DIGITAL SYSTEMS INTERNATIONAL INC
8-K, 1996-10-18
TELEPHONE & TELEGRAPH APPARATUS
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<PAGE>   1
                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549

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


                                    FORM 8-K

                                 CURRENT REPORT



                     PURSUANT TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934




                                October 14, 1996
                                 Date of Report
                        (Date of earliest event reported)




                               DIGITAL SYSTEMS INTERNATIONAL, INC.
                     (Exact name of registrant as specified in its charter)

     Washington                       0-18511                    91-1273645
   (State or other             (Commission File No.)           (IRS Employer
   jurisdiction of                                          Identification No.)
   incorporation)

                             6464 185th Avenue N.E.
                            Redmond, Washington 98052
          (Address of principal executive offices, including zip code)

                                 (206) 881-7544
              (Registrant's telephone number, including area code)

                                  Page 1 of 6
                        Exhibit Index appears on page 6

<PAGE>   2
 ITEM 5.       OTHER EVENTS

         THE MERGER AGREEMENT WITH VIEWSTAR CORPORATION

         On October 14, 1996, Digital Systems International, Inc. ("Digital")
executed an Agreement and Plan of Merger, dated as of October 14, 1996 (the
"Merger Agreement"), by and among Digital, ViewStar Corporation, a California
Corporation ("ViewStar"), and Vision Merger Corporation, a Washington
corporation and a wholly-owned subsidiary of Digital ("Merger Sub"), providing
for the merger of Merger Sub into ViewStar, with ViewStar as the surviving
corporation (the "Merger"). The parties intend for the Merger to be accounted
for as a pooling-of-interests and to qualify as a tax-free reorganization.

         At the time of effectiveness of the Merger (the "Effective Time"), each
issued and outstanding share of common stock, par value $.001 per share of
ViewStar (the "ViewStar Common Stock"), will be converted into the right to
receive .693 shares (the "Exchange Ratio") of common stock, par value $.01 per
share, of Digital (the "Digital Common Shares"), and each issued and outstanding
share of preferred stock, par value $.001 per share, of ViewStar (the "ViewStar
Preferred Stock" and, together with the ViewStar Common Stock, the "ViewStar
Stock") will be converted into a number of Digital Common Shares equal to the
Exchange Ratio times the number of shares of ViewStar Common Stock into which
such ViewStar Preferred Stock is convertible (based upon a conversion ratio
of one share of ViewStar Common Stock for 3.5 shares of ViewStar Preferred
Stock) immediately prior to the Effective Time. In addition, each option to
purchase shares of ViewStar Stock that is outstanding at the Effective
Time of the Merger will be converted into an option to purchase a number of
Digital Common Shares equal to the product of the Exchange Ratio and the
number of shares of ViewStar Common Stock, subject to such option. Each
outstanding warrant to purchase shares of ViewStar Stock (other than a 
warrant held by Comdisco, Inc. that will convert into a warrant to purchase
Digital Common Shares) will terminate if not exercised prior to the Effective
Time. Based on the capitalization of Digital and ViewStar as of October 14,
1996, and the Exchange Ratio, as a result of the Merger the shareholders of
ViewStar immediately prior to the Effective Time (the "ViewStar Shareholders")
will own approximately 27.5% of the outstanding Digital Common Shares (the
"Share Consideration") immediately following consummation of the Merger
(including the Holdback Shares described below, excluding Digital Common
Shares owned by ViewStar Shareholders prior to the Merger, if any, and assuming
exercise of outstanding warrants and no exercise of outstanding options).

         Pursuant to the Merger Agreement, for up to six months following the
Closing, and subject to certain other limitations, the Share Consideration may
be reduced by a number of Digital Common Shares equal in value to certain losses
in excess of $350,000 that may be suffered by Digital due to certain breaches by
ViewStar of its representations and warranties or failure by ViewStar to perform
its obligations under the Merger Agreement. Digital Common Shares representing
10% of the Share Consideration (the "Holdback Shares") will be retained by
Digital in order to effect any necessary reduction in the Share Consideration.


                                                                          Page 2
<PAGE>   3
         The Merger is subject to approval by Digital's shareholders of the
issuance of Digital Common Shares pursuant to the Merger Agreement (the
"Issuance") at a special meeting expected to be held in December 1996, and of
the holders of a majority of the ViewStar Common Stock outstanding and the
holders of a majority of the ViewStar Preferred Stock outstanding. The parties
expect that the closing of the transaction will occur on or before December 31,
1996.

         The Merger also is subject to customary closing conditions, including,
without limitation, the making of all necessary governmental filings and the
effectiveness of a registration statement to be filed with the Securities and
Exchange Commission with respect to the Digital Common Shares issuable in the
Merger. Under certain circumstances, either Digital or ViewStar may be required
to pay a termination fee and to reimburse the other party for its expenses if
the Merger Agreement is terminated.

         The Merger Agreement provides that Kamran Kheirolomoom, President and
Chief Executive Officer of ViewStar, and Umang Gupta, a director of ViewStar,
will be appointed to Digital's Board of Directors. Digital also has entered into
employment agreements with certain of ViewStar's executive officers.

         On October 14, 1996, concurrently with the signing of the Merger
Agreement, Digital, certain affiliates of Digital and ViewStar entered into an
agreement (the "Shareholders Agreement") pursuant to which, among other things,
each of the Digital affiliates has agreed to vote for approval of the Issuance
and each of the ViewStar affiliates has agreed to approve the Merger
Agreement. As of October 14, 1996, the Digital affiliates had the power to
vote shares representing approximately 1.6% of the voting power of the
Digital Common Shares, and the ViewStar affiliates had the power to vote
shares representing approximately 72.4% of the voting power of the ViewStar
Common Stock and approximately 94.9% of the voting power of the ViewStar
Preferred Stock.

         Prior to negotiation of the Merger Agreement, Digital and ViewStar
entered into a Joint Marketing and Product Development Agreement, dated as of
September 20, 1996, (the "Alliance Agreement") pursuant to which the parties
agreed to begin immediately to implement a product development strategy for the
joint marketing of Digital's and ViewStar's products. The Alliance Agreement
calls for joint marketing and product development efforts to be undertaken in
three phases. Digital and ViewStar also entered into a Loan Agreement, dated
September 20, 1996, pursuant to which Digital loaned ViewStar $4,000,000 to
finance its working capital needs, including ViewStar's costs associated with 
the joint marketing and product development efforts of Digital and ViewStar.

         The Merger Agreement, Shareholders Agreement, Alliance Agreement, Loan
Agreement (the "Agreements") and a joint press release issued by the parties to
announce the Merger are filed as exhibits to this report and are incorporated
herein by reference. 


                                                                          Page 3
<PAGE>   4
The descriptions of the Agreements herein do not purport to be complete and are
qualified in their entirety by the provisions of the Agreements.

         The Digital Common Shares are quoted on the NASDAQ National Market
System under the trading symbol "DGTL."

ITEM 7.       FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS

         (c)      Exhibits
<TABLE>
<CAPTION>
         Exhibit Number        Description                                             Page
         --------------        -----------                                             ----
<S>                            <C>                                                    <C>         
         2.1                   Agreement and Plan of Merger among Digital
                               Systems International, Inc., ViewStar Corporation
                               and Vision Merger Corporation, dated as of
                               October 14, 1996.

         10.1                  Shareholders Agreement among Digital Systems
                               International, Inc., certain directors of Digital
                               Systems International, Inc. and certain
                               shareholders of ViewStar Corporation, dated as of
                               October 14, 1996.

         10.2                  Joint Marketing and Product Development Agreement
                               between Digital Systems International, Inc. and
                               ViewStar Corporation, dated September 20, 1996.

         10.3                  Loan Agreement between Digital Systems
                               International, Inc. and ViewStar Corporation,
                               dated September 20, 1996.

         99.1                  Press Release issued October 14, 1996.
</TABLE>
- ---------------


                                                                          Page 4
<PAGE>   5
                                    SIGNATURE

         Pursuant to the requirements of the Securities Exchange Act of 1934,
the registrant has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.

                             DIGITAL SYSTEMS INTERNATIONAL, INC.


Dated:  October 14, 1996

                             By
                               ------------------------------------------------
                               John J. Flavio, Senior Vice President
                                 and Chief Financial Officer

                                                                          Page 5
<PAGE>   6
                                  EXHIBIT INDEX
<TABLE>
<CAPTION>
         Exhibit Number         Description                                             Page
         --------------         -----------                                             ----
<S>                             <C>                                                     <C>                                      
         2.1                    Agreement and Plan of Merger among Digital
                                Systems International, Inc., ViewStar Corporation
                                and Vision Merger Corporation, dated as of
                                October 14, 1996.

         10.1                   Shareholders Agreement among Digital Systems
                                International, Inc., certain directors of Digital
                                Systems International, Inc. and certain
                                shareholders of ViewStar Corporation, dated as of
                                October 14, 1996.

         10.2                   Joint Marketing and Product Development Agreement
                                between Digital Systems International, Inc. and
                                ViewStar Corporation, dated September 20, 1996.

         10.3                   Loan Agreement between Digital Systems
                                International, Inc. and ViewStar Corporation,
                                dated September 20, 1996.

         99.1                   Press Release issued October 14, 1996.
</TABLE>
- ---------------

                                                                          Page 6

<PAGE>   1
                                                                     EXHIBIT 2.1

                        AGREEMENT AND PLAN OF MERGER



                                      AMONG



                      DIGITAL SYSTEMS INTERNATIONAL, INC.,



                            VISION MERGER CORPORATION



                                       AND



                              VIEWSTAR CORPORATION



                                      AS OF

                                OCTOBER 14, 1996





<PAGE>   2
                                    CONTENTS



                                      -i-
<PAGE>   3
EXHIBIT INDEX
         Exhibit 1             Form of Restricted Stock Purchase Agreement
         Exhibit 5.16          Company Tax Matters Certificate
         Exhibit 6.16          Digital Tax Matters Certificate
         Exhibit 7.3           Shareholders Agreement
         Exhibit 8.2(e)        Form of Opinion of Counsel for the Company
         Exhibit 8.2(h)        List of Company Officers Executing Employment 
                               Agreements
         Exhibit 8.3(e)        Form of Opinion of Counsel for Digital


                                      -i-
<PAGE>   4
                          AGREEMENT AND PLAN OF MERGER

         AGREEMENT AND PLAN OF MERGER (this "Agreement"), dated as of October
14, 1996, among Digital Systems International, Inc., a Washington corporation
("Digital"), Vision Merger Corporation, a Washington corporation and a direct
wholly owned subsidiary of Digital ("Merger Sub"), and ViewStar Corporation, a
California corporation (the "Company").

                                    RECITALS

         WHEREAS, the Boards of Directors of Digital, Merger Sub and the Company
each have determined that it is in the best interests of their respective
shareholders for Merger Sub to merge with the Company upon the terms and subject
to the conditions of this Agreement;

         WHEREAS, for federal income tax purposes, it is intended that the
Merger shall qualify as a reorganization within the meaning of Section 368(a) of
the Code (as defined below);

         WHEREAS, it is intended that the Merger shall be recorded for
accounting purposes as a pooling of interests; and

         NOW, THEREFORE, in consideration of the mutual representations,
warranties, covenants and agreements set forth herein, Digital, the Company and
Merger Sub hereby agree as follows:

                                    ARTICLE I

                                   DEFINITIONS

         As used in this Agreement, the following terms shall have the
respective meanings set forth below:

         "AAA Rules":  As defined in Section 4.6.

         "Acquisition Proposal":  As defined in Section 7.2(a).

         "Affiliate":  As defined in Rule 12b-2 under the Exchange Act.

         "Alternative Transaction":  As defined in Section 11.1(c).

         "Authorization": Any consent, approval or authorization of, expiration
or termination of any waiting period requirement (including pursuant to the
Hart-Scott-
<PAGE>   5
Rodino Antitrust Improvements Act of 1976, as amended) by, or filing,
registration, qualification, declaration or designation with, any Governmental
Body.

         "CCC":  The California Corporations Code.

         "Certificates":  As defined in Section 4.3.

         "Closing":  The closing of the Merger.

         "Closing Consideration":  As defined in Section 4.2.

         "Closing Date":  The date on which the Closing occurs.

         "Code": The Internal Revenue Code of 1986, as amended, and all
regulations promulgated thereunder, as in effect from time to time.

         "Comdisco" and the "Comdisco Warrant":  As defined in Section 4.1(e).

         "Company":  ViewStar Corporation, a California corporation.

         "Company Affiliates":  As defined in Section 7.10.

         "Company Claim":  As defined in Section 7.8(a).

         "Company Common Stock": Common stock, par value $.001 per share, of the
Company.

         "Company Consent Solicitation":  As defined in Section 7.3(a).

         "Company Disclosure Statement": The disclosure statement dated the date
of this Agreement delivered by the Company to Digital.

         "Company Financial Statements":  As defined in Section 5.10.

         "Company Indemnitees":  As defined in Section 7.8(a).

         "Company Option Plans":  As defined in Section 4.1(d).

         "Company Preferred Stock": Series A Preferred Stock, par value $.01 per
share, of the Company.

         "Company Tax Matters Certificate":  As defined in Section 5.16.

         "Confidentiality Agreement": The letter agreement between the Company
and Digital dated September 19, 1996.
   

                                   -2-
<PAGE>   6
         "Designee":  As defined in Section 7.16.

         "Digital": Digital Systems International, Inc., a Washington
corporation.

         "Digital Acquisition Proposal":  As defined in Section 7.18.

         "Digital Claim Reserve Amount":  As defined in Section 4.2.5(c).

         "Digital Claims":  As defined in Section 4.2.1(c).

         "Digital Common Shares": Shares of common stock, par value $.01 per
share, of Digital.

         "Digital Disclosure Statement": The disclosure statement dated the date
of this Agreement delivered by Digital to the Company.

         "Digital Employee Stock Purchase Plan":  As defined in Section 6.4.

         "Digital Financial Statements": The financial statements included in
the Digital SEC Reports.

         "Digital Losses":  As defined in Section 4.2.1(a).

         "Digital Option Plans": The stock option plans for employees, officers
and directors of Digital identified in the Digital SEC Reports, together with
the Digital Stock Incentive Plan.

         "Digital SEC Reports":  As defined in Section 6.10.

         "Digital Shareholders Meeting":  As defined in Section 7.3(b).

         "Digital Stock Incentive Plan":  As defined in Section 4.1(d).

         "Digital Tax Matters Certificate":  As defined in Section 6.16.

         "DOL":  The United States Department of Labor.

         "Effective Time":  As defined in Section 2.2.

         "Employee Benefit Plan":  As defined in Section 5.7(a).

         "ERISA": The Employee Retirement Income Security Act of 1974, as
amended, and all regulations promulgated thereunder, as in effect from time to
time.

         "Exchange Act":  The Securities Exchange Act of 1934, as amended.


                                      -3-
<PAGE>   7
         "Exchange Agent":  As defined in Section 4.3.

         "Exchange Ratio":  As defined in Section 4.1(a).

         "Fees":  As defined in Section 11.1(e).

         "Governmental Body": Any federal, state, municipal, political
subdivision or other governmental department, commission, board, bureau, agency
or instrumentality, domestic or foreign.

         "Holdback Shares":  As defined in Section 4.2.

         "Holdback Termination Date": The date six months following the Closing
Date or such shorter period as may be required to ensure that the Merger may be
accounted for as a "pooling of interests."

         "Intellectual Property": All intellectual property rights, including,
but not limited to, patents, patent applications, trademarks, trademark
applications and registrations, service marks, service mark applications and
registrations, copyrights, licenses and customer lists, proprietary processes,
formulae, inventions, trade secrets, know-how, development tools and other
proprietary rights used by the Company and its Subsidiaries or Digital and its
Subsidiaries, as the case may be, pertaining to any product, software or service
manufactured, marketed, licensed or sold by the Company and its Subsidiaries or
Digital and its Subsidiaries, as the case may be, in the conduct of their
business or used, employed or exploited in the development, license, sale,
marketing, distribution or maintenance thereof, and all documentation and media
constituting, describing or relating to the above, including, but not limited
to, manuals, memoranda, know-how, notebooks, software, records and disclosures.

         "Intellectual Property Licenses": All license agreements or other
agreements which in any way affect the rights of the Company or of Digital to
any of their respective Intellectual Property.

         "IRS":  The U.S. Internal Revenue Service.

         "Issuance":  As defined in Section 7.3(b).

         "knowledge" (and any derivatives thereof): The actual knowledge of a
Person (or, in the case of a corporation, partnership or other entity, the
actual knowledge of its executive officers) after inquiry of the appropriate
employee charged with principal responsibility for the subject matter thereof,
and any further investigation that may be appropriate where the circumstances
would indicate the need for further investigation, but no information known by
any other employee, or any attorney, accountant or other 

   
                                       -4-
<PAGE>   8
representative, of such party shall be imputed to such party unless such
information would have been disclosed by such an investigation.

         "Merger": The merger of Merger Sub with and into the Company as
contemplated by Section 2.1.

         "Merger Documents":  As defined in Section 2.2.

         "Merger Sub": Vision Merger Corporation, a Washington corporation and a
direct wholly owned Subsidiary of Digital.

         "Nasdaq/NM":  The Nasdaq National Market.

         "Open Digital Claim":  As defined in Section 4.2.5(c).

         "Operative Documents": This Agreement (including all Exhibits hereto,
the Company Disclosure Statement and the Digital Disclosure Statement), the
Shareholders Agreement and any other documents the execution of which is
necessary in order to consummate the Merger.

         "Option":  As defined in Section 4.1(d).

         "Person": Any individual or corporation, company, partnership, trust,
incorporated or unincorporated association, joint venture or other entity of any
kind.

         "Personal Property":  As defined in Section 5.17(b).

         "Proxy Statement/Prospectus":  As defined in Section 7.4.

         "RCW":  The Revised Code of Washington.

         "Real Property":  As defined in Section 5.17(a).

         "Replacement Option":  As defined in Section 4.1(d).

         "Representative Reimbursement":  As defined in Section 4.2.7.

         "Respective Representatives":  As defined in Section 7.7.

         "Response Period":  As defined in Section 4.2.5(b).

         "Restricted Stock": Shares of Company Common Stock issued as restricted
stock pursuant to the form of Restricted Stock Purchase Agreement attached
hereto as Exhibit 1.

                                      -5-
<PAGE>   9
         "S-1 Registration Statement": The registration statement on Form S-1,
Registration Number 333-09573, as amended, filed by the Company with the SEC
under the Securities Act to effect an initial public offering of the Company
Common Stock.

         "S-3 Registration Statement":  As defined in Section 7.5.

         "S-4 Registration Statement":  As defined in Section 7.4.

         "SEC":  The Securities and Exchange Commission.

         "Securities Act":  The Securities Act of 1933, as amended.

         "Share Consideration":  As defined in Section 4.1(b).

         "Shareholder Representative":  As defined in Section 4.2.4(a).

         "Shareholders": The shareholders of the Company immediately prior to
the Effective Time.

         "Shareholders Agreement":  As defined in Section 7.3(a).

         "Shares": Collectively, the shares of Company Common Stock and Company
Preferred Stock.

         "Software Products":  As defined in Section 5.9(b).

         "Subsidiary": As to any Person, any other Person of which at least 50%
of the equity or voting interests are owned, directly or indirectly, by such
first Person.

         "Superior Proposal":  As defined in Section 7.2(a).

         "Surviving Corporation":  The surviving corporation in the Merger.

         "Tax Returns": All tax returns, information returns and reports for
Taxes required to be filed with any Governmental Body.

         "Taxes": All taxes, charges, fees, levies or other assessments,
including, but not limited to, income, excise, gross receipts, property, sales,
use, ad valorem, transfer, franchise, profits, license, withholding, payroll,
employment, severance, stamp, occupation, windfall profits, social security and
unemployment or other taxes imposed by the United States or any agency or
instrumentality thereof, any state, county, local or foreign government, or any
agency or instrumentality thereof, and any 

   
                                   -6-
<PAGE>   10
interest or fines, and any and all penalties or additions relating to such
taxes, charges, fees, levies or other assessments.

         "Third Party":  As defined in Section 11.1(c).

         "Threshold":  As defined in Section 4.2.1(b).

         "Warrant":  As defined in Section 4.1(e).

         "WBCA":  The Washington Business Corporation Act.

                                   ARTICLE II

                       THE MERGER; EFFECTIVE TIME; CLOSING

2.1      THE MERGER

         Upon the terms and subject to the conditions of this Agreement, at the
Effective Time, Merger Sub shall be merged with and into the Company in
accordance with the provisions of the WBCA and the CCC and with the effects
provided in RCW 23B.11.060 and CCC Section 1107. The separate corporate
existence of Merger Sub shall thereupon cease, and the Company shall be the
Surviving Corporation and shall be governed by the laws of the state of
California. Notwithstanding the foregoing, at any time prior to the Closing
Date, Digital may elect to have Merger Sub be the Surviving Corporation so long
as such action does not result in the inability to satisfy any of the conditions
set forth in Article VIII.

2.2      EFFECTIVE TIME

         As soon as practicable following satisfaction or waiver of the
conditions set forth in Article VIII, the parties shall file with the
appropriate Governmental Bodies all documents (executed in accordance with the
relevant provisions of the WBCA and the CCC) required to be filed under the WBCA
and the CCC to consummate the Merger (the "Merger Documents"). The Merger shall
become effective on the date and at the time (the "Effective Time") that the
Merger Documents have been accepted for filing by the appropriate Governmental
Bodies (or such later date and time as may be specified in the Merger
Documents), which shall be the Closing Date or as soon as practicable
thereafter.

2.3      CLOSING

         Subject to the fulfillment or waiver of the conditions set forth in
Article VIII, the Closing shall take place (a) at the offices of Perkins Coie,
1201 Third Avenue, 

                                      -7-
<PAGE>   11
Seattle, Washington, at 10 a.m. within one business day of the date of receipt
of the last of the approvals required by Sections 8.1(a) and (b) or (b) at such
other place and/or time and/or on such other date as Digital and the Company may
agree or as may be necessary to permit the fulfillment or waiver of the
conditions set forth in Article VIII.

                                   ARTICLE III

                                 TERMS OF MERGER

3.1      ARTICLES OF INCORPORATION

         The Articles of Incorporation of the Company in effect immediately
prior to the Effective Time shall be the Articles of Incorporation of the
Surviving Corporation, until duly amended in accordance with the terms thereof
and of the CCC.

3.2      BYLAWS

         The Bylaws of the Company in effect at the Effective Time shall be the
Bylaws of the Surviving Corporation, until duly amended in accordance with the
terms thereof, of the Articles of Incorporation of the Surviving Corporation and
of the CCC.

3.3      DIRECTORS

         The directors of Merger Sub at the Effective Time shall, from and after
the Effective Time, be the directors of the Surviving Corporation until their
respective successors have been duly elected or appointed and qualified or until
their earlier death, resignation or removal in accordance with the Surviving
Corporation's Articles of Incorporation and Bylaws.

3.4      OFFICERS

         The officers of Merger Sub at the Effective Time shall, from and after
the Effective Time, be the officers of the Surviving Corporation until their
respective successors have been duly elected or appointed and qualified or until
their earlier death, resignation or removal in accordance with the Surviving
Corporation's Articles of Incorporation and Bylaws.


                                      -8-
<PAGE>   12
                                   ARTICLE IV

                       MERGER CONSIDERATION; CONVERSION OR
                      CANCELLATION OF SHARES IN THE MERGER

4.1      SHARE CONSIDERATION; CONVERSION OR CANCELLATION OF SHARES IN THE MERGER

         Subject to the provisions of this Article IV, at the Effective Time, by
virtue of the Merger and without any action by holders thereof, the shares of
the capital stock of the constituent corporations shall be converted as follows:

         (a) Other than Shares as to which dissenters' rights of appraisal have
been exercised, each share of Company Common Stock issued and outstanding
immediately prior to the Effective Time shall be converted into 0.693 Digital
Common Shares (the "Exchange Ratio") and each share of Company Preferred Stock
issued and outstanding immediately prior to the Effective Time shall be
converted into a number of Digital Common Shares equal to the product of the
Exchange Ratio times the number of shares of Company Common Stock into which
such Company Preferred Stock is convertible immediately prior to the Effective
Time. If, prior to the Effective Time, Digital should split or combine the
Digital Common Shares, or pay a stock dividend or other stock distribution in
Digital Common Shares, or otherwise change the Digital Common Shares into any
other securities, or make any other dividend or distribution on the Digital
Common Shares, then the Exchange Ratio will be appropriately adjusted to reflect
such split, combination, dividend or other distribution or change.

         (b) All Shares converted into Digital Common Shares pursuant to this
Section 4.1 shall cease to be outstanding, shall be canceled and retired and
shall cease to exist, and each holder of a certificate representing any such
Shares shall thereafter cease to have any rights as Company Shareholders with
respect to such Shares, except the right to receive for each of the Shares, upon
the surrender of such certificate in accordance with Section 4.3, and subject to
Section 4.2, the amount of Digital Common Shares specified above (the "Share
Consideration") and cash in lieu of fractional Digital Common Shares as
contemplated by Section 4.4.

         (c) Each share of common stock, par value $0.01 per share, of Merger
Sub issued and outstanding immediately prior to the Effective Time shall
evidence the same number of shares of common stock of the Surviving Corporation.

         (d) At the Effective Time, each outstanding option to purchase Shares
(each, an "Option") issued pursuant to any of the Company's stock option plans
(the 

                                      -9-
<PAGE>   13
"Company Option Plans"), whether vested or unvested, shall convert into an
option (a "Replacement Option") to acquire, on the same terms and conditions,
including the vesting schedule, as were applicable under such replaced Option
prior to the Effective Time, the number of Digital Common Shares (rounded down
to the nearest whole number) equal to the product of the Exchange Ratio and the
number of Shares subject to such Option, at a price per share equal to the
aggregate exercise price for the Shares subject to such Option divided by the
number of full Digital Common Shares deemed to be purchasable pursuant to such
Replacement Option; provided, however, that in no event shall the terms of any
Replacement Option give the employee additional benefits that he or she did not
have under an original Option that is described in Section 421(a) of the Code.
Following the Effective Time, upon surrender of the outstanding Options, Digital
shall deliver to holders of Options appropriate option agreements representing
the Replacement Options.

         Digital shall submit to its shareholders at the Digital Shareholders
Meeting a proposal to adopt a new stock option plan (the "Digital Stock
Incentive Plan") with a sufficient number of Shares reserved thereunder to
permit the issuance of the Replacement Options. Digital shall use all reasonable
efforts to file on or prior to the Closing Date, and maintain the effectiveness
of, a registration statement or registration statements on Form S-8 with respect
to Digital Common Shares subject to such Replacement Options (and maintain the
current status of the prospectus or prospectuses contained therein) for so long
as such Replacement Options remain outstanding. In the event approval of the
Digital Stock Incentive Plan is not obtained at the Digital Shareholders
Meeting, each Option shall be assumed by Digital and deemed to constitute a
Replacement Option.

         (e) On or before the Closing Date, each holder, other than Comdisco,
Inc. ("Comdisco") of an outstanding warrant to purchase Shares (each, a
"Warrant") shall have exercised such Warrant for Shares in accordance with its
terms. Warrants that have not been exercised as of the Effective Time shall
terminate in accordance with their respective terms; provided, however, that if,
prior to the Closing Date, Comdisco shall not have exercised its Warrant dated
May 31, 1996, to purchase 42,857 shares of Company Preferred Stock at a per
share price of $0.70 (the "Comdisco Warrant"), then Comdisco and Digital shall
enter into a written agreement providing that the Comdisco Warrant shall be
replaced by a warrant to acquire, on the same terms and conditions as were
applicable under the Comdisco Warrant, 8,486 Digital Common Shares at a per
share price of $3.53.

         (f) Each share of Restricted Stock outstanding at the Effective Time
shall convert into 0.693 Digital Common Shares in accordance with Section 4.1(a)
and 

                                      -10-
<PAGE>   14
shall remain subject to the same terms and conditions, including the vesting
schedule, as were applicable to such Restricted Stock prior to the Effective
Time.

4.2       CLOSING CONSIDERATION; HOLDBACK

         Each Shareholder (other than Shareholders exercising dissenters'
rights) will receive, upon surrender of such Shareholder's Certificates in
accordance with Section 4.3, a number (rounded down to the nearest whole number)
of Digital Common Shares equal to 90% of the Share Consideration to which such
Shareholder shall be entitled (the "Closing Consideration"). The remaining 10%
of the Share Consideration (together with any dividends or distributions accrued
or made thereon after the Effective Time and any other securities or property
which may be issued after the Effective Time in exchange for such shares in any
merger or recapitalization or similar transaction involving Digital, the
"Holdback Shares") will be held by Digital in order to effect any reduction in
the Share Consideration pursuant to the provisions of this Section 4.2. On the
Holdback Termination Date, except as otherwise specified in this Section 4.2,
Digital will issue certificates to each Shareholder for such Shareholder's
Holdback Shares that have not been retransferred to Digital in accordance with
the provisions of this Section 4.2.

         4.2.1      PURCHASE PRICE REDUCTION

         (a) From and after the Effective Time, and subject to the provisions of
this Section 4.2, the Share Consideration shall be reduced by a number of
Digital Common Shares equal in value to the amount of any and all losses,
damages, debts, liabilities, obligations, judgments, orders, awards, writs,
injunctions, decrees, fines, penalties, taxes, costs or expenses (including but
not limited to any legal or accounting fees or expenses, other than those
incurred by Digital in connection with asserting a Digital Claim under this
Section 4.2) incurred by Digital or any of its officers, directors or Affiliates
("Digital Losses") arising out of or in connection with:

                  (i) any inaccuracy in any representation or warranty made by
the Company or a Company Affiliate in this Agreement or in any other Operative
Document or in any certificate delivered pursuant hereto or thereto, or

                 (ii) any failure by the Company or a Company Affiliate to
perform or comply, in whole or in part, with any covenant or agreement in this
Agreement or in any other Operative Document.

         (b) Notwithstanding the foregoing, the Share Consideration shall not be
reduced until the aggregate Digital Losses exceed $350,000 (the "Threshold");
provided, however, that once the aggregate Digital Losses exceed the Threshold,
the 


                                      -11-
<PAGE>   15
Share Consideration shall be reduced only by a number of Digital Common
Shares equal in value to the amount by which all Digital Losses exceed the
Threshold.

         (c) Prior to submitting any claim that the Share Consideration should
be reduced (a "Digital Claim"), Digital shall use reasonable efforts to
determine the amount, if any, by which the Digital Losses would be offset by
Digital's recovery of insurance proceeds and reduction of tax liabilities and to
provide the Shareholders notice of and a description of such determination. Any
adjustment to the Share Consideration under this Article IV shall be reduced to
the extent any Digital Losses specified in a Digital Claim are reduced by such a
recovery or reduction.

         (d) The Share Consideration shall not be reduced with respect to any
Digital Claims which are first asserted by Digital after the Holdback
Termination Date.

         4.2.2      CERTIFICATES

         Certificates representing the Holdback Shares shall be held by Digital,
subject to Digital's rights of retransfer under this Section 4.2, and will bear
a legend to that effect. The record or beneficial owners of Holdback Shares
shall execute and deliver such instruments as Digital may from time to time
reasonably request for the purpose of retransferring any Holdback Shares to
Digital or the Shareholder Representative.

         4.2.3      RELEASE OF HOLDBACK SHARES

         Digital shall hold the Holdback Shares in accordance with this
Agreement and shall transfer the Holdback Shares only as follows:

         (a) Holdback Shares shall be (i) retransferred to Digital, when and to
the extent authorized under this Section 4.2, to effect any reduction in the
Share Consideration resulting from Digital Claims under this Section 4.2, and
(ii) transferred to the Shareholder Representative in connection with
Representative Reimbursements in accordance with Section 4.2.7. Any Holdback
Shares to be retransferred to Digital or transferred to the Shareholder
Representative pursuant to this Section 4.2 shall be rounded to the nearest
whole share and shall be valued on the basis of the last reported sale price of
Digital Common Shares on the Nasdaq/NM (i) in the case of transfers to Digital,
on the Closing Date and (ii) in the case of a transfer to the Shareholder
Representative in accordance with Section 4.2.7, on the last business day
preceding such transfer.

         (b) On the Holdback Termination Date, the Holdback Shares (excluding
Holdback Shares retransferred to Digital or transferred to the Shareholder
Representative in accordance with paragraph (a) of this Section 4.2.3 or held in


                                      -12-
<PAGE>   16
reserve pending resolution of an Open Digital Claim) shall be released to the
Shareholders pro rata in accordance with their percentage ownership of the
Company immediately prior to the Effective Time; provided, however, that no
Holdback Shares shall be released to any Shareholder who has not previously
surrendered all of such Shareholder's Certificates in accordance with Section
4.3.

         (c) After the Holdback Termination Date, when a final determination is
made with respect to any Open Digital Claim, (i) the number of Holdback Shares
transferable to Digital as a result of such final determination shall be
transferred to Digital from the Digital Claim Reserve Amount for such Open
Digital Claim, (ii) Holdback Shares shall be transferred to the Shareholder
Representative in accordance with Section 4.2.7 for additional Representative
Reimbursements not in excess of the Holdback Shares remaining in the Digital
Claim Reserve Amount, and (iii) the Holdback Shares included in such Digital
Claim Reserve Amount remaining after the transfers in (i) and (ii) above shall
be released to the Shareholders pro rata in accordance with their percentage
ownership of the Company immediately prior to the Effective Time.

         4.2.4      SHAREHOLDER REPRESENTATIVE

         (a) In order to facilitate the administration of the Digital Claims
procedure set forth in Sections 4.2.5 and 4.2.6, promptly after the Closing
Date, the holders of a majority in interest of the Holdback Shares shall select
a Person (the "Shareholder Representative") to act for and on behalf of all
holders of the Holdback Shares with respect to all matters arising in connection
with this Section 4.2 including, without limitation, the power and authority, in
his or her sole discretion, to:

                  (i)   take any action contemplated to be taken by the
Shareholder Representative under this Section 4.2;

                  (ii)  negotiate, determine, defend and settle any dispute
which may arise under this Section 4.2; and

                  (iii) make, execute, acknowledge and deliver any releases,
assurances, receipts, requests, instructions, notices, agreements, certificates
and any other instruments, and to generally do any and all things and to take
any and all actions which may be requisite, proper or advisable in connection
with this Section 4.2.

         (b) The holders of a majority in interest of the Holdback Shares may
replace the Shareholder Representative at any time with a substitute Shareholder
Representative who shall have all the powers and responsibilities of the
Shareholder Representative set forth in this Section 4.2.


                                      -13-
<PAGE>   17
         (c) Neither the Shareholder Representative, nor any substitute
Shareholder Representative, shall be liable to any Person for any action taken
or any omission to act, in good faith, in connection with the Shareholder
Representative's responsibilities as Shareholder Representative.

         (d) Promptly following his or her selection, the Shareholder
Representative, or any substitute Shareholder Representative, shall provide
Digital with a written certification of his or her selection and of the address
for notices to such Shareholder Representative. Digital may thereafter deal
exclusively with the Shareholder Representative in connection with the Digital
Claims procedure in reliance on such certification. Whenever in connection with
the provisions of this Section 4.2 Digital shall receive any certificate or
other written correspondence from the Shareholder Representative, such
certificate or other written correspondence shall be full authorization to
Digital for any action taken or suffered in good faith by it under the
provisions of this Section 4.2 in reliance thereon.

         4.2.5      DIGITAL CLAIMS PROCEDURE

         The procedure for the retransfer to Digital of Holdback Shares to
reduce the Share Consideration under this Section 4.2 shall be as follows:

         (a) Subject to the limitation that written notice of any Digital Claim
must be given to the holders of the Holdback Shares not later than the Holdback
Termination Date, from time to time as Digital determines that the Share
Consideration must be reduced in accordance with Section 4.2.3, Digital may give
written notice of the Digital Claim to the Shareholder Representative describing
in such notice the nature of the Digital Claim, the amount thereof if then
ascertainable and, if not then ascertainable, the estimated maximum amount
thereof, and the provisions in this Agreement on which the Digital Claim is
based.

         (b) If Digital has not received written objection to a Digital Claim
from the Shareholder Representative within 30 days after notice of such Digital
Claim is delivered (the "Response Period"), the Digital Claim stated in such
notice shall be conclusively deemed to be approved by the holders of the
Holdback Shares, and Digital will be entitled to receive, and may take all
actions necessary to effect the retransfer to Digital of, a number of Holdback
Shares equal in value to the amount of such Digital Claim.

         (c) If within the Response Period Digital shall have received from the
Shareholder Representative a written objection to the Digital Claim specifying
the nature of and grounds for such objection, then such Digital Claim shall be
deemed to be an "Open Digital Claim," and Digital shall reserve a number of
Holdback Shares 


                                      -14-
<PAGE>   18
equal in value to the amount of such Open Digital Claim (the "Digital Claim
Reserve Amount").

         (d) The Holdback Shares reserved for any Open Digital Claim shall be
retransferred to Digital only in accordance with either (i) a mutual agreement
among Digital and the Shareholder Representative, which shall be memorialized in
writing, or (ii) a final and binding arbitration decision or court order
pertaining to the Open Digital Claim.

         4.2.6      THIRD PARTY CLAIMS

         (a) Digital shall notify the Shareholder Representative in writing
reasonably promptly after the assertion against Digital or any of its officers,
directors or Affiliates of any claim by a third party (a "Third Party Claim") in
respect of which Digital intends to base a Digital Claim. The failure or delay
so to notify the Shareholder Representative shall not be deemed to preclude the
Digital Claim except to the extent that the Shareholder Representative
demonstrates that his or her ability to defend or resolve such Third Party Claim
is adversely affected thereby.

         (b)      (i) Subject to the rights of or duties to any insurer or other
third party having potential liability therefor, the Shareholder Representative
shall have the right, upon written notice given to Digital within 30 days after
receipt of the notice from Digital of any Third Party Claim, to assume the
defense or handling of such Third Party Claim, at the sole expense of the
Shareholder Representative (which expense shall be eligible for a Representative
Reimbursement), in which case the provisions of paragraph (b)(ii) of this
Section 4.2.6 shall govern.

                  (ii) The Shareholder Representative shall select counsel
reasonably acceptable to Digital in connection with conducting the defense or
handling of such Third Party Claim, and the Shareholder Representative shall
defend or handle the same in consultation with Digital and shall keep Digital
timely apprised of the status of such Third Party Claim. The Shareholder
Representative shall not, without the prior written consent of Digital, agree to
a settlement of any Third Party Claim, unless (A) the settlement provides an
unconditional release and discharge of Digital (or its officers, directors or
Affiliates, as the case may be), and Digital (or its officers, directors or
Affiliates, as the case may be) is reasonably satisfied with such discharge and
release and (B) Digital shall not have reasonably objected to any such
settlement on the ground that the circumstances surrounding the settlement
would, or would be reasonably expected (so far as can be foreseen at the time)
to, result in an adverse impact on the business, properties, operations,
condition (financial or other) or prospects of Digital or the business conducted
by the Surviving Corporation. Digital shall cooperate with the Shareholder
Representative, and shall be entitled to 


                                      -15-
<PAGE>   19
participate in the defense or handling of such Third Party Claim with its own
counsel and at its own expense.

         (c)      (i) If the Shareholder Representative does not give written
notice to Digital within 30 days after receipt of the notice from Digital of any
Third Party Claim of the election by the Shareholder Representative to assume
the defense or handling of such Third Party Claim, the provisions of paragraph
(c)(ii) of this Section 4.2.6 shall govern.

                  (ii) Digital may select counsel in connection with conducting
the defense or handling of such Third Party Claim and defend or handle such
Third Party Claim in such manner as it may deem appropriate; provided, however,
that Digital shall keep the Shareholder Representative timely apprised of the
status of such Third Party Claim and shall not settle such Third Party Claim
without the prior written consent of the Shareholder Representative, which
consent shall not be unreasonably withheld. If Digital defends or handles such
Third Party Claim, the Shareholder Representative shall cooperate with Digital
and shall be entitled to participate in the defense or handling of such Third
Party Claim with its own counsel and at its own expense.

         (d) Digital may notify the Shareholder Representative of a Digital
Claim even though the amount thereof plus the amount of other Digital Claims
previously notified by Digital aggregate less than the Threshold.

         4.2.7      SHAREHOLDER REPRESENTATIVE'S EXPENSES

         The Shareholder Representative shall be entitled to submit to Digital
an affidavit certifying in reasonable detail as to costs or expenses, including
attorneys' fees, incurred by the Shareholder Representative in the satisfaction
of his or her responsibilities as Shareholder Representative. Digital shall
reimburse the Shareholder Representative for such costs and expenses, but only
to the extent of the value of the Holdback Shares (as established in accordance
with this Section 4.2), excluding Holdback Shares retransferred to Digital in
accordance with Section 4.2.3(a) or held in reserve pending resolution of any
Open Digital Claim (any such reimbursement, a "Representative Reimbursement"),
by transferring to the Shareholder Representative a number of Holdback Shares
with a value equal to the amount of such Representative Reimbursement.

         4.2.8      VOTING; DISPOSITION

         The Holdback Shares shall be held of record by the holders thereof, who
shall have the full right to vote the Holdback Shares on all matters coming
before the 


                                      -16-
<PAGE>   20
shareholders of Digital. The holders of the Holdback Shares shall not
sell or transfer to any third party any interest in the Holdback Shares prior to
any distribution of the Holdback Shares to such holders pursuant to Section
4.2.3(b) or (c).

         4.2.9      MERGER OR RECAPITALIZATION

         In the event of any merger, recapitalization or similar transaction
involving Digital prior to the time when all Holdback Shares have been
transferred or released in accordance with the terms of this Section 4.2, such
Holdback Shares shall be converted or exchanged in accordance with such
transaction in the same manner as other Digital Common Shares, and any
securities or property issued in conversion or exchange thereof shall then be
included within the definition of Holdback Shares and shall otherwise become
subject to this Agreement in lieu of such Digital Common Shares. If as a result
of any such transaction the shareholders of Digital immediately before the
transaction will not own in excess of 50% of the voting capital stock of Digital
immediately after the transaction, the Holdback Termination Date shall be deemed
to be the closing date of such transaction and the Holdback Shares shall be
retransferred to Digital or released to the holders of the Holdback Shares, as
the case may be, as provided herein.

         4.2.10     TAXATION OF DIVIDENDS

         For federal and state income tax purposes, any dividends or other
distributions with respect to the Holdback Shares shall be income of the holders
thereof.

4.3      SURRENDER OF CERTIFICATES

         Digital shall supply, or shall cause to be supplied, to or for the
account of a bank or trust company designated by Digital (the "Exchange Agent"),
in trust for the benefit of the holders of Shares (other than Shares for which
dissenters' rights have been exercised), for exchange in accordance with this
Section 4.3, through the Exchange Agent, certificates evidencing the Digital
Common Shares issuable pursuant to Section 4.1 in exchange for outstanding
Shares. Prior to the Closing, Digital shall instruct, and shall use reasonable
efforts to cause, the Exchange Agent to deliver, within three business days of
the Closing Date, to each holder of record of a certificate or certificates
which immediately prior to the Effective Time represented outstanding Shares
(the "Certificates") (a) a form of letter of transmittal (which shall specify
that delivery shall be effected, and risk of loss and title to the Certificates
shall pass, only upon proper delivery of the Certificates to the Exchange Agent)
and (b) instructions for use in effecting the surrender of the Certificates.
At or following the Closing, upon surrender of Certificates for cancellation to
the Exchange Agent, together with such letter of transmittal duly executed and
any other required 


                                      -17-
<PAGE>   21
documents, the holder of such Certificates shall receive for each of the Shares
represented by such Certificates the Closing Consideration and cash in lieu of
fractional Digital Common Shares as contemplated by Section 4.4, and the
Certificates so surrendered shall forthwith be canceled. Until surrendered, each
outstanding Certificate shall, upon and after the Effective Time, be deemed for
all purposes (other than to the extent provided in the following sentence) to
evidence only the right to receive, upon surrender of the Certificate, a
certificate or certificates representing the Closing Consideration and cash in
lieu of fractional Digital Common Shares. Unless and until such outstanding
Certificates are so surrendered, the holders thereof shall not be entitled to
receive any dividends or distributions of any kind payable to the holders of
record of Digital Common Shares. Upon the surrender of any such Certificate,
however, there shall be paid to the record holder of the certificate issued in
exchange therefor the aggregate amount of dividends and distributions, if any,
which theretofore became payable in respect of the Closing Consideration, and
such surrendered Certificate shall be duly canceled. No interest shall be
payable on or in respect of such deferred dividends or distributions until
surrender of such outstanding Certificates.

4.4      FRACTIONAL SHARES

         No fractional Digital Common Shares shall be issued in the Merger. In
lieu of any such fractional securities, each holder of Shares who would
otherwise have been entitled to a fraction of a Digital Common Share upon
surrender of Certificates for exchange pursuant to this Article IV will be paid
an amount in cash (without interest) equal to the last reported sale price of
one Digital Common Share on the Nasdaq/NM on the last business day prior to the
Closing Date, multiplied by such fraction.

4.5      TRANSFER OF SHARES AFTER THE EFFECTIVE TIME

         No transfers of Shares shall be made on the stock transfer books of the
Company after the close of business on the day prior to the date of the
Effective Time.

4.6      ARBITRATION

         Any controversies or claims arising out of or relating to this
Agreement shall be fully and finally settled by arbitration in accordance with
the Commercial Arbitration Rules of the American Arbitration Association (the
"AAA Rules"), conducted by one arbitrator either (a) mutually agreed upon by
Digital and the Company if prior to the Effective Time or Digital and the
Shareholder Representative if after the Effective Time or (b) chosen in
accordance with the AAA Rules, except that the parties thereto shall have any
right to discovery as would be permitted by the Federal Rules of Civil Procedure
for a period of 90 days following the commencement of such arbitration, 


                                      -18-
<PAGE>   22
and the arbitrator thereof shall resolve any dispute which arises in connection
with such discovery. The prevailing party shall be entitled to costs, expenses
and reasonable attorneys' fees, and judgment upon the award rendered by the
arbitrator may be entered in any court of competent jurisdiction identified in
Section 11.11. Arbitration proceedings shall be conducted in either Seattle,
Washington or San Francisco, California.

                                    ARTICLE V

                  REPRESENTATIONS AND WARRANTIES OF THE COMPANY

         The Company (which term for purposes of the provisions in this Article
V other than Sections 5.1, 5.2, 5.3 and 5.4 shall include all of the Company's
Subsidiaries) hereby represents and warrants to Digital and Merger Sub that,
except as set forth in the Company Disclosure Statement:

5.1      ORGANIZATION, ETC. OF THE COMPANY

         The Company is a corporation duly organized, validly existing and in
good standing under the laws of the state of California and has all requisite
corporate power and authority to own and operate its properties, to carry on its
business as now conducted , to enter into this Agreement and to carry out the
provisions of this Agreement and consummate the transactions contemplated
hereby. The Company is duly qualified and in good standing in each jurisdiction
in which the property owned, leased or operated by it or the nature of the
business conducted by it makes such qualification necessary and where the
failure to be so qualified has, or would be reasonably expected (so far as can
be foreseen at the time) to have, a material adverse effect on the business,
properties, operations, condition (financial or other) or, to the Company's
knowledge, the prospects of the Company. The Company has obtained from the
appropriate Governmental Bodies all approvals and licenses necessary for the
conduct of its business and operations as currently conducted, which approvals
and licenses are valid and remain in full force and effect, except where the
failure to have obtained such licenses or approvals or the failure of such
licenses and approvals to be valid and in full force and effect does not have,
and would not be reasonably expected (so far as can be foreseen at the time) to
have, a material adverse effect on the business, properties, operations,
condition (financial or other) or, to the Company's knowledge, the prospects of
the Company.

5.2      SUBSIDIARIES

         (a) The name, jurisdiction of incorporation and jurisdictions of
foreign qualification of each of the Company's Subsidiaries are as set forth in
the Company 


                                      -19-
<PAGE>   23
Disclosure Statement. Except as set forth in the Company Disclosure Statement,
the Company does not own, directly or indirectly, any ownership, equity, profits
or voting interest in, or otherwise control, any corporation, partnership, joint
venture or other entity, and has no agreement or commitment to purchase any such
interest. The Company owns 100% of the issued and outstanding shares of capital
stock, or other ownership interests, of each of the Company's Subsidiaries, free
and clear of any lien, encumbrance, preemptive right, right of first offer or
refusal, or other prior claim, and all the issued and outstanding shares of
capital stock, or other ownership interests, of the Company's Subsidiaries are
duly authorized and validly issued, fully paid and nonassessable, and were
issued and acquired in compliance with all applicable federal, state and foreign
securities and other laws.

         (b) Each Subsidiary of the Company (i) is a corporation or other legal
entity duly organized, validly existing and (if applicable) in good standing
under the laws of the jurisdiction of its organization and has the full power
and authority to own its properties and conduct its business and operations as
currently conducted, except where the failure to be duly organized, validly
existing and in good standing does not have, and would not be reasonably
expected (so far as can be foreseen at the time) to have, a material adverse
effect on the business, properties, operations, condition (financial or other)
or, to the Company's knowledge, the prospects of the Company and its
Subsidiaries taken as a whole, (ii) is duly qualified and in good standing in
each jurisdiction in which the property owned, leased or operated by it or the
nature of the business conducted by it makes such qualification necessary,
except where the failure to be so qualified does not have, and would not be
reasonably expected (so far as can be foreseen at the time) to have, a material
adverse effect on the business, properties, operations, condition (financial or
other) or, to the Company's knowledge, the prospects of the Company and its
Subsidiaries taken as a whole, and (iii) has obtained from the appropriate
Governmental Bodies all approvals and licenses necessary for the conduct of its
business and operations as currently conducted, which approvals and licenses are
valid and remain in full force and effect, except where the failure to have
obtained such approvals and licenses or the failure of such approvals and
licenses to be valid and in full force and effect does not have, and would not
be reasonably expected (so far as can be foreseen at the time) to have, a
material adverse effect on the business, properties, operations, condition
(financial or other) or, to the Company's knowledge, the prospects of the
Company and its Subsidiaries taken as a whole.

5.3      AGREEMENT

         This Agreement and the consummation of the transactions contemplated
hereby have been approved by the Company's Board of Directors and have been duly


                                      -20-
<PAGE>   24
authorized by all other necessary corporate action on the part of the Company
(except for the approval of the Company's shareholders as contemplated by
Section 7.3(a)). This Agreement has been duly executed and delivered by a duly
authorized officer of the Company and constitutes a valid and binding agreement
of the Company, enforceable against the Company in accordance with its terms,
except as may be limited by applicable bankruptcy, insolvency, reorganization,
moratorium and other similar laws of general application that may affect the
enforcement of creditors' rights generally and by general equitable principles.
The Company has delivered to Digital true and correct copies of resolutions
adopted by the Company's Board of Directors approving this Agreement.

5.4      CAPITAL STOCK

         (a) The authorized capital stock of the Company consists of 40,000,000
shares of Company Common Stock, of which 3,925,361 shares are outstanding as of
the date hereof, and 5,950,000 shares of Company Preferred Stock, of which
4,752,474 shares are outstanding as of the date hereof. The outstanding Shares
are held of record and beneficially by the Shareholders as set forth in the
Company Disclosure Statement; such Shareholder list specifically identifies all
Company Affiliates. All outstanding Shares are duly authorized, validly issued,
fully paid and nonassessable, and issued in compliance with all federal, state
and foreign securities laws, and no class of capital stock of the Company is
entitled to preemptive rights.

         (b) There are outstanding on the date hereof no options, warrants or
other rights to acquire capital stock from the Company, except (i) Company
Preferred Stock convertible into 1,357,851 shares of Company Common Stock, (ii)
Options representing in the aggregate the right to purchase up to 860,708 shares
of Company Common Stock, and (iii) Warrants representing in the aggregate the
right to purchase up to 105,468 shares of Company Common Stock (assuming
conversion of any shares of Company Preferred Stock for which such Warrant is
exercisable). Set forth in the Company Disclosure Statement is a spreadsheet
accurately reflecting the number of Options, Warrants and shares of Restricted
Stock outstanding, the grant dates, vesting schedules and exercise prices
thereof (in each case, as applicable), and the identities of the holders thereof
and an indication of their relationships to the Company.

         (c) Except as set forth in the Company Disclosure Statement, the
Company is not a party or subject to any agreement or understanding, and, to the
Company's knowledge, there is no agreement or understanding between any Persons,
that affects or relates to the voting or giving of written consents with respect
to any securities of the Company or the voting by any director of the Company.
Except as set forth in the Company Disclosure Statement, no Shareholder or any
Affiliate thereof is indebted to 


                                      -21-
<PAGE>   25
the Company, the Company is not indebted to any of its Shareholders or any
Affiliate thereof, and the Company is not under any contractual or other
obligation to register any of its presently outstanding securities or any of its
securities which may hereafter be issued.

5.5      LITIGATION

         Except as disclosed in the Company Disclosure Statement, there are no
actions, suits, investigations or proceedings (adjudicatory, rulemaking or
otherwise) pending or, to the Company's knowledge, threatened against the
Company (or any Employee Benefit Plan), or any property of the Company
(including the Company's Intellectual Property), in any court or before any
arbitrator of any kind or before or by any Governmental Body, except actions,
suits, investigations or proceedings that, in the aggregate, do not have, and
would not be reasonably expected (so far as can be foreseen at the time) to
have, a material adverse effect on (a) the business, properties, operations,
condition (financial or other) or, to the Company's knowledge, the prospects of
the Company or (b) the ability of the Company to perform its obligations under
this Agreement.

5.6      COMPLIANCE WITH OTHER INSTRUMENTS, ETC.

         (a) The Company is not in violation of any term of (i) its charter,
Bylaws or other organizational documents, (ii) any agreement or instrument
relating to indebtedness for borrowed money or any other agreement to which it
is a party or by which it is bound, (iii) any applicable law, ordinance, rule or
regulation of any Governmental Body, or (iv) any applicable order, judgment or
decree of any court, arbitrator or Governmental Body, the consequence of which
violation, whether individually or in the aggregate, would have, or would be
reasonably expected (so far as can be foreseen at the time) to have, a material
adverse effect on the (A) business, properties, operations, condition (financial
or other) or, to the Company's knowledge, the prospects of the Company or (B)
ability of the Company to perform its obligations under this Agreement.

         (b) The execution, delivery and performance of this Agreement by the
Company and the consummation of the transactions contemplated hereby will not
(i) constitute a violation (with or without the giving of notice or lapse of
time, or both) of any provision of law or any judgment, decree, order,
regulation or rule of any court or Governmental Body applicable to the Company,
(ii) require any Authorization or any consent or approval of any nongovernmental
Person, except compliance with applicable securities laws, the approval of the
shareholders of each of the Company and Digital and the filing of all documents
necessary to consummate the Merger with the Washington Secretary of State and
the California Secretary of State, (iii) result in 


                                      -22-
<PAGE>   26
a default (with or without the giving of notice or lapse of time, or both)
under, acceleration or termination of, or the creation in any party of the right
to accelerate, terminate, modify or cancel, any agreement, lease, note or other
restriction, encumbrance, obligation or liability to which the Company is a
party or by which it is bound or to which any assets of the Company are subject,
(iv) result in the creation of any lien or encumbrance upon the assets of the
Company or upon any outstanding Shares or other securities of the Company, (v)
conflict with any provision of the Company's charter or Bylaws, or (vi)
invalidate or adversely affect any permit, license, authorization or status used
in the conduct of the Company's business (provided that, in making the
representations in (ii), (iii) and (vi) of this paragraph (b), the Company may
assume that it will be the Surviving Corporation following the Merger).

5.7      EMPLOYEE BENEFIT PLANS

         (a) The Company Disclosure Statement sets forth an accurate and
complete list and description of, and the annual amount expected to be paid for
the Company's current fiscal year pursuant to, each employee benefit plan,
policy, program, contract or arrangement covering or benefiting any officer,
employee, former employee, director or former director of the Company or any
dependents or beneficiaries of any such person, or with respect to which the
Company has (or could have) any material obligation or liability, including, but
not limited to, each "employee benefit plan," within the meaning of Section 3(3)
of ERISA, and each retirement, pension, deferred compensation, profit-sharing,
stock bonus, stock purchase, stock option, savings, bonus, severance, cafeteria,
medical, dental, life insurance, disability, medical expense reimbursement,
dependent care expense reimbursement or tuition reimbursement plan, policy or
program (such items are hereinafter referred to collectively as "Employee
Benefit Plans" and each individually as an "Employee Benefit Plan"). The Company
has no agreement, arrangement, commitment or obligation to create any employee
benefit plan, policy, program, contract or arrangement not identified in the
Company Disclosure Statement or to modify or amend any existing Employee Benefit
Plan.

         (b) The Company has delivered to Digital true, correct and complete
copies of all Employee Benefit Plans (including all amendments thereto),
together with, to the extent applicable to a particular Employee Benefit Plan,
the following: (i) copies of the annual reports (Form 5500 series) filed with
respect to the Employee Benefit Plan for the last three years; (ii) copies of
the summary plan descriptions, summary annual reports, summaries of material
modifications and all material employee manuals or communications filed or
distributed with respect to the Employee Benefit Plan during the last three
years; (iii) copies of any insurance contracts or trust 


                                      -23-
<PAGE>   27
agreements through which the Employee Benefit Plan is funded; (iv) copies of all
contracts relating to the Employee Benefit Plan; and (v) a copy of the most
recent Internal Revenue Service determination letter issued with respect to the
Employee Benefit Plan.

         (c) With respect to each Employee Benefit Plan: (i) the Company is, and
at all times has been, in compliance with, and such Employee Benefit Plan is,
and at all times has been, maintained, administered and operated in compliance
with, the terms of such Employee Benefit Plan and all applicable laws, rules and
regulations, including, but not limited to, ERISA and the Code and which is not
otherwise exempt from the prohibited transactions provisions of ERISA or the
Code; (ii) all Tax Returns and other information relating to such Employee
Benefit Plan required to be filed with any Governmental Body have been
accurately, timely and properly filed; (iii) all notices, statements, reports
and other disclosure required to be given or made to participants in such
Employee Benefit Plan or their beneficiaries have been accurately, timely and
properly disclosed or provided; (iv) neither the Company nor any other fiduciary
of such Employee Benefit Plan has engaged in any transaction or acted or failed
to act in a manner that violates the fiduciary requirements of Section 404 of
ERISA with respect to such Employee Benefit Plan; and (v) no event has occurred
or is threatened or about to occur that would constitute a prohibited
transaction under Section 406 or 407 of ERISA or under Section 4975 of the Code
and which is not otherwise exempt from the prohibited transaction provisions of
ERISA or the Code. Each Employee Benefit Plan that is intended to be qualified
under Section 401(a) of the Code, is and at all times since inception has been,
so qualified, and its related trust is, and at all times since inception has
been, exempt from taxation under Section 501(a) of the Code. Each Employee
Benefit Plan that constitutes a "group health plan" within the meaning of
Section 4980B(g)(2) of the Code or Section 607(1) of ERISA has been administered
and operated at all times in compliance with the requirements of Section
4980B(f) of the Code and Title I, Subtitle B, Part 6 of ERISA.

         (d) All contributions and other payments required to have been made by
the Company (including any pretax or post-tax contributions or payments by
employees or their dependents) to any Employee Benefit Plan (or to any Person
pursuant to the terms thereof) have been so made, and the amount of any such
payment or contribution obligation that has accrued, but is not yet due, as of
the date hereof, has been properly reflected in the Company Financial
Statements.

         (e) There are no actions, suits or claims (other than routine claims
for benefits) pending, and to the Company's knowledge there are no actions,
suits or claims threatened, with respect to any Employee Benefit Plan or against
the assets of 


                                      -24-
<PAGE>   28
any Employee Benefit Plan, nor, to the Company's knowledge, is there a
reasonable basis for any such action, suit or claim. None of the Employee
Benefit Plans is currently under investigation, audit or review, directly or
indirectly, by the IRS, the DOL or any other Governmental Body, and, to the
Company's knowledge, no such action is contemplated or under consideration by
the IRS, DOL or any other Governmental Body.

         (f) The Company does not maintain or contribute to, and has never
maintained or contributed to (or been obligated to contribute to), any
multi-employer plan within the meaning of Section 3(37) or Section 4001(a)(3) of
ERISA, or any plan that is subject to Section 302 or Title IV of ERISA or
Section 412 of the Code.

         (g) The Company is not, and has never been, a member of (i) a
controlled group of corporations, within the meaning of Section 414(b) of the
Code, (ii) a group of trades or businesses under common control, within the
meaning of Section 414(c) of the Code, (iii) an affiliated service group, within
the meaning of Section 414(m) of the Code, or (iv) any other group of persons,
organizations and/or entities that is treated as a single employer under Section
414(o) of the Code.

         (h) No Employee Benefit Plan that is an "employee welfare benefit plan"
within the meaning of Section 3(l) of ERISA provides, or has any obligation to
provide, benefits with respect to current or former employees of the Company or
any other entity beyond their retirement or other termination of service,
including, without limitation, post-retirement (or post-termination) medical,
dental, life insurance, severance or any other similar benefit, whether provided
on an insured or self-insured basis, other than continuation coverage required
to be provided under Section 4980B of the Code or Title I, Subtitle B, Part 6 of
ERISA.

         (i) The consummation of any transaction contemplated hereby will not
result in any (i) payment (whether of severance pay or otherwise) becoming due
from the Company to any officer, employee, former employee or director thereof
or to the trustee under any "rabbi trust" or similar arrangement or (ii) benefit
under any Employee Benefit Plan being established or becoming accelerated,
vested or payable.

5.8      TAXES

         The Company has (a) duly and timely filed, including valid extensions,
with the appropriate Governmental Bodies all Tax Returns required to be filed by
it, all of which Tax Returns are true, correct and complete, and (b) paid in
full or provided for all Taxes that are due or claimed to be due by any
Governmental Body. Except as described in the Company Disclosure Statement, (i)
the reserves and provisions for Taxes reflected in the Company Financial
Statements are adequate for the payment of 


                                      -25-
<PAGE>   29
current Taxes not yet due and payable; (ii) no unresolved claim for assessment
or collection of Taxes has been asserted or threatened against the Company, and
no audit or investigation by any Governmental Body is under way with respect to
Taxes, interest or other charges; (iii) to its knowledge, no circumstances exist
or have existed which would constitute grounds for assessment against the
Company of any Tax liability with respect to any period for which Tax Returns
have been filed; (iv) the Company has not filed or entered into any election,
consent or extension agreement or any waiver that extends any applicable statute
of limitations; (v) any Taxes incurred by the Company or accrued by it since
September 30, 1996 have arisen in the ordinary course of business; and (vi) the
Company has not filed any consent to the application of Section 341(f)(2) of the
Code to any assets held, acquired or to be acquired by it. The Company has
furnished Digital with complete and correct copies of all Tax Returns filed by
the Company. There are no Tax liens on any property or assets of the Company
other than liens for Taxes not yet due and payable. No claim has been made by an
authority in any jurisdiction where the Company does not file Tax Returns that
the Company is or may be subject to taxation by that jurisdiction. The Company
(1) has not made any payments, is not obligated to make any payments, and is not
a party to any agreement (including this Agreement) that could obligate it to
make any payments that will not be deductible under Section 280G of the Code;
(2) has not been a U.S. real property holding corporation within the meaning of
Section 897(c)(2) of the Code during the applicable period specified in Section
897(c)(1)(A)(2)(i) of the Code; (3) is not a party to any Tax allocation or
sharing agreement; (4) has not been a member of an affiliated group filing a
consolidated income Tax Return; and (5) does not have any liability for Taxes of
any Person under Treasury Regulations Section 1.1502-6 (or any similar provision
of state, local or foreign law) as a transferor or successor by contract or
otherwise.

5.9      INTELLECTUAL PROPERTY

         Set forth in the Company Disclosure Statement is a true and complete
list of all of the Company's Intellectual Property and Intellectual Property
Licenses. Such list indicates the specific Intellectual Property affected by
each Intellectual Property License. To the Company's knowledge, neither the
Company's operations nor any of its Intellectual Property or Intellectual
Property Licenses infringe or provide any basis to believe that its operations
or any of its Intellectual Property or Intellectual Property Licenses would
infringe upon any validly issued or pending trademark, trade name, service mark,
copyright or, to the knowledge of the Company, any validly issued or pending
patent or other right of any other Person, nor, to the knowledge of the Company,
is there any infringement by any other Person of any of the Company's
Intellectual Property or of any other intellectual property to which the
Company's Intellectual Property Licenses relate. The consummation of the
transactions 


                                      -26-
<PAGE>   30
contemplated hereby will not alter or impair the Company's rights to any of its
Intellectual Property or under any of its Intellectual Property Licenses. The
manner in which the Company has manufactured, packaged, shipped, advertised,
labeled and sold its products complies with all applicable laws and regulations
pertaining thereto.

         Except as set forth in the Company Disclosure Statement, the Company is
not aware of any adverse claim to its sole and exclusive ownership of or
licensee rights to:

         (a) its Intellectual Property, its Intellectual Property Licenses and
the technology, know-how and processes now used by it, or used in connection
with any product now being manufactured and sold by it, in the manner that such
product is now being manufactured and sold, and

         (b) all right, title and interest of whatever kind or nature throughout
the world in and to the fully or partially developed computer software products
listed in the Company Disclosure Statement, with all modifications, enhancements
and additions thereto, including, without limitation, all rights in and to all
versions thereof and all source code, object code, manuals and other
documentation and related materials thereof (collectively, the "Software
Products"). Without limiting the generality of the above, the Software Products
shall also include all of the Company's related programs, trade secrets,
algorithms and processes relating to the Software Products or such programs, the
Company's copyright in and to each of the Software Products and all works
derivative therefrom, all current, previous, enhanced and developmental versions
of the source and object code and any variations thereof, all user and
programmer documentation, all design specifications, all maintenance and
installation job control language, all systems documentation (including all flow
charts, systems procedures and program component descriptions), all procedures
for modification and preparation for the release of enhanced versions and all
test data available (excluding all proprietary information of third parties)
with respect to the Software Products.

         Each of the Company's Intellectual Property Licenses is valid, binding
and enforceable in accordance with its terms against the parties thereto, the
Company has performed all obligations imposed upon it thereunder, and neither
the Company nor, to the Company's knowledge, any other party thereto is in
default thereunder, nor is there any event which with notice or lapse of time,
or both, would constitute a default by the Company or, to the Company's
knowledge, any other party thereunder. The Company has not received notice that
any party to any of the Company's Intellectual Property Licenses intends to
cancel, terminate or refuse to renew the same or to exercise or decline to
exercise any option or other right thereunder. No licenses, sublicenses,
covenants or agreements have been granted or entered into by the 


                                      -27-
<PAGE>   31
Company in respect of any of the Company's Intellectual Property except the
Intellectual Property Licenses listed in the Company Disclosure Statement and
except for licenses, sublicenses, covenants or agreements involving obligations
(contingent or otherwise) not in excess of $250,000 during the fiscal year
ending December 31, 1996, or, to the Company's knowledge, in any future year. No
director, officer, shareholder or employee of the Company owns, directly or
indirectly, in whole or in part, any of the Company's Intellectual Property. To
the Company's knowledge, none of the Company's officers, directors, employees,
consultants, distributors, agents, representatives or advisors has entered into
any agreement regarding know-how, trade secrets, assignment of rights in
inventions, or prohibition or restriction of competition or solicitation of
customers, or any other similar restrictive agreement or covenant, whether
written or oral, with any Person other than the Company, that would be
reasonably expected to have (as far as can be foreseen at the time), a material
adverse effect on the business, properties, operations, condition (financial or
other) assets, liabilities or, to the Company's knowledge, prospects of the
Company.

         No Person has asserted any claim of infringement or other interference
with third-party rights with respect to the Company's Intellectual Property.
Except as set forth in the Company Disclosure Statement, (i) the Company has not
disclosed any source code regarding the Software Products to any Person other
than an employee of the Company or to Digital or Merger Sub, except for any
disclosure that would not be reasonably expected (as far as can be foreseen at
the time) to have a material adverse effect on the business, properties,
operations, condition (financial or other) or, to the Company's knowledge,
prospects of the Company; (ii) the Company has at all times maintained
reasonable procedures to protect, and has enforced, all of its trade secrets;
(iii) neither the Company nor any escrow agent is under any contractual or other
obligation to disclose the source code or any other proprietary information
included in or relating to the Company's Software Products (nor, to the
knowledge of the Company, is any other party to the Company's Intellectual
Property Licenses under any obligation to disclose any source code or other
proprietary information included in or relating to such Software Products) to
any Person, and no event has occurred, including the execution of this Agreement
or any related change in the Company's business activities, which would give
rise to such obligation; and (iv) the Company has not deposited any source code
regarding the Software Products into any source code escrows or similar
arrangements. If, as disclosed in the Company Disclosure Statement, the Company
has deposited any source code to its Software Products into source code escrows
or similar arrangements, no event has occurred that has or could reasonably form
the basis for a release of such source code from such escrows or arrangements.


                                      -28-
<PAGE>   32
         The Software Products are free from known significant defects and
substantially conform to the specifications, documentation and sample
demonstration furnished to the Company's current or prospective customers or to
Digital.

5.10     FINANCIAL STATEMENTS

         The Company has provided to Digital true and correct copies of its (a)
audited consolidated balance sheets as of December 31, 1993, 1994 and 1995, and
related audited statements of operations and cash flows for the fiscal years
then ended, and (b) unaudited consolidated balance sheets as of March 31, 1996
and June 30, 1996, and related unaudited statements of operations and cash flows
for the quarters then ended (collectively, the "Company Financial Statements").
Each of such balance sheets (including the related notes) presents fairly, in
all material respects, the consolidated financial position of the Company and
its Subsidiaries as of the respective dates thereof, and the other related
statements (including the related notes) included therein present fairly, in all
material respects, the results of operations and cash flows of the Company for
the respective periods or as of the respective dates set forth therein, all in
conformity with generally accepted accounting principles consistently applied
during the periods involved, except as otherwise noted therein and subject, in
the case of the unaudited interim financial statements, to normal year-end
adjustments (other than reclassifications having no effect on profit or loss)
which will not have a net negative effect on profit or loss of $150,000 or more
in the aggregate and any other adjustments described therein and except that
such interim financial statements do not contain the notes required by generally
accepted accounting principles. The Company has no liabilities or financial
obligations (absolute, contingent or otherwise) required to be disclosed in
financial statements or notes thereto, in accordance with generally accepted
accounting principles, which are not fully reflected or reserved against in the
June 30, 1996 balance sheet, except such liabilities or obligations that (i)
were incurred since the date of the balance sheet in the ordinary course of
business and consistent with past practice or (ii) are not in excess of $25,000
in the aggregate or $5,000 individually. The Company maintains standard systems
of accounting which are adequate for its business. The Company's practices with
respect to capitalizing software development costs, as reflected in the Company
Financial Statements, are reasonable, in accordance with industry standards, and
in conformity with generally accepted accounting principles, consistently
applied during the periods involved.

5.11     ABSENCE OF CERTAIN CHANGES OR EVENTS

         Except as specifically set forth in the Company Disclosure Statement
and except for transactions specifically contemplated in this Agreement, since
June 30, 


                                      -29-
<PAGE>   33
1996, neither the Company nor any of its officers or directors in their
representative capacities on behalf of the Company has:

         (a) taken any action or entered into or agreed to enter into any
transaction, agreement or commitment other than in the ordinary course of
business or involving an insignificant obligation or expenditure;

         (b) forgiven or canceled any indebtedness or waived any claims or
rights of material value (including, without limitation, any indebtedness owing
by any shareholder, officer, director, employee or Affiliate of the Company);

         (c) granted, other than in the ordinary course of business and
consistent with past practice, any increase in the compensation of directors,
officers, employees or consultants (including any such increase pursuant to any
employment agreement or bonus, pension, profit-sharing, lease payment or other
plan or commitment);

         (d) suffered any material adverse change in its business, properties,
operations, condition (financial or other), assets, liabilities or, to the
Company's knowledge, its reasonably foreseeable prospects (other than as a
result of economic or political developments of general applicability);

         (e) borrowed or agreed to borrow any funds, incurred or become subject
to, whether directly or by way of assumption or guarantee or otherwise, any
obligations or liabilities (absolute, accrued, contingent or otherwise), except
liabilities and obligations that (i) were incurred in the ordinary course of
business and consistent with past practice or (ii) are not in excess of $25,000
in the aggregate or $5,000 individually, or increased, or experienced any change
in any assumptions underlying, or methods of calculating, any bad debt,
contingency or other reserves;

         (f) paid, discharged or satisfied any claims, liabilities or
obligations (absolute, accrued, contingent or otherwise) other than the payment,
discharge or satisfaction in the ordinary course of business and consistent with
past practice, or not in excess of $25,000 in the aggregate or $5,000
individually, of claims, liabilities and obligations reflected or reserved
against in the June 30, 1996 balance sheet or incurred in the ordinary course of
business and consistent with past practice since June 30, 1996, or prepaid any
obligation having a fixed maturity of more than 90 days from the date such
obligation was issued or incurred;

         (g) permitted or allowed any of its property or assets (real, personal
or mixed, tangible or intangible) to be subjected to any mortgage, pledge, lien,
security interest, encumbrance, restriction or charge, except (i) assessments
for current Taxes not yet due and payable, (ii) landlord's liens for rental
payments not yet due and 


                                      -30-
<PAGE>   34
payable, and (iii) mechanics', materialmen's, carriers' and other similar
statutory liens securing indebtedness that was incurred in the ordinary course
of business and is not yet due and payable;

         (h) written down the value of any inventory (including write-downs by
reason of shrinkage, markdown or obsolescence) or written off as uncollectible
any notes or accounts receivable, except in the ordinary course of business and
consistent with past practice;

         (i) sold, transferred or otherwise disposed of any of its properties or
assets (real, personal or mixed, tangible or intangible), except the sale of
inventory in the ordinary course of business and consistent with past practice;

         (j) disposed of or permitted to lapse any rights to the use of any
trademark, trade name, patent or copyright, or disposed of or disclosed to any
Person without obtaining an appropriate confidentiality agreement from any such
Person any trade secret, formula, process or know-how not theretofore a matter
of public knowledge;

         (k) made any single capital expenditure or commitment in excess of
$150,000 for additions to property, plant, equipment or intangible capital
assets or made aggregate capital expenditures in excess of $750,000 for
additions to property, plant, equipment or intangible capital assets;

         (l) made any change in any method of accounting or accounting practice
or internal control procedure;

         (m) issued any capital stock or other securities (other than grants of
options under the Company Option Plans or the issuance of Company Common Stock
upon the exercise of options granted under the Company Option Plans), or
declared, paid or set aside for payment any dividend or other distribution in
respect of its capital stock, or redeemed, purchased or otherwise acquired,
directly or indirectly, any shares of capital stock or other securities of the
Company, or otherwise permitted the withdrawal by any of the holders of capital
stock of the Company of any cash or other assets (real, personal or mixed,
tangible or intangible), in compensation, indebtedness or otherwise, other than
payments of compensation in the ordinary course of business and consistent with
past practice;

         (n) paid, loaned or advanced any amount to, or sold, transferred or
leased any properties or assets (real, personal or mixed, tangible or
intangible) to, or entered into any agreement or arrangement with, any of the
Company's shareholders, officers, directors or employees or any Affiliate
thereof, except for (i) compensation paid to officers and employees at rates not
exceeding the rates of compensation paid during 


                                      -31-
<PAGE>   35
the fiscal year last ended, (ii) compensation increased in the ordinary course
of business and consistent with past practice, (iii) funds advanced to the
Company's employees for travel expenses in the ordinary course of business and
consistent with past practice, and (iv) draws on commissions in the ordinary
course of business and consistent with past practice of up to $20,000 per
individual employee;

         (o) entered into or agreed to enter into, or otherwise suffered to be
outstanding, any power of attorney of the Company or any obligations or
liabilities (absolute, accrued, contingent or otherwise) of the Company, as
guarantor, surety, cosigner, endorser, comaker, indemnitor or otherwise in
respect of the obligation of any other Person;

         (p) received notice of, or otherwise obtained knowledge of (i) any
action, suit, arbitration, proceeding or investigation involving, pending
against or threatened against the Company or any employee of the Company in any
court or before any arbitrator of any kind or before or by any Governmental
Body; (ii) any valid basis for any action, suit, arbitration, proceeding,
investigation or the application of any fine or penalty adverse to the Company
or any employee of the Company; or (iii) any outstanding or unsatisfied
judgments, orders, decrees or stipulations to which the Company or any employee
of the Company is a party and where such items in clause (i), (ii) or (iii)
above relate directly to the transactions contemplated herein or which would be
reasonably expected (so far as can be foreseen at the time) to have a material
adverse effect on the business, properties, operations, condition (financial or
other) or, to the Company's knowledge, the prospects of the Company;

         (q) entered into or agreed to any sale, assignment, transfer or license
of any patents, trademarks, copyrights, trade secrets or other intangible assets
of the Company or any amendment or change to any existing license or other
agreement relating to intellectual property, other than in the ordinary course
of business;

         (r) received notice that there has been a loss of, or contract
cancellation by, any material current or prospective customer, licensor or
distributor of the Company; or

         (s) agreed, whether in writing or otherwise, to take any action
described in this Section 5.11.

5.12     CONTRACTS AND LEASES

         The Company Disclosure Statement contains an accurate and complete
listing of all material contracts, leases, agreements or understandings, whether
written or oral, of the Company. For purposes of this representation, a
contract, lease, 


                                      -32-
<PAGE>   36
agreement or understanding is "material" if it involves (a) obligations
(contingent or otherwise) of, or payments to the Company in excess of, $250,000
during the fiscal year ending December 31, 1996, or to the Company's knowledge,
in any future year, or (b) the license of any patent, copyright, trade secret or
other proprietary right (i) to the Company which is necessary for the Company to
carry on its business or (ii) from the Company which materially limits the
ability of the Company to carry on its business. Each of such contracts, leases,
agreements and understandings is in full force and effect and is valid, binding
and enforceable in accordance with its terms against each party thereto, and (A)
none of the Company or, to the Company's knowledge, any other party thereto has
breached any of the above or is in default thereunder, (B) no event has occurred
which, with notice or lapse of time, or both, would constitute such a breach or
default, (C) no claim of material default thereunder has, to the Company's
knowledge, been asserted or threatened, and (D) none of the Company or, to the
Company's knowledge, any other party thereto is seeking the termination or
renegotiation thereof or substitute performance thereunder, except where such
breach or default, or attempted termination, renegotiation or substitute
performance, individually or in the aggregate, does not have, and would not be
reasonably expected (so far as can be foreseen at the time) to have, a material
adverse effect on the business, properties, operations, condition (financial or
other) or, to the Company's knowledge, the prospects of the Company. True and
complete copies of each such written contract (or written summaries of the terms
of any such oral contract) have been heretofore delivered to Digital. Except as
specifically set forth in the Company Disclosure Statement, the Company has no:

         (a) outstanding sales or service contracts, bids, commitments or
proposals priced significantly lower than the Company's customary list price for
such products or services such that the contract, bid, commitment or proposal
might be expected by the Company to result in any loss upon completion or
performance thereof,

         (b) contracts with its agents, consultants, advisors, distributors or
dealers that are not, except as provided by law to the contrary without regard
to the express terms of such contract, cancelable by the Company within 30 days'
notice without liability, penalty or premium exceeding $5,000;

         (c) agreement or arrangement providing for the payment of any bonus or
commission based on sales or earnings, or any compensation agreement or
arrangement affecting or relating to former employees of the Company;

         (d) employment agreement, whether express or implied, or any other
agreement for services that contains any severance or termination pay
liabilities or obligations;


                                      -33-
<PAGE>   37
         (e) noncompetition agreement or other restriction from carrying on its
business anywhere in the world;

         (f) liability or obligation with respect to the return of inventory or
merchandise other than on account of a defective condition, incorrect quantities
or missed delivery dates; or

         (g) disagreement with any of its suppliers, customers, distributors,
OEM resellers, licensors or licensees, except where such disagreement does not
have and would not be reasonably expected (so far as can be foreseen at the
time) to have a material adverse effect on the business, properties, operating
condition (financial or other) or, to the Company's knowledge, the prospects of
the Company.

5.13     INSIDER INTERESTS

         Except as set forth in the Company Disclosure Statement, no officer,
director, Affiliate or other representative of the Company has any interest
(other than as a shareholder of the Company) (a) in any of the Company's Real
Property or Personal Property or (b) to the Company's knowledge, in any
agreement, contract, arrangement or obligation relating to the Company, its
present or prospective business or its operations. The Company and, to the
Company's knowledge, its officers and directors have no interest, either
directly or indirectly, in any Person that presently (i) provides any services,
produces and/or sells any products or product lines, or engages in any activity
which is competitive with the business in which the Company is now engaged or
proposes to engage (other than as a beneficial owner of shares in a publicly
held company aggregating less than 5% of the total outstanding equity interest
in such company, held for investment only); (ii) is a supplier, customer or
creditor, or has an existing contractual relationship with any of the Company's
employees (or Persons performing similar functions); or (iii) has any direct or
indirect interest in any asset or property, real or personal, tangible or
intangible, of the Company or any property, real or personal, tangible or
intangible, that is necessary or desirable for the present or anticipated future
conduct of the Company's business.

5.14     BROKERS AND FINDERS

         Except for the fees and expenses payable to Hambrecht & Quist LLC and
Cowen and Company , the Company has not employed any investment banker, broker,
finder, consultant or intermediary, in connection with the transactions
contemplated by this Agreement, which would be entitled to any investment
banking, brokerage, finder's or similar fee or commission in connection with
this Agreement or the transactions contemplated hereby.


                                      -34-
<PAGE>   38
5.15     S-4 REGISTRATION STATEMENT AND PROXY STATEMENT/PROSPECTUS

         None of the information supplied or to be supplied by the Company for
inclusion or incorporation by reference in the S-4 Registration Statement or the
Proxy Statement/Prospectus will (a) in the case of the S-4 Registration
Statement, at the time it becomes effective, 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 light of the
circumstances under which they were made, not misleading or (b) in the case of
the Proxy Statement/Prospectus, at the time of mailing the Proxy
Statement/Prospectus, at the time of the Digital Shareholders Meeting and at the
time consents of the Company's shareholders are obtained, 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 light of
the circumstances under which they are made, not misleading. If at any time
prior to the Effective Time any event with respect to the Company or its
officers and directors shall occur that is required to be described in the Proxy
Statement/Prospectus or the S-4 Registration Statement, the Company shall notify
Digital thereof by reference to this Section 5.15 and cooperate with Digital in
preparing and filing with the SEC and, as required by law, disseminating to the
shareholders of the Digital and Company an amendment or supplement which
accurately describes such event or events in compliance with all provisions of
applicable law.

5.16     TAX MATTERS

         The representations set forth in the numbered paragraphs of the form of
Tax Matters Certificate of the Company attached hereto as Exhibit 5.16 (the
"Company Tax Matters Certificate") are true and correct in all respects, and
such representations are hereby incorporated herein by reference with the same
effect as if set forth herein in their entirety.

5.17     PROPERTY

         (a) The Company owns no real property other than the leasehold
interests described in the Company Disclosure Statement, which contains a
complete and accurate list of all real property of the Company which is leased,
rented or used by the Company (the "Real Property").

         (b) The Company has separately delivered to Digital a complete and
accurate report for the period beginning January 1, 1995 of the Company's fixed
asset and roll-forward schedule, which lists all leaseholds, improvements,
leased equipment and other furniture, equipment and personal property (the
"Personal Property"), showing aggregate additions, deletions and changes through
September 30, 1996. The 


                                      -35-
<PAGE>   39
Real Property and the Personal Property include all properties and assets
(whether real, personal or mixed, tangible or intangible) (other than, in the
case of the Personal Property, property rights with an individual value of less
than $5,000) reflected in the June 30, 1996 balance sheet and all the properties
and assets purchased by the Company since June 30, 1996 (except for such
properties or assets sold since such date in the ordinary course of business and
consistent with past practice). The Real Property and the Personal Property
include all material property used in the business of the Company.

         (c) The Company's leasehold interest in each parcel of the Real
Property is free and clear of all liens, mortgages, pledges, deeds of trust,
security interests, charges, encumbrances and other adverse claims or interests
of any kind. Each lease of any portion of the Real Property is valid, binding
and enforceable in accordance with its terms against the parties thereto and any
other Person with an interest in such Real Property, the Company has performed
in all material respects all obligations imposed upon it thereunder, and neither
the Company nor any other party thereto is in default thereunder nor is there
any event which with notice or lapse of time, or both, would constitute a
default thereunder. Except as set forth in the Company Disclosure Statement, no
consent is required from any Person under any lease or other agreement or
instrument relating to the Real Property in connection with the consummation of
the transactions contemplated by this Agreement, and the Company has not
received notice that any party to any such lease or other agreement or
instrument intends to cancel, terminate or refuse to renew the same or to
exercise or decline to exercise any option or other right thereunder. The
Company has not granted any lease, sublease, tenancy or license of, or entered
into any rental agreement or contract of sale with respect to, any portion of
the Real Property.

         (d) The Company's offices, warehouse and other structures and its
Personal Property are of a quality consistent with industry standards, are in
good operating condition and repair, normal wear and tear excepted, are adequate
for the uses to which they are being put, and, to the Company's knowledge,
comply in all material respects with applicable safety and other laws and
regulations. To the Company's knowledge, the Company is not in violation of, and
has not violated, in connection with the ownership, use, maintenance or
operation of the Real Property or the Personal Property or the conduct of its
business, any applicable federal, state, county or local statutes, laws,
regulations, guidances, rules, ordinances, codes, licenses, permits, judgments,
writs, decrees, injunctions or orders of any Governmental Body relating to
environmental (air, water, groundwater, soil, noise and odor) matters, including
without limitation, the Clean Air Act, the Federal Water Pollution Control Act,
the Resource Conservation and Recovery Act and the regulations issued
thereunder, the Comprehensive Environmental Response, Compensation, and
Liability 


                                      -36-
<PAGE>   40
Act, the Clean Water Act, the Hazardous Materials Transportation Act,
the Toxic Substances Control Act, the Hazardous Waste Control Act, comparable
California laws, and the regulations issued thereunder, and all other applicable
federal, state, county, local and foreign environmental requirements where such
violation would be reasonably expected (so far as can be foreseen at the time)
to have, a material adverse effect on the Company's business, properties,
operations, condition (financial or other) or, to the Company's knowledge,
prospects.

         (e) Except as set forth in the Company Disclosure Statement, and except
for (i) assessments for current Taxes not yet due and payable, (ii) landlord's
liens for rental payments in respect of the Real Property incurred in the
ordinary course of business and not yet due and payable, and (iii) mechanics',
materialmen's, carriers' and other similar statutory liens securing indebtedness
that was incurred in the ordinary course of business and is not yet due and
payable, the Personal Property is free and clear of all liens, and, other than
leased Personal Property which is so noted on the list supplied pursuant to
clause (b) of this Section 5.17, the Company owns such Personal Property.

         (f) Each lease, license, rental agreement, contract of sale or other
agreement to which the Personal Property is subject is valid, binding and
enforceable in accordance with its terms against the parties thereto, the
Company has performed in all material respects all obligations imposed on it
thereunder, and neither the Company nor, to the Company's knowledge, any other
party thereto is in default thereunder, nor is there any event which with notice
or lapse of time, or both, would constitute a default by the Company or, to the
Company's knowledge, any other party thereunder. Except as set forth in the
Company Disclosure Statement, no consent is required from any Person under any
lease or other agreement or instrument relating to the Personal Property in
connection with the consummation of the transactions contemplated by this
Agreement, and the Company has not received notice that any party to any such
lease or other agreement or instrument intends to cancel, terminate or refuse to
renew the same or to exercise or decline to exercise any option or other right
thereunder. The Company has not granted any lease, sublease, tenancy or license
of any portion of the Personal Property.

         (g) Neither the whole nor any portion of the leaseholds or any other
assets or property of the Company is subject to any currently outstanding
governmental decree or order to be sold or is being condemned, expropriated or
otherwise taken by any public authority with or without payment of compensation
therefor, nor has any such condemnation, expropriation or taking been proposed.


                                      -37-
<PAGE>   41
5.18     CUSTOMERS AND SUPPLIERS

         The Company Disclosure Statement sets forth (a) a complete and accurate
list of the customers of the Company accounting for 5% or more of the Company's
sales during the fiscal year last ended, showing the approximate total sales by
the Company to each such customer during the fiscal year last ended and the
nine-month period ended September 30, 1996, and (b) a complete and accurate list
of the suppliers of the Company from whom the Company has purchased 5% or more
of the goods or services purchased by the Company in the fiscal year last ended.
The Company has no reasonable basis to expect any material modification to its
relationship with any customer or supplier named in the Company Disclosure
Statement.

5.19     ORDERS, COMMITMENTS AND RETURNS

         The Company Disclosure Statement contains an accurate summary of the
Company's total backlog of orders (including all accepted and unfulfilled sales
orders) and the aggregate of all outstanding purchase orders issued by the
Company (which include all contracts or commitments for the purchase by the
Company of materials or other supplies). All such sale and purchase commitments
were made in the ordinary course of business. Except as set forth in the Company
Disclosure Statement, there are no outstanding claims in excess of $100,000 in
the aggregate or $25,000 individually against the Company to return products by
reason of alleged failure to conform to customer expectations, defective
products, missed delivery dates or otherwise, or of products in the possession
of customers under an understanding that such products would be returnable.

5.20     LABOR AND EMPLOYMENT MATTERS

         There are no material labor disputes, employee grievances or
disciplinary actions pending or, to the Company's knowledge, threatened against
or involving the Company or any of its present or former employees, and the
Company has not experienced any work stoppage or other labor difficulty since
its incorporation. The Company has complied with all provisions of law relating
to employment and employment practices, terms and conditions of employment,
wages and hours, the failure to comply with which would be reasonably expected
(so far as can be foreseen at the time) to have a material adverse effect upon
the business properties, operations, condition (financial or other) or, to the
Company's knowledge, the prospects of the Company. The Company is not engaged in
any unfair labor practice and has no liability for any arrears of wages or Taxes
or penalties for failure to comply with any such provisions of law. No
collective bargaining agreement is binding on the Company, and the Company has
no knowledge of any organizational efforts presently being made or threatened by
or on behalf of any labor union or other employee 

                                      -38-
<PAGE>   42
organization with respect to employees of the Company. Each employee, officer
and consultant of the Company has executed a nondisclosure agreement in the form
provided to Digital. To the Company's knowledge, no employee (or Person
performing similar functions) of the Company is in violation of any such
agreement or any employment agreement, noncompetition agreement, patent
disclosure agreement, invention assignment agreement, proprietary information
agreement or other contract or agreement relating to the relationship of such
employee with the Company or any other party, and the Company will use its best
efforts to prevent any such violation. The Company Disclosure Statement sets
forth a true and complete list of (a) the names and current compensation amounts
of all directors and officers of the Company; (b) the wage rates for nonsalaried
and nonofficer salaried employees of the Company by classification, and all
labor union contracts (if any); (c) all group insurance programs in effect for
employees of the Company; and (d) the names and current compensation packages of
all independent contractors and consultants of the Company. The Company is not
in default with respect to any of its obligations referred to above and has no
obligation or liability for severance or back pay owed through or by virtue of
the Closing. Except as disclosed in the Company Disclosure Statement, all
employees of the Company are employed on an "at will" basis.

5.21     ACCOUNTS RECEIVABLE

         All accounts receivable of the Company reflected in the June 30, 1996
balance sheet, or existing at the Effective Time, represent sales actually made
in the ordinary course of business and were recorded in the Company's books
consistently with generally accepted principles governing revenue recognition,
consistently applied during the periods involved. The bad debt reserves and
sales return allowances reflected in the June 30, 1996 balance sheet are in
conformity with generally accepted accounting principles consistently applied
during the periods involved. Set forth in the Company Disclosure Statement is a
full and complete list and aging study of all consolidated accounts receivable
of the Company existing as of June 30, 1996.

5.22     CORPORATE BOOKS AND RECORDS

         The Company has furnished to Digital or its representatives for their
examination true and complete copies of (a) the charter and Bylaws of the
Company as currently in effect, including all amendments thereto, (b) the minute
books of the Company, and (c) the stock transfer books of the Company. Such
minutes reflect all meetings of the Company's shareholders, Board of Directors
and any committees thereof since the Company's inception, and accurately reflect
in all material respects the events of and actions taken at such meetings. Such
stock transfer books accurately 


                                      -39-
<PAGE>   43
reflect all issuances and transfers of shares of capital stock of the Company
since its inception.

5.23     LICENSES, PERMITS, AUTHORIZATIONS, ETC.

         Except as identified in the Company Disclosure Statement, the Company
has received all currently required Authorizations, licenses, orders,
registrations and permits of all Governmental Bodies, the failure to obtain
which would be reasonably expected (so far as can be foreseen at the time) to
have a material adverse effect on its business properties, operations, condition
(financial or other) or, to the Company's knowledge, prospects. The Company has
not received any notifications of any asserted present failure by it to have
obtained any such Authorization, license, order, registration or permit, or past
and unremedied failure to obtain such items.

5.24     INSURANCE

         The Company maintains (a) insurance on all of its property (including
leased premises) that insures against loss or damage by fire or other casualty
(including extended coverage) and (b) insurance against liabilities, claims and
risks of a nature and in such amounts as are normal and customary in the
Company's industry for companies of similar size and financial condition. All
insurance policies of the Company are in full force and effect, all premiums
with respect thereto covering all periods up to and including the date this
representation is made have been paid, and no notice of cancellation or
termination has been received with respect to any such policy. Such policies are
sufficient for compliance with all requirements of law currently applicable to
the Company and of all agreements to which the Company is a party, will remain
in full force and effect through the respective expiration dates of such
policies without the payment of additional premiums, and will not in any way be
affected by, or terminate or lapse by reason of, the transactions contemplated
by this Agreement. The Company has not been refused any insurance with respect
to its assets or operations, nor has its coverage been limited, by any insurance
carrier to which it has applied for any such insurance or with which it has
carried insurance.

5.25     ABSENCE OF QUESTIONABLE PAYMENTS

         Neither the Company nor any director, officer, agent, employee or other
Person acting on behalf of the Company has used any Company funds for improper
or unlawful contributions, payments, gifts or entertainment, or made any
improper or unlawful expenditures relating to political activity to domestic or
foreign governmental officials or others. The Company has adequate financial
controls to prevent such improper or unlawful contributions, payments, gifts,
entertainment or expenditures. Neither the Company nor any current director,
officer, agent, employee 

                                      -40-
<PAGE>   44
or other Person acting on behalf of the Company has accepted or received any
improper or unlawful contributions, payments, gifts or expenditures. The Company
has at all times complied, and is in compliance, in all respects with the
Foreign Corrupt Practices Act and all foreign laws and regulations relating to
prevention of corrupt practices and similar matters.

5.26     BANK ACCOUNTS

         The Company Disclosure Statement sets forth the names and locations of
all banks, trust companies, savings and loan associations and other financial
institutions at which the Company maintains safe deposit boxes or accounts of
any nature and the names of all Persons authorized to draw thereon, make
withdrawals therefrom or have access thereto.

5.27     POOLING MATTERS

         The Company has not taken any action, or become aware of any action
taken by any shareholder of the Company, involving any recapitalization or
repurchase or redemption of any securities of the Company, or any grant or
acceleration of any options to acquire securities of the Company, or any
purchase or sale of securities of Digital, and to the Company's knowledge there
have occurred no other events with respect to or involving the Company or its
shareholders that, taken individually or together, would, to the Company's
knowledge, affect the ability of Digital to account for the transactions
contemplated by this Agreement as a "pooling of interests" transaction in
accordance with generally accepted accounting principles, and the Company is not
aware of any facts, excluding actions by Digital, that otherwise could prevent
such accounting treatment.

5.28     FULL DISCLOSURE

         The Company Financial Statements, the S-1 Registration Statement and
all information in the Company Disclosure Statement and the Exhibits hereto do
not contain any untrue statement of a material fact or omit to state a material
fact necessary in order to make the statements so made or information so
delivered not misleading and, to the Company's knowledge, no other information
furnished by the Company to Digital or its representatives in connection with
this Agreement contains any untrue statement of a material fact or omits to
state a material fact necessary in order to make the statements so made or
information so delivered not misleading,

                                      -41-
<PAGE>   45
                                   ARTICLE VI

                    REPRESENTATIONS AND WARRANTIES OF DIGITAL
                                 AND MERGER SUB

         Each of Digital and Merger Sub hereby represents and warrants to the
Company that, except as set forth in the Digital Disclosure Statement:

6.1      ORGANIZATION, ETC. OF DIGITAL

         Digital is a corporation duly organized, validly existing and in good
standing under the laws of the state of Washington and has all requisite
corporate power and authority to own and operate its properties, to carry on its
business as now conducted, to enter into this Agreement and to carry out the
provisions of this Agreement and consummate the transactions contemplated
hereby. Digital is duly qualified and in good standing in each jurisdiction in
which the property owned, leased or operated by it or the nature of the business
conducted by it makes such qualification necessary and where the failure to be
so qualified has, or would be reasonably expected (so far as can be foreseen at
the time) to have, a material adverse effect on the business, properties,
operations, condition (financial or other) or, to Digital's knowledge, the
prospects of Digital and its Subsidiaries taken as a whole. Digital has obtained
from the appropriate Governmental Bodies all approvals and licenses necessary
for the conduct of its business and operations as currently conducted, which
approvals and licenses are valid and remain in full force and effect, except
where the failure to have obtained such approvals or licenses or the failure of
such approvals and licenses to be valid and in full force and effect does not
have, and would not be reasonably expected (so far as can be foreseen at the
time) to have, a material adverse effect on the business, properties,
operations, condition (financial or other) or, to Digital's knowledge, the
prospects of Digital and its Subsidiaries taken as a whole.

6.2      OPERATIONS OF SUBSIDIARIES

         Each Subsidiary of Digital (a) is a corporation or other legal entity
duly organized, validly existing and (if applicable) in good standing under the
laws of the jurisdiction of its organization and has the full power and
authority to own its properties and conduct its business and operations as
currently conducted, except where the failure to be duly organized, validly
existing and in good standing does not have, and would not be reasonably
expected (so far as can be foreseen at the time) to have, a material adverse
effect on the business, properties, operations, condition (financial or other)
or, to Digital's knowledge, the prospects of Digital and its Subsidiaries taken
as a whole, (b) is duly qualified and in good standing in each jurisdiction in
which the property owned, leased or operated by it or the nature of the 


                                      -42-
<PAGE>   46
business conducted by it makes such qualification necessary, except where the
failure to be so qualified does not have, and would not be reasonably expected
(so far as can be foreseen at the time) to have, a material adverse effect on
the business, properties, operations, condition (financial or other) or, to
Digital's knowledge, the prospects of Digital and its Subsidiaries taken as a
whole, and (c) has obtained from the appropriate Governmental Bodies all
approvals and licenses necessary for the conduct of its business and operations
as currently conducted, which approvals and licenses are valid and remain in
full force and effect, except where the failure to have obtained such approvals
and licenses or the failure of such approvals and licenses to be valid and in
full force and effect does not have, and would not be reasonably expected (so
far as can be foreseen at the time) to have, a material adverse effect on the
business, properties, operations, condition (financial or other) or, to
Digital's knowledge, the prospects of Digital and its Subsidiaries taken as a
whole.

6.3      AGREEMENT

         This Agreement and the consummation of the transactions contemplated
hereby have been approved by the respective Boards of Directors of Digital and
Merger Sub and by Digital as the sole shareholder of Merger Sub, and have been
duly authorized by all other necessary corporate action on the part of each of
them (except for the approval of Digital's shareholders contemplated by Section
7.3(b)). This Agreement has been duly executed and delivered by a duly
authorized officer of each of Digital and Merger Sub and constitutes a valid and
binding agreement of Digital and Merger Sub, enforceable against Digital and
Merger Sub in accordance with its terms, except as may be limited by applicable
bankruptcy, insolvency, reorganization, moratorium and other similar laws of
general application that may affect the enforcement of creditors' rights
generally and by general equitable principles. Digital has delivered to the
Company true and correct copies of resolutions adopted by the Board of Directors
of each of Digital and Merger Sub approving this Agreement.

6.4      CAPITAL STOCK

         The authorized capital stock of Digital consists of (a) 25,000,000
Digital Common Shares and (b) 5,000,000 shares of preferred stock, $.01 par
value per share. All the outstanding Digital Common Shares are duly authorized,
validly issued, fully paid and nonassessable, and no class of capital stock of
Digital is entitled to preemptive or cumulative voting rights. As of the close
of business on September 30, 1996, 9,522,688 Digital Common Shares and no shares
of preferred stock were issued and outstanding, and since that date there have
been no further issuances of Digital Common Shares, except in connection with
the exercise of options issued pursuant to the Digital Option Plans, and except
for issuances of Digital Common Shares pursuant 


                                      -43-
<PAGE>   47
to Digital's Employee Stock Purchase Plan (the "Digital Employee Stock Purchase
Plan"). Except as disclosed in the Digital SEC Reports, all outstanding shares
of capital stock of the Subsidiaries of Digital are owned by Digital or a direct
or indirect wholly owned Subsidiary of Digital, free and clear of all liens,
charges, encumbrances, claims and options of any nature. There are outstanding
on the date hereof no options, warrants or other rights to acquire capital stock
from Digital or any of its Subsidiaries, nor are there any securities
outstanding which are directly or indirectly convertible into or exchangeable
for shares of capital stock of Digital or any of its Subsidiaries, except
options to purchase Digital Common Shares granted pursuant to the Digital Option
Plans and rights existing under the Digital Employee Stock Purchase Plan. As of
the close of business on September 30, 1996, there were 2,925,000 Digital Common
Shares reserved for issuance upon the exercise of stock options, of which
970,298 Digital Common Shares had been issued and 1,445,799 Digital Common
Shares were subject to outstanding options as of such date, and there were
52,942 Digital Common Shares reserved for issuance under the Digital Employee
Stock Purchase Plan. Digital has not declared, and no Person has any accrued
right to receive, any distribution with respect to shares of capital stock of
Digital.

6.5      AUTHORIZATION FOR DIGITAL COMMON SHARES

         Prior to the Effective Time, Digital will have taken all necessary
action to permit it to issue the number of Digital Common Shares required to be
issued pursuant to Article IV. The Digital Common Shares issued pursuant to
Article IV will, when issued, be duly authorized, validly issued, fully paid and
nonassessable, and no shareholder of Digital will have any preemptive right of
subscription or purchase in respect thereof. The Digital Common Shares will,
when issued, be registered under the Securities Act and the Exchange Act and
registered or exempt from registration under any applicable state securities
laws.

6.6      LITIGATION

         Except as disclosed in the Digital SEC Reports filed prior to the date
hereof or the Digital Disclosure Statement, there are no actions, suits,
investigations or proceedings (adjudicatory, rulemaking or otherwise) pending
or, to the knowledge of Digital, threatened against Digital or any of its
Subsidiaries, or any property of Digital or any such Subsidiary (including any
Intellectual Property), in any court or before any arbitrator of any kind or
before or by any Governmental Body, except actions, suits, investigations or
proceedings that, in the aggregate, do not have, and would not be reasonably
expected (so far as can be foreseen at the time) to have, a material adverse
effect on the (a) business, properties, operations, condition (financial or
other) 


                                      -44-
<PAGE>   48
or, to Digital's knowledge, the prospects of Digital and its Subsidiaries
taken as a whole or (b) ability of Digital to perform its obligations under this
Agreement.

6.7      COMPLIANCE WITH OTHER INSTRUMENTS, ETC.

         (a) Neither Digital nor any Subsidiary of Digital is in violation of
any term of (i) its charter, Bylaws or other organizational documents, (ii) any
agreement or instrument relate to indebtedness for borrowed money or any other
agreement to which it is a party or by which it is bound, (iii) any applicable
law, ordinance, rule or regulation of any Governmental Body, or (iv) any
applicable order, judgment or decree of any court, arbitrator or Governmental
Body, the consequences of which violation, whether individually or in the
aggregate, would have, or would be reasonably expected (so far as can be
foreseen at the time) to have, a material adverse effect on the (A) business,
properties, operations, condition (financial or other) or, to Digital's
knowledge, the prospects of Digital and its Subsidiaries taken as a whole or (B)
ability of Digital to perform its obligations under this Agreement.

         (b) The execution, delivery and performance of this Agreement by
Digital and Merger Sub and the consummation of the transactions contemplated
hereby will not (i) constitute a violation (with or without the giving of notice
or lapse of time, or both) of any provision of law or any judgment, decree,
order, regulation or rule of any court or Governmental Body applicable to
Digital or Merger Sub, (ii) require any Authorization or any consent or approval
of any nongovernmental Person, except compliance with applicable securities
laws, the approval of the shareholders of each of the Company and Digital and
the filing of all documents necessary to consummate the Merger with the
Washington Secretary of State and the California Secretary of State (all such
Authorizations and other consents or approvals to be duly obtained at or prior
to the Closing), (iii) result in a default (with or without the giving of notice
or lapse of time, or both) under, acceleration or termination of, or the
creation in any party of the right to accelerate, terminate, modify or cancel,
any agreement, lease, note or other restriction, encumbrance, obligation or
liability to which Digital or Merger Sub is a party or by which it is bound or
to which any assets of the Company are subject, (iv) result in the creation of
any lien or encumbrance upon the assets of Digital or Merger Sub or upon any
outstanding securities of Digital or Merger Sub, (v) conflict with any provision
of the charter or Bylaws of Digital or Merger Sub, or (vi) invalidate or
adversely affect any permit, license, authorization or status used in the
conduct of Digital's business.

6.8      TAXES

         Digital and its Subsidiaries have filed all Tax Returns required to be
filed by them, and have paid all Taxes shown to be due thereon, other than Taxes
appropriate 



                                      -45-
<PAGE>   49
reserves for which have been made in the Digital Financial Statements (and, to
the extent material, such reserves have been accurately described to the
Company). There are no assessments or adjustments for Taxes that have been
asserted in writing against Digital or its Subsidiaries for any period for which
Digital has not made appropriate reserves in the Digital Financial Statements.

6.9      INTELLECTUAL PROPERTY

         Digital and its Subsidiaries own, or have the defensible right to use,
all Intellectual Property used in Digital's business, except where the failure
to own or have the right to use such Intellectual Property, in the aggregate,
would not be reasonably expected (so far as can be foreseen at the time) to have
a material adverse effect on the business, properties, operations, condition
(financial or other) or, to Digital's knowledge, the prospects of Digital and
its Subsidiaries taken as a whole. To Digital's knowledge, neither Digital's
operations nor any of its Intellectual Property or Intellectual Property
Licenses infringe or provide any basis to believe that its operations or any of
its Intellectual Property or Intellectual Property Licenses would infringe upon
any validly issued or pending trademark, trade name, service mark, copyright or,
to Digital's knowledge, any validly issued or pending patent or other right of
any other Person, nor, to Digital's knowledge, is there any infringement by any
other Person of any of Digital's Intellectual Property or of any other
intellectual property to which Digital's Intellectual Property Licenses relate.

6.10     REPORTS AND FINANCIAL STATEMENTS

         Digital has timely filed all reports (including, without limitation,
proxy statements) required to be filed with the SEC since January 1, 1993
(collectively, the "Digital SEC Reports"), and has previously furnished or made
available to the Company true and complete copies of all Digital SEC Reports.
None of the Digital SEC Reports, as of their respective dates (as amended
through the date hereof), contained any untrue statement of a material fact or
omitted to state a material fact required to be stated therein or necessary to
make the statements therein, in light of the circumstances under which they were
made, not misleading. Each of the balance sheets (including the related notes)
included in the Digital SEC Reports presents fairly, in all material respects,
the consolidated financial position of Digital and its Subsidiaries as of the
respective date thereof, and the other related financial statements (including
the related notes) included therein present fairly, in all material respects,
the results of operations and the cash flows of Digital and its Subsidiaries for
the respective periods or as of the respective dates set forth therein, all in
conformity with generally accepted accounting principles consistently applied
during the periods involved, except as otherwise noted therein and subject, in
the case of the unaudited 


                                      -46-
<PAGE>   50
interim financial statements, to normal year-end adjustments and any other
adjustments described therein. Digital has no liabilities or financial
obligations (absolute, contingent or otherwise) required to be disclosed in its
financial statements or the notes thereto in accordance with generally accepted
accounting principles which are not fully reflected or reserved against in the
unaudited balance sheet contained in its report on Form 10-Q for the quarter
ended June 30, 1996, except such liabilities or obligations that would not be
reasonably expected (so far as can be foreseen at the time) to have a material
adverse effect on the business, properties, operations, condition (financial or
other) or, to Digital's knowledge, the prospects of Digital and its Subsidiaries
taken as a whole. All of the Digital SEC Reports, as of their respective dates
(as amended through the date hereof), complied in all material respects with the
requirements of the Exchange Act and the applicable rules and regulations
thereunder.

6.11     ABSENCE OF CERTAIN CHANGES OR EVENTS

         During the period since December 31,1995, and except as disclosed in
the Digital SEC Reports, (a) the business of Digital has been conducted only in
the ordinary course, consistent with past practice, (b) Digital has not entered
into any material transaction other than in the ordinary course of business and
consistent with past practice, and (c) there has not been any material adverse
change in the business, properties, operations, condition (financial or other),
assets, liabilities or, to Digital's knowledge, the reasonably foreseeable
prospects of Digital and its Subsidiaries taken as a whole (other than as a
result of economic or political developments of general applicability).

6.12     CONTRACTS AND LEASES

         The Digital SEC Reports contain an accurate and complete list of all
material contracts, leases, agreements or understandings, whether written or
oral, required to be described therein or filed as exhibits thereto pursuant to
the Exchange Act and the applicable rules and regulations thereunder. Each of
such contracts, leases, agreements and understandings is in full force and
effect and is valid, binding and enforceable in accordance with its terms
against each party thereto, and (a) none of Digital or its Subsidiaries or, to
Digital's knowledge, any other party thereto has breached any of the above or is
in default thereunder, (b) no event has occurred which, with notice or lapse of
time, or both, would constitute such a breach or default, (c) no claim of
material default thereunder has, to Digital's knowledge, been asserted or
threatened, and (d) none of Digital or its Subsidiaries or, to Digital's
knowledge, any other party thereto is seeking the termination or renegotiation
thereof or substitute performance thereunder, except where such breach or
default, or attempted 


                                      -47-
<PAGE>   51
termination, renegotiation or substitute performance, individually or in the
aggregate, would not be reasonably expected (so far as can be foreseen at the
time) to have a material adverse effect on the business, properties, operations,
condition (financial or other) or, to Digital's knowledge, the prospects of
Digital and its Subsidiaries taken as a whole.

6.13     OWNERSHIP OF MERGER SUB; NO PRIOR ACTIVITIES; ASSETS OF MERGER SUB

         (a) Merger Sub was formed by Digital solely for the purpose of engaging
in the transactions contemplated hereby.

         (b) As of the date hereof and at the Effective Time, the capital stock
of Merger Sub is and will be owned 100% by Digital directly. There are not as of
the date hereof and there will not be at the Effective Time any outstanding or
authorized options, warrants, calls, rights, commitments or any other agreements
of any character which Merger Sub is a party to, or may be bound by, requiring
it to issue, transfer, sell, purchase, redeem or acquire any shares of capital
stock or any securities or rights convertible into, exchangeable for, or
evidencing the right to subscribe for or acquire, any shares of capital stock of
Merger Sub.

         (c) As of the date hereof and at the Effective Time, except for
obligations or liabilities incurred in connection with its incorporation or
organization and the transactions contemplated thereby and hereby, Merger Sub
has not and will not have incurred, directly or indirectly through any
Subsidiary or Affiliate, any obligations or liabilities or engaged in any
business or activities of any type or kind whatsoever or entered into any
agreements or arrangements with any Person.

         (d) Digital will take all action necessary to ensure that Merger Sub at
no time prior to the Effective Time owns any asset other than an amount of cash
necessary to incorporate Merger Sub and to pay the expenses of the Merger
attributable to Merger Sub if the Merger is consummated.

6.14     BROKERS AND FINDERS

         Except for the fees and expenses payable to Dain Bosworth, Inc.,
Digital has not employed any investment banker, broker, finder, consultant or
intermediary in connection with the transactions contemplated by this Agreement
which would be entitled to any investment banking, brokerage, finder's or
similar fee or commission in connection with this Agreement or the transactions
contemplated hereby.


                                      -48-
<PAGE>   52
6.15     S-4 REGISTRATION STATEMENT AND PROXY STATEMENT/PROSPECTUS

         None of the information supplied or to be supplied by Digital or Merger
Sub for inclusion or incorporation by reference in the S-4 Registration
Statement or the Proxy Statement/Prospectus will (a) in the case of the S-4
Registration Statement, at the time it becomes effective, 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 light of
the circumstances under which they were made, not misleading or (b) in the case
of the Proxy Statement/Prospectus, at the time of mailing the Proxy
Statement/Prospectus, at the time of the Digital Shareholders Meeting and at the
time consents of the Company's shareholders are obtained, 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 light of
the circumstances under which they are made, not misleading. If at any time
prior to the Effective Time any event with respect to Digital, its officers and
directors or any of its Subsidiaries shall occur that is required to be
described in an amendment of, or a supplement to, the Proxy Statement/Prospectus
or the S-4 Registration Statement, Digital shall notify the Company thereof by
reference to this Section 6.15 and, in the case of the Proxy
Statement/Prospectus or the S-4 Registration Statement, such event shall be so
described, and an amendment or supplement shall be promptly filed with the SEC
and, as required by law, disseminated to the shareholders of Digital and the
Company, and such amendment or supplement shall comply with all provisions of
applicable law. The S-4 Registration Statement will comply (with respect to
Digital and Merger Sub) as to form in all material respects with the provisions
of the Securities Act. The Proxy Statement/Prospectus will comply (with respect
to Digital and Merger Sub) in all material respects with the requirements of the
Exchange Act and the applicable rules and regulations thereunder.

6.16     TAX MATTERS

         The representations set forth in the numbered paragraphs of the form of
Tax Matters Certificate of Digital attached hereto as Exhibit 6.16 (the "Digital
Tax Matters Certificate") are true and correct in all respects, and such
representations are hereby incorporated herein by reference with the same effect
as if set forth herein in their entirety.

6.17     CUSTOMERS AND SUPPLIERS

         The Digital Disclosure Statement sets forth (a) a complete and accurate
list of the customers of Digital accounting for 5% or more of Digital's sales
during the fiscal year last ended, showing the approximate total sales by
Digital to each such customer during the fiscal year last ended and the
nine-month period ended September 30, 


                                      -49-
<PAGE>   53
1996, and (b) a complete and accurate list of the suppliers of Digital from whom
Digital has purchased 5% or more of the goods or services purchased by Digital
in the fiscal year last ended. Digital has no reasonable basis to expect any
material modification to its relationship with any customer or supplier named in
the Digital Disclosure Statement.

6.18     ORDERS, COMMITMENTS AND RETURNS

         Digital Disclosure Statement contains an accurate summary of Digital's
total backlog of orders (including all accepted and unfulfilled sales orders)
and the aggregate of all outstanding purchase orders issued by Digital (which
include all contracts or commitments for the purchase by Digital of materials or
other supplies). All such sale and purchase commitments were made in the
ordinary course of business. Except as set forth in Digital Disclosure
Statement, there are no outstanding material claims against Digital to return
products by reason of alleged failure to conform to customer expectations,
defective products, missed delivery dates or otherwise, or of products in the
possession of customers under an understanding that such products would be
returnable.

6.19     POOLING MATTERS

         Digital has not taken any action, or become aware of any action taken
by any shareholder of Digital, involving any recapitalization or repurchase or
redemption of any securities of Digital, or any grant or acceleration of any
options to acquire securities of Digital, or any purchase or sale of securities
of the Company, and to Digital's knowledge there have occurred no other events
with respect to or involving Digital or its shareholders that, taken
individually or together, would, to Digital's knowledge, affect the ability of
Digital to account for the transactions contemplated by this Agreement as a
"pooling of interests" transaction in accordance with generally accepted
accounting principles, and Digital is not aware of any facts, excluding actions
by the Company, that otherwise could prevent such accounting treatment.

6.20     FULL DISCLOSURE

         The Digital Financial Statements, the S-3 Registration Statement and
all information in the Digital Disclosure Statement and the Exhibits hereto do
not contain any untrue statement of a material fact or omit to state a material
fact necessary in order to make the statements so made or information so
delivered not misleading and, to Digital's knowledge, no other information
furnished by Digital to the Company or its representatives in connection with
this Agreement contains any untrue statement of a material fact or omits to
state a material fact necessary in order to make the statements so made or
information so delivered not misleading,


                                      -50-
<PAGE>   54
                                   ARTICLE VII

                       ADDITIONAL COVENANTS AND AGREEMENTS

7.1      CONDUCT OF BUSINESS OF THE COMPANY

         Except as contemplated by this Agreement or as set forth in the Company
Disclosure Statement, during the period from the date of this Agreement to the
Effective Time, (a) the Company will conduct its operations according to its
ordinary course of business and consistent with past practice, (b) the Company
will not enter into any material transaction other than in the ordinary course
of business and consistent with past practice, and (c) to the extent consistent
with the foregoing, with no less diligence and effort than would be applied in
the absence of this Agreement, the Company will seek to preserve intact its
current business organizations, keep available the services of its current
officers and employees and preserve its relationships with customers, suppliers
and others having business dealings with it with the objective that their
goodwill and ongoing businesses shall be unimpaired at the Effective Time.
Without limiting the generality of the foregoing, and except as otherwise
permitted in this Agreement, prior to the Effective Time, the Company will not
without the prior written consent of Digital:

         (a) except for Shares issued upon exercise of Options and Warrants
outstanding as of the date hereof, issue, deliver, sell, dispose of, pledge or
otherwise encumber, or authorize or propose the issuance, delivery, sale,
disposition or pledge or other encumbrance of (i) any additional shares of its
capital stock of any class (including the Shares), or any securities or rights
convertible into, exchangeable for or evidencing the right to subscribe for any
shares of its capital stock, or any rights, warrants, options, calls,
commitments or any other agreements of any character to purchase or acquire any
shares of its capital stock or any securities or rights convertible into,
exchangeable for or evidencing the right to subscribe for any shares of its
capital stock, or (ii) any other securities in respect of, in lieu of or in
substitution for Shares outstanding on the date hereof;

         (b) except for shares of Restricted Stock that the Company is required
to repurchase in accordance with the terms of the applicable Restricted Stock
Agreement, redeem, purchase or otherwise acquire, or propose to redeem, purchase
or otherwise acquire, any of its outstanding securities (including the Shares);

         (c) split, combine, subdivide or reclassify any shares of its capital
stock or declare, set aside for payment or pay any dividend, or make any other
actual, constructive or deemed distribution in respect of any shares of its
capital stock or 


                                      -51-
<PAGE>   55
otherwise make any payments to the Company's shareholders in their capacity as
such;

         (d) (i) grant any material increases in the compensation of any of its
directors, officers or key employees, except in the ordinary course of business
and consistent with past practice, (ii) pay or agree to pay any pension,
retirement allowance or other material employee benefit not required or
contemplated by any Employee Benefit Plan as in effect on the date hereof to any
such director, officer or key employee, whether past or present, (iii) enter
into any new, or materially amend any existing, employment agreement with any
such director, officer or key employee, (iv) enter into any new, or materially
amend any existing, severance agreement with any such director, officer or key
employee, or (v) except as may be required to comply with applicable law, amend
any existing, or become obligated under any new, Employee Benefit Plan;

         (e) adopt a plan of complete or partial liquidation, dissolution,
merger, consolidation, restructuring, recapitalization or other reorganization
of the Company (other than the Merger);

         (f) make any acquisition, by means of merger, consolidation or
otherwise, of (i) any direct or indirect ownership interest in or assets
comprising any business enterprise or operation or (ii) except in the ordinary
course of business and consistent with past practice, any other assets in excess
of $50,000;

         (g) adopt any amendments to its Articles of Incorporation or Bylaws;

         (h) incur any indebtedness for borrowed money or guarantee any such
indebtedness or, except in the ordinary course of business and consistent with
past practice, make any loans, advances or capital contributions to, or
investments in, any other Person;

         (i) engage in the conduct of any business the nature of which is
materially different than the business the Company is currently engaged in;

         (j) enter into any agreement providing for acceleration of payment or
performance or other consequence as a result of a change of control of the
Company or its Subsidiaries;

         (k) enter into any contract, arrangement or understanding requiring the
purchase of equipment, materials, supplies or services over a period greater
than 12 months and for the expenditure of greater than $75,000 per year which is
not 


                                      -52-
<PAGE>   56
cancelable without penalty on 30 days' or less notice, except in the
ordinary course of business for the distribution of products or the production
of inventory; or

         (l) authorize or announce an intention to do any of the foregoing, or
enter into any contract, agreement, commitment or arrangement to do any of the
foregoing.

7.2      NO SOLICITATIONS

         (a) The Company shall not, directly or indirectly, through any officer,
director, employee, representative or agent of the Company or any of its
Subsidiaries, solicit or encourage the initiation of any inquiries or proposals
regarding any merger, sale of substantial assets, sale of shares of capital
stock (including, without limitation, by way of a tender offer) or similar
transactions involving the Company or any of its Subsidiaries (any of the
foregoing inquiries or proposals being referred to herein as an "Acquisition
Proposal"); provided, however, that nothing contained in this Agreement shall
prevent the Board of Directors of the Company from referring any third party to
this Section 7.2 or from making a copy of this Section 7.2 available to any
third party. Nothing contained in this Section 7.2 shall prevent the Board of
Directors of the Company from considering, negotiating, approving and
recommending to the shareholders of the Company (after consulting with its
financial advisors, and determining after consulting with counsel that the Board
of Directors is required to do so in order to discharge properly its fiduciary
duties) an unsolicited bona fide Acquisition Proposal which the Board of
Directors determines in good faith would result in a transaction more favorable
to the Company's shareholders from a financial point of view than the
transaction contemplated by this Agreement (any such Acquisition Proposal being
referred to herein as a "Superior Proposal").

         (b) The Company shall immediately notify Digital after receipt of any
Acquisition Proposal or any request for nonpublic information relating to the
Company or any of its Subsidiaries in connection with an Acquisition Proposal or
for access to the properties, books or records of the Company or any of its
Subsidiaries by any Person that informs the Board of Directors of the Company or
such Subsidiary that it is considering making, or has made, an Acquisition
Proposal. Such notice to Digital shall be made orally and in writing and shall
indicate in reasonable detail the identity of the offeror and the terms and
conditions of such proposal, inquiry or contact.

         (c) If the Board of Directors of the Company receives a request for
material nonpublic information by a party who makes a bona fide Acquisition
Proposal and the Board of Directors of the Company determines that such proposal
is a Superior Proposal then, and only in such case, the Company may, subject to
the execution of a confidentiality and standstill agreement substantially
similar to that then in effect 


                                      -53-
<PAGE>   57
between the Company and Digital, provide such party with access to information
regarding the Company.

         (d) The Company shall immediately cease and cause to be terminated any
existing discussions or negotiations with any parties (other than Digital and
Merger Sub) conducted heretofore with respect to any of the foregoing. The
Company agrees not to release any third party from any confidentiality or
standstill agreement to which the Company is a party.

         (e) The Company shall ensure that the officers, directors and employees
of the Company and its Subsidiaries, and any investment banker or other advisor
or representative retained by the Company, are aware of the restrictions
described in this Section 7.2.

7.3      CONSENT SOLICITATION AND MEETING OF SHAREHOLDERS

         (a) The Company will take all action necessary in accordance with
applicable law and its Articles of Incorporation and Bylaws to prepare and
circulate to its Shareholders as promptly as practicable forms of written
consent and related materials (the "Company Consent Solicitation") soliciting
such Shareholders' approval of the Merger. Subject to the fiduciary duties of
the Company's Board of Directors under applicable law as advised by counsel, the
Board of Directors of the Company shall recommend and declare advisable such
approval, and the Company shall take all lawful action to solicit, and use all
reasonable efforts to obtain, such approval. Pursuant to the terms of the
shareholders agreement attached hereto as Exhibit 7.3 (the "Shareholders
Agreement"), the Company Affiliates each have agreed to vote all Shares owned by
them or over which they have voting control, or to execute or cause to be
executed consents, to grant their approval of the Merger and this Agreement.

         (b) Digital will take all action necessary in accordance with
applicable law, Rule 4460 of the Rules of the Nasdaq/NM, and Digital's Articles
of Incorporation and Bylaws to convene a meeting of its shareholders (the
"Digital Shareholders Meeting") as promptly as practicable to consider and vote
upon the approval of the issuance of Digital Common Shares in the Merger (the
"Issuance") and the approval of the Digital Stock Incentive Plan. Subject to the
fiduciary duties of Digital's Board of Directors under applicable law as advised
by counsel, the Board of Directors of Digital shall recommend and declare
advisable such approvals and Digital shall take all lawful action to solicit,
and use all reasonable efforts to obtain, such approval. Pursuant to the terms
of the Shareholders Agreement, the directors of Digital executing such agreement
each have agreed to vote all Digital Common Shares owned by them or to which
they have the right to vote in favor of approval of the Issuance.


                                      -54-
<PAGE>   58
         (c) Digital, as the sole shareholder of Merger Sub, will act by written
consent to approve the Merger and the adoption of this Agreement by Merger Sub,
which consent Digital and Merger Sub represent and warrant will constitute the
requisite approval of the Merger and this Agreement by Merger Sub.

7.4      REGISTRATION STATEMENT/PROXY MATERIALS

         Digital and the Company will, as promptly as practicable, prepare and
file with the SEC preliminary proxy materials (requesting confidential treatment
thereof) that will constitute a proxy statement in connection with the vote of
Digital's shareholders with respect to the Issuance and the Digital Stock
Incentive Plan, and the Company Consent Solicitation in connection with the vote
of the Company's shareholders with respect to the Merger, together with any
amendments thereof or supplements thereto (in each case, in the form or forms
mailed to Digital's and the Company's shareholders, the "Proxy
Statement/Prospectus"). Digital will also prepare and file with the SEC a
registration statement on Form S-4 (the "S-4 Registration Statement"),
containing the Proxy Statement/Prospectus, in connection with the registration
under the Securities Act of the Digital Common Shares issuable upon conversion
of the Shares and the other transactions contemplated hereby. The S-4
Registration Statement will contain pro forma financial statements accounting
for the Merger as a pooling of interests (unless Digital shall have irrevocably
and unconditionally waived in writing the condition set forth in Section
8.2(f)). Digital and the Company will use all reasonable efforts to have the S-4
Registration Statement declared effective as promptly as practicable, and also
will take any other action required to be taken under federal or state
securities laws, and will use all reasonable efforts to cause the Proxy
Statement/Prospectus to be mailed to shareholders of Digital and the Company at
the earliest practicable date. If at any time prior to the Effective Time any
event relating to or affecting the Company or Digital shall occur as a result of
which it is necessary, in the opinion of counsel for the Company or of counsel
for Digital, to supplement or amend the S-4 Registration Statement in order to
make such document not misleading in light of the circumstances existing at the
time approval of the shareholders of the Company or of Digital is sought, the
Company and Digital will forthwith prepare and file with the SEC an amendment or
supplement to the S-4 Registration Statement so that such document, as so
supplemented or amended, will not contain any untrue statement of a material
fact or omit to state any material fact necessary in order to make the
statements therein, in light of the circumstances existing at such time, not
misleading.


                                      -55-
<PAGE>   59
7.5      S-3 REGISTRATION STATEMENT

         If necessary to ensure that the Merger will qualify for
pooling-of-interests accounting treatment, Digital will (a) as promptly as
practicable, prepare and file with the SEC a registration statement on Form S-3
(the "S-3 Registration Statement"), containing a prospectus in connection with
the registration and sale of a number of Digital Common Shares that it estimates
to be sufficient to ensure that all requirements for pooling-of-interests
accounting treatment will be satisfied and (b) prior to the Closing, sell the
actual number of such Digital Common Shares that it determines, in consultation
with KPMG Peat Marwick LLP, will be sufficient to ensure that such requirements
are satisfied. Digital will use all reasonable efforts to have the S-3
Registration Statement declared effective as promptly as practicable. If at any
time prior to the Effective Time any event relating to or affecting Digital
shall occur as a result of which it is necessary, in the opinion of counsel for
Digital, to supplement or amend the S-3 Registration Statement in order to make
such document not misleading in light of the circumstances existing at the time
approval of the shareholders of the Company or of Digital is sought, Digital
will forthwith prepare and file with the SEC an amendment or supplement of the
S-3 Registration Statement so that such document, as so supplemented or amended,
will not contain any untrue statement of a material fact or omit to state any
material fact necessary in order to make the statements therein, in light of the
circumstances existing at such time, not misleading.

7.6      REASONABLE EFFORTS

         The Company and Digital shall, and shall use all reasonable efforts to
cause their respective Subsidiaries to: (a) promptly make all filings and seek
to obtain all Authorizations required under all applicable laws with respect to
the Merger and the other transactions contemplated hereby and will cooperate
with each other with respect thereto; (b) use all reasonable efforts to promptly
take, or cause to be taken, all other actions and do, or cause to be done, all
other things necessary, proper or appropriate to satisfy the conditions set
forth in Article VIII and to consummate and make effective the transactions
contemplated by this Agreement on the terms and subject to the conditions set
forth herein as soon as practicable (including seeking to remove promptly any
injunction or other legal barrier that may prevent such consummation); (c) not
take any action which might reasonably be expected to impair the ability of the
parties to consummate the Merger at the earliest possible time (regardless of
whether such action would otherwise be permitted or not prohibited hereunder);
and (d) not take any action (regardless of whether such action would otherwise
be permitted or not prohibited hereunder) that prevents Digital from accounting
for the Merger as a pooling of interests. After the time, if any, that the S-4


                                      -56-
<PAGE>   60
Registration Statement shall have been declared effective, Digital shall
promptly notify the Company if at any time it has reason to believe that KPMG
Peat Marwick LLP will not be able to deliver the opinion referred to in Section
8.2(f) at the Closing, and each of Digital and the Company shall promptