

        23.2            Consent of Ernst & Young LLP, Independent Auditors.

        23.3            Consent of Ernst & Young LLP, Independent Auditors.

        23.4            Consent of Arthur Andersen LLP, Independent Public
                        Accountants.

        24.1            Power of Attorney. (See page II-4)

        99.1(2)         Rights Agreement dated as of October 7, 1998 among the
                        Company and U.S. Stock Transfer Corporation.

        99.2            Form of Proxy.
</TABLE>

- ------------------------

+   Filed as Annex A to the proxy statement/prospectus which forms a part of
    this Registration Statement.

++   To be filed by amendment

*   Constitutes a management contract or compensatory plan required to be filed
    pursuant to Item 13(a) of Form 10-K.

(1) Incorporated by reference to identically numbered exhibit to Registrant's
    Registration Statement on Form SB-2 (file no. 333-3840-LA) filed on
    April 19, 1996.

(2) Incorporated by reference to Registrant's Current Report on Form 8-K filed
    October 7, 1998.

(3) Incorporated by reference to Registrant's Annual Report on Form 10-K/A filed
    on April 30, 1999.

(4) Incorporated by reference to Registrant's Annual Report on Form 10-K filed
    on March 30, 2000.

                                      II-2
<PAGE>
ITEM 22. UNDERTAKINGS

    The undersigned registrant hereby undertakes:

    1.  that, for purposes of determining any liability under the Securities Act
       of 1933, as amended (the "Securities Act"), each filing of the
       registrant's annual report pursuant to Section 13(a) or 15(d) of the
       Securities Exchange Act of 1934, as amended the (the "Exchange Act")
       (and, where applicable, each filing of an employee benefit plan's annual
       report pursuant to Section 15(d) of the Exchange Act) that is
       incorporated by reference in the registration statement shall be deemed
       to be a new registration statement relating to the securities offered
       therein, and the offering of such securities at that time shall be deemed
       to be the initial bona fide offering thereof;

    2.  that prior to any public reoffering of the securities registered
       hereunder through use of a prospectus which is a part of this
       registration statement, by any person or party who is deemed to be an
       underwriter within the meaning of the Rule 145 (c), the issuer undertakes
       that such reoffering prospectus will contain the information called for
       by this form with respect to reoffering by persons who may be deemed
       underwriters, in addition to the information called for by the other
       Items of this form;

    3.  that every prospectus (i) that is filed pursuant to paragraph (2)
       immediately preceding, or (ii) that purports to meet the requirements of
       Section 10(a)(3) of the Securities Act and is used in connection with an
       offering of securities subject to Rule 415, will be filed as a part of an
       amendment to this registration statement and will not be used until such
       amendment is effective, and that, for purposes of determining any
       liability under the Securities Act, each such post-effective amendment
       shall be deemed to be a new registration statement relating to the
       securities offered therein, and the offering of such securities at that
       time shall be deemed to be the initial bona fide offering thereof;

    4.  insofar as indemnification for liabilities arising under the Securities
       Act may be permitted to directors, officers and controlling persons of
       the registrant pursuant to the foregoing provisions, or otherwise, the
       registrant has been advised that in the opinion of the Securities and
       Exchange Commission such indemnification is against public policy as
       expressed in the Securities Act and is, therefore, unenforceable. In the
       event that a claim for indemnification against such liabilities (other
       than the payment by the registrant of expenses incurred or paid by a
       director, officer or controlling person of the registrant in the
       successful defense of any action, suit or proceeding) is asserted by such
       director, officer or controlling person in connection with the securities
       being registered, the registrant will, unless in the opinion of its
       counsel the matter has been settled by controlling precedent, submit to a
       court of appropriate jurisdiction the question whether such
       indemnification by it is against public policy as expressed in the
       Securities Act and will be governed by the final adjudication of such
       issue;

    5.  to respond to requests for information that is incorporated by reference
       into the prospectus pursuant to Items 4, 10(b), 11 or 13 of this form,
       within one business day of receipt of such request, and to send the
       incorporated documents by first class mail or other equally prompt means.
       This includes information contained in documents filed subsequent to the
       effective date of the registration statement through the date of
       responding to the request; and

    6.  to supply by means of a post-effective amendment all information
       concerning a transaction, and the company being acquired involved
       therein, that was not the subject of and included in this registration
       statement when it became effective.

                                      II-3
<PAGE>
                                   SIGNATURES

    Pursuant to the requirements of the Securities Act of 1933, as amended,
Aspect Development, Inc. has duly caused this Registration Statement to be
signed on its behalf by the undersigned, thereunto duly authorized, in the City
of Mountain View, State of California, on April 11, 2000.

<TABLE>
<S>                                                    <C>  <C>
                                                       ASPECT DEVELOPMENT, INC.

                                                       By:  /s/ DAVID S. DURY
                                                            -----------------------------------------
                                                            David S. Dury
                                                            SENIOR VICE PRESIDENT, CHIEF FINANCIAL
                                                            OFFICER AND SECRETARY
</TABLE>

                               POWER OF ATTORNEY

    KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears
below constitutes and appoints Dr. Romesh T. Wadhwani and David S. Dury and each
or any one of them, his true and lawful attorney-in-fact and agent, with full
power of substitution and resubstitution, for him and in his name, place and
stead, in any and all capacities, to sign any and all amendments (including
post-effective amendments) to this Registration Statement, and to file the same,
with all exhibits thereto, and other documents in connection therewith, with the
Securities and Exchange Commission, granting unto said attorneys-in-fact and
agents, and each of them, full power and authority to do and perform each and
every act and thing requisite and necessary to be done in connection therewith,
as fully to all intents and purposes as he might or could do in person, hereby
ratifying and confirming all that said attorneys-in-fact and agents, or any of
them, or their or his substitutes or substitute, may lawfully do or cause to be
done by virtue hereof.

    Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed by the following persons in the
capacities and on the dates indicated.

<TABLE>
<CAPTION>
                      SIGNATURE                                   TITLE                    DATE
                      ---------                                   -----                    ----
<C>                                                    <S>                          <C>
               /s/ ROMESH T. WADHWANI
     -------------------------------------------       Chairman of the Board and      April 11, 2000
                 Romesh T. Wadhwani                      Chief Executive Officer

                 /s/ ROBERT L. EVANS
     -------------------------------------------       President, Chief Operating     April 11, 2000
                   Robert L. Evans                       Officer and Director

                                                       Senior Vice President,
                  /s/ DAVID S. DURY                      Chief Financial Officer
     -------------------------------------------         and Secretary                April 11, 2000
                    David S. Dury                        (PRINCIPAL FINANCIAL AND
                                                         ACCOUNTING OFFICER)
</TABLE>

                                      II-4
<PAGE>

<TABLE>
<CAPTION>
                      SIGNATURE                                   TITLE                    DATE
                      ---------                                   -----                    ----
<C>                                                    <S>                          <C>
                  /s/ DAVID PEFLEY
     -------------------------------------------       Vice President and             April 11, 2000
                    David Pefley                         Corporate Controller

                /s/ STEVEN B. GOLDBY
     -------------------------------------------       Director                       April 11, 2000
                  Steven B. Goldby

                  /s/ DENNIS SISCO
     -------------------------------------------       Director                       April 11, 2000
                    Dennis Sisco
</TABLE>

                                      II-5
<PAGE>
                                 EXHIBIT INDEX

<TABLE>
<CAPTION>
       EXHIBIT                                                                        SEQUENTIAL
       NUMBER           DESCRIPTION                                                   PAGE NUMBER
- ---------------------   ------------------------------------------------------------  -----------
<C>                     <S>                                                           <C>
         +2.1           Agreement and Plan of Reorganization between Aspect
                        Development, Inc., ASTA Merger Sub, Inc. and Transition
                        Analysis Component Technology, Inc., dated January 17, 2000.

         +2.2           Amendment No. 1 to Agreement and Plan of Reorganization
                        dated April 6, 2000.

        ++2.3           Voting Agreement.

          3.1(3)        Restated Certificate of Incorporation, as amended to date.

          3.2(1)        By-Laws.

          4.1(1)        Restated Rights Agreement, dated December 3, 1993.

          5.1           Opinion of Cooley Godward LLP regarding the validity of the
                        shares of Aspect Development, Inc. common stock to be
                        registered under this registration statement.

          8.1           Opinion of Cooley Godward LLP regarding certain United
                        States federal income tax consequences of the merger.

          8.2           Opinion of Morrison Cohen Singer & Weinstein LLP regarding
                        certain United States federal income tax consequences of the
                        merger.

        *10.1(1)        Amended and Restated 1992 Stock Option Plan and forms of
                        agreements thereunder.

        *10.2(1)        1996 Employee Stock Purchase Plan.

        *10.3(1)        1996 Outside Directors Stock Option Plan and forms of
                        agreement thereunder.

         10.4(1)        Sublease Agreement between Aspect Development, Inc. and
                        Insignia Solutions, Inc., dated December 9, 1995.

         10.5(1)        Agreement of Lease between Aspect Development, Inc. and
                        Mareld Company, Inc., dated June 2, 1994.

         10.6(1)        Agreement of Lease between Aspect Development India and M.S.
                        Janardhan Corporation, dated September 18, 1995.

         10.7(1)        Agreement of Lease between Aspect-DCM Pvt. Ltd. and the
                        co-owners of Leo Shopping Complex, dated February 10, 1994.

         21.1(4)        List of Subsidiaries.

         23.1           Consent of Arthur Andersen LLP, Independent Public
                        Accountants.

         23.2           Consent of Ernst & Young LLP, Independent Auditors.

         23.3           Consent of Ernst & Young LLP, Independent Auditors.

         23.4           Consent of Arthur Andersen LLP, Independent Public
                        Accountants.

         24.1           Power of Attorney. (See page II-4)

         99.1(2)        Rights Agreement dated as of October 7, 1998 among the
                        Company and U.S. Stock Transfer Corporation.

         99.2           Form of Proxy.
</TABLE>

- ------------------------

+   Filed as Annex A to the proxy statement/prospectus which forms a part of
    this Registration Statement.

                                      II-6
<PAGE>
++   To be filed by amendment.

*   Constitutes a management contract or compensatory plan required to be filed
    pursuant to Item 13(a) of Form 10-K.

(1) Incorporated by reference to identically numbered exhibit to Registrant's
    Registration Statement on Form SB-2 (file no. 333-3840-LA) filed on
    April 19, 1996.

(2) Incorporated by reference to Registrant's Current Report on Form 8-K filed
    October 7, 1998.

(3) Incorporated by reference to Registrant's Annual Report on Form 10-K/A filed
    on April 30, 1999.

(4) Incorporated by reference to Registrant's Annual Report on Form 10-K filed
    on March 30, 2000.

                                      II-7

<PAGE>
                                                                     Exhibit 5.1

April 11, 2000

                                                                  JAMES C. KITCH
                                               (650) 843-5027 [email protected]

Aspect Development, Inc.
1395 Charleston Road
Mountain View, California 94043

Ladies and Gentlemen:

         You have requested our opinion with respect to certain matters in
connection with the filing by Aspect Development Inc. (the "Company") of a
Registration Statement on Form S-4 (the "Registration Statement") with the
Securities and Exchange Commission covering the offering of 450,848 shares of
the Company's common stock, $.001 par value (the "Shares"), pursuant to that
certain Agreement and Plan of Reorganization, dated as of January 17, 2000,
between the Company, ASTA Merger Sub, Inc. and Transition Analysis Component
Technology, Inc. (the "Merger Agreement").

         In connection with this opinion, we have examined the Registration
Statement, the Company's Certificate of Incorporation and Bylaws, and such other
documents, records, certificates, memoranda and other instruments as we deem
necessary as a basis for this opinion. We have assumed the genuineness and
authenticity of all documents submitted to us as originals, the conformity to
originals of all documents submitted to us as copies thereof, and the due
execution and delivery of all documents where due execution and delivery are a
prerequisite to the effectiveness thereof.

         On the basis of the foregoing, and in reliance thereon, we are of the
opinion that when issued in accordance with the Merger Agreement the Shares will
be validly issued, fully paid, and nonassessable.

         We consent to the filing of this opinion as an exhibit to the
Registration Statement and to the reference to our firm under the caption "Legal
Matters" in the prospectus included in the Registration Statement.

         Very truly yours,

         Cooley Godward LLP


         /s/ James C. Kitch


<PAGE>
                                                                     Exhibit 8.1

[LETTERHEAD OF COOLEY GODWARD LLP]




_________________, 2000


Aspect Development, Inc.
1395 Charleston Road
Mountain View, CA  94043



Ladies and Gentlemen:

This opinion is being delivered to you pursuant to Section 6.5(d) of the
Agreement and Plan of Reorganization dated as of January 17, 2000 (the
"Reorganization Agreement") by and among Aspect Development, Inc., a Delaware
corporation ("Parent"), ASTA Merger Sub, Inc., a Delaware corporation and wholly
owned subsidiary of Parent ("Merger Sub"), and Transition Analysis Component
Technology, Inc., a Delaware corporation (the "Company").

Except as otherwise provided, capitalized terms used but not defined herein
shall have the meanings set forth in the Reorganization Agreement. All section
references, unless otherwise indicated, are to the Internal Revenue Code of
1986, as amended (the "Code").

We have acted as counsel to Parent and Merger Sub in connection with the Merger.
As such, and for the purpose of rendering this opinion, we have examined, and
are relying upon (without any independent investigation or review thereof) the
truth and accuracy, at all relevant times, of the statements, covenants,
representations and warranties contained in the following documents (including
all exhibits and schedules attached thereto):

         (a) the Reorganization Agreement;

         (b) those certain tax representation letters delivered to us by Parent,
Merger Sub and the Company containing certain representations of Parent, Merger
Sub and the Company (the "Tax Representation Letters"); and

         (c) such other instruments and documents related to the formation,
organization and operation of Parent, Merger Sub and the Company and related to
the consummation of the Merger and the other transactions contemplated by the
Reorganization Agreement as we have deemed necessary or appropriate.

In connection with rendering this opinion, we have assumed (without any
independent investigation or review thereof) that:

         (a) Original documents submitted to us (including signatures thereto)
are authentic, documents submitted to us as copies conform to the original
documents, and that all such

<PAGE>

Aspect Development, Inc.
March __, 2000
Page


documents have been (or will be by the Effective Time) duly and validly executed
and delivered where due execution and delivery are a prerequisite to the
effectiveness thereof;

         (b) All representations, warranties and statements made or agreed to by
Parent, Merger Sub and the Company, their managements, employees, officers,
directors and shareholders in connection with the Merger, including, but not
limited to, those set forth in the Reorganization Agreement (including the
exhibits thereto) and the Tax Representation Letters are true and accurate at
all relevant times;

         (c) All covenants contained in the Reorganization Agreement (including
exhibits thereto) and the Tax Representation Letters are performed without
waiver or breach of any material provision thereof;

         (d) The Merger will be reported by Parent and the Company on their
respective federal income tax returns in a manner consistent with the opinion
set forth below;

         (e) Any representation or statement made "to the best of knowledge" or
similarly qualified is correct without such qualification; and

         (f) The opinion dated __________, 2000 rendered by Morrison Cohen
Singer & Weinstein to the Company pursuant to Section 7.5 of the Reorganization
Agreement has been delivered and has not been withdrawn.

Based on our examination of the foregoing items and subject to the limitations,
qualifications, assumptions and caveats set forth herein, we are of the opinion
that, for federal income tax purposes, the Merger will be a reorganization
within the meaning of Section 368(a) of the Code.

In addition to your request for our opinion on this specific matter of federal
income tax law, you have asked us to review the discussion of federal income tax
matters contained in the Form S-4 Registration Statement. We have reviewed the
discussion entitled "Certain Federal Income Tax Considerations" contained in the
Form S-4 Registration Statement and believe that, insofar as it relates to
statements of law and legal conclusions is correct in all material respects.

This opinion does not address the various state, local or foreign tax
consequences that may result from the Merger or the other transactions
contemplated by the Reorganization Agreement. In addition, no opinion is
expressed as to any federal income tax consequence of the Merger or the other
transactions contemplated by the Reorganization Agreement except as specifically
set forth herein, and this opinion may not be relied upon except with respect to
the consequences specifically discussed herein. No opinion is expressed as to
the federal income tax treatment that may be relevant to a particular investor
in light of personal circumstances or to certain types of investors subject to
special treatment under the federal income tax laws (for example, life

<PAGE>

Aspect Development, Inc.
March __, 2000
Page Three


insurance companies, dealers in securities, taxpayers subject to the alternative
minimum tax, banks, tax-exempt organizations, non-United States persons, and
shareholders who acquired their shares of Company capital stock pursuant to the
exercise of options or otherwise as compensation or who hold their Company
capital stock as part of a straddle or risk reduction transaction).

No opinion is expressed as to any transaction other than the Merger as described
in the Reorganization Agreement, or as to any transaction whatsoever, including
the Merger, if all of the transactions described in the Reorganization Agreement
are not consummated in accordance with the terms of the Reorganization Agreement
and without waiver of any material provision thereof. To the extent that any of
the representations, warranties, statements and assumptions material to our
opinion and upon which we have relied are not accurate and complete in all
material respects at all relevant times, our opinion would be adversely affected
and should not be relied upon.

This opinion only represents our best judgment as to the federal income tax
consequences of the Merger and is not binding on the Internal Revenue Service or
any court of law, tribunal, administrative agency or other governmental body.
The conclusions are based on the Code, existing judicial decisions,
administrative regulations and published rulings. No assurance can be given that
future legislative, judicial or administrative changes or interpretations would
not adversely affect the accuracy of the conclusions stated herein.
Nevertheless, by rendering this opinion, we undertake no responsibility to
advise you of any new developments in the application or interpretation of the
federal income tax laws.

This opinion is being delivered pursuant to Section 5.8 of the Reorganization
Agreement for the purpose of inclusion as an exhibit to the Registration
Statement. It may not be relied upon or utilized for any other purpose or by any
person other than you and the shareholders of the Company and may not be made
available to any other person without our prior written consent.

Sincerely,

Cooley Godward LLP

Webb B. Morrow III

WBM:dp



<PAGE>

                                                                     Exhibit 8.2

            [LETTERHEAD OF MORRISON COHEN SINGER & WEINSTEIN, LLP]



                                                     April ___, 2000


Transition Analysis Component
   Technology, Inc.
22687 Old Canal Road
Yorba Linda, California 92887

Ladies and Gentlemen:

         This opinion is being delivered to you pursuant to Section 7.5 of the
Agreement and Plan of Reorganization dated as of January 17, 2000 (the
"Reorganization Agreement") by and among Aspect Development, Inc., a Delaware
corporation ("Parent"), ASTA Merger Sub Acquisition, Inc., a Delaware
corporation and wholly owned subsidiary of Parent ("Merger Sub"), and Transition
Analysis Component Technology, Inc., a Delaware corporation (the "Company").

         Except as otherwise provided, capitalized terms used but not defined
herein shall have the meanings set forth in the Reorganization Agreement. All
section references, unless otherwise indicated, are to the Internal Revenue Code
of 1986, as amended (the "Code").

         We have acted as counsel to the Company in connection with the Merger.
As such, and for the purpose of rendering this opinion, we have examined, and
are relying upon (without any independent investigation or review thereof) the
truth and accuracy, at all relevant times, of the statements, covenants,
representations and warranties contained in the following documents (including
all exhibits and schedules attached thereto):

         (a) the Reorganization Agreement;

         (b) those certain tax representation letters delivered to us by Parent,
Merger Sub and the Company containing certain representations of Parent, Merger
Sub and the Company (the "Tax Representation Letters"); and

         (c) such other instruments and documents related to the formation,
organization and operation of Parent, Merger Sub and the Company and related to
the consummation of the Merger and the other transactions contemplated by the
Reorganization Agreement as we have deemed necessary or appropriate.


<PAGE>

         In connection with rendering this opinion, we have assumed (without any
independent investigation or review thereof) that:

               (a) Original documents submitted to us (including signatures
thereto) are authentic, documents submitted to us as copies conform to the
original documents, and that all such documents have been (or will be, by the
Effective Time) duly and validly executed and delivered where due execution and
delivery are a prerequisite to the effectiveness thereof,

               (b) All representations, warranties and statements made or agreed
to by Parent, Merger Sub and the Company, their management, employees, officers,
directors and shareholders in connection with the Merger, including, but not
limited to, those set forth in the Reorganization Agreement (including the
exhibits thereto) and the Tax Representation Letters are true and accurate at
all relevant times;

               (c) All covenants contained in the Reorganization Agreement
(including exhibits thereto) and the Tax Representation Letters are performed
without waiver or breach of any material provision thereof;

               (d) The Merger will be reported by Parent and the Company on
their respective federal income tax returns in a manner consistent with the
opinion set forth below;

               (e) Any representation or statement made "to the best of
knowledge" or similarly qualified is correct without such qualification; and

               (f) The opinion dated April ___, 2000 rendered by Cooley Godward,
LLP to the Parent and Merger Sub pursuant to Section 5.8 of the Reorganization
Agreement has been delivered and has not been withdrawn.

         Based on our examination of the foregoing items and subject to the
limitations, qualifications, assumptions and caveats set forth herein, we are of
the opinion that, for federal income tax purposes, the Merger will constitute a
"reorganization" within the meaning of Section 368(a) of the Code.

         In addition to your request for our opinion on this specific matter of
federal income tax law, you have asked us to review the discussion of federal
income tax matters contained in the Form S-4 Registration Statement. We have
reviewed the discussion entitled "Certain Federal Income Tax Considerations"
contained in the Form S-4 Registration Statement and believe that, insofar as it
relates to statements of law and legal conclusions, it is correct in all
material respects.

         This opinion does not address the various state, local or foreign tax
consequences that may result from the Merger or the other transactions
contemplated by the Reorganization Agreement. In addition, no opinion is
expressed as to any federal income tax consequence of the Merger or the other
transactions contemplated by the Reorganization Agreement except as


                                       2
<PAGE>

specifically set forth herein, and this opinion may not be relied upon except
with respect to the consequences specifically discussed herein. No opinion is
expressed as to the federal income tax treatment that may be relevant to a
particular investor in light of personal circumstances or to certain types of
investors subject to special treatment under the federal income tax laws (for
example, life insurance companies, dealers in securities, taxpayers subject to
the alternative minimum tax, banks, tax-exempt organizations, non-United States
persons, and shareholders who acquired their shares of Company capital stock
pursuant to the exercise of options or otherwise as compensation or who hold
their Company capital stock as part of a straddle or risk reduction
transaction).

         No opinion is expressed as to any transaction other than the Merger as
described in the Reorganization Agreement, or as to any transaction whatsoever,
including the Merger, if all of the transactions described in the Reorganization
Agreement are not consummated in accordance with the terms of the Reorganization
Agreement and without waiver of any material provision thereof. To the extent
that any of the representations, warranties, statements and assumptions material
to our opinion and upon which we have relied are not accurate and complete in
all material respects at all relevant times, our opinion would be adversely
affected and should not be relied upon.

         This opinion only represents our best judgment as to the federal income
tax consequences of the Merger and is not binding on the Internal Revenue
Service or any court of law, tribunal, administrative agency or other
governmental body. The conclusions are based on the Code, existing judicial
decisions, administrative regulations and published rulings. No assurance can be
given that future legislative, judicial or administrative changes or
interpretations would not adversely affect the accuracy of the conclusions
stated herein. Nevertheless, by rendering this opinion, we undertake no
responsibility to advise you of any new developments in the application or
interpretation of the federal income tax laws.

         This opinion is being delivered pursuant to Section 5.8 of the
Reorganization Agreement for the purpose of inclusion as an exhibit to the
Registration Statement. It may not be relied upon or utilized for any other
purpose or by any person other than you and the shareholders of the Company and
may not be made available to any other person without our prior written consent.

                                     Sincerely,

                                     MORRISON COHEN SINGER
                                       & WEINSTEIN, LLP


                                     By:
                                         ---------------------------------------
                                            A Partner


                                       3

<PAGE>
                                                                    EXHIBIT 23.1

                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

    As independent public accountants, we hereby consent to the use of our
report, and to all references to our Firm, included in or made a part of this
registration statement.

                                          /s/ ARTHUR ANDERSEN LLP

San Jose, California
April 10, 2000

<PAGE>
                                                                    EXHIBIT 23.2

                        CONSENT OF INDEPENDENT AUDITORS

We consent to the reference to our firm under the caption "Experts" and to the
use of our report dated September 24, 1999, included in the Proxy Statement of
Transition Analysis Component Technology, Inc. that is made a part of the
Registration Statement (Form S-4) and Prospectus of Aspect Development, Inc. for
the registration of shares of its common stock.

                                      /s/ ERNST & YOUNG LLP

White Plains, New York
April 11, 2000

<PAGE>
                                                                    EXHIBIT 23.3

               CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS

We consent to the reference to our firm under the caption "Experts" in the
Registration Statement (Form S-4) and related proxy statement/prospectus of
Aspect Development, Inc. for the registration
of shares of its common stock and to the incorporation by reference therein of
our report dated
January 26, 1998, except with respect to paragraph 3 of Note 4, as to which the
date is August 14, 1998
and paragraph 4 of Note 4, as to which the date is March 10, 2000, with respect
to the consolidated financial statements of Aspect Development, Inc. included in
its Annual Report (Form 10-K) for the year ended December 31, 1999, filed with
the Securities and Exchange Commission.

                                      ERNST & YOUNG LLP

Palo Alto, California
April 11, 2000

<PAGE>
                                                                    EXHIBIT 23.4

                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

As independent public accountants, we hereby consent to the use of our report
included in or made a part of this registration statement.

                                          /s/ ARTHUR ANDERSEN LLP

Denver, Colorado
April 10, 2000

<PAGE>
                                 FORM OF PROXY

                 TRANSITION ANALYSIS COMPONENT TECHNOLOGY, INC.
                 PROXY SOLICITED BY THE BOARD OF DIRECTORS FOR
        SPECIAL MEETING OF SHAREHOLDERS OF TRANSITION ANALYSIS COMPONENT
                                TECHNOLOGY, INC.

    The undersigned acknowledges receipt of a Notice of Special Meeting and of
an accompanying Proxy Statement, and hereby appoints Deborah J. Schrader and
Michelle Mastroplo, and either of them, proxies with several powers of
substitution, to vote on behalf of the undersigned at the Special Meeting of
Shareholders of TRANSITION ANALYSIS COMPONENT TECHNOLOGY, INC. (the "COMPANY"),
to be held on             , 2000 or at any adjournment thereof, as indicated
upon the following matters as described in the Notice of Meeting and
accompanying Proxy Statement:

    1. To approve the merger of the Company into Asta Merger Sub, Inc., a wholly
owned subsidiary of Aspect Development, Inc., under and pursuant to the
Agreement of Reorganization dated January 17, 2000, as amended.

           / /  APPROVE          / /  DISAPPROVE          / /  ABSTAIN

    2. Upon any other business that may properly come before the meeting or any
adjournment thereof according to the number of votes and as fully as the
undersigned would be entitled to vote if personally present, hereby revoking any
prior proxy or proxies. If more than one of the above-named proxies shall be
present in person or by substitute, both of the proxies so present and voting
shall have and either may exercise all the powers hereby granted.
<PAGE>
Continued from other side

    Said proxies will withhold the vote on the approval of the merger if so
instructed under Item 1.

IF NO INSTRUCTION IS INDICATED, SAID PROXIES WILL VOTE IN FAVOR OF THE MERGER
REFERENCED IN PROPOSAL 1 AND WILL USE THEIR DISCRETION WITH RESPECT TO ANY
MATTERS REFERRED TO IN ITEM 2.

                                         Dated: __________________________, 2000
                                                Please Date

                                         Signature(s):
                                         _______________________________________
                                      (Please sign under name exactly as it
                                      appears on stock certificate)

/ / Check here if you plan
  to attend the meeting


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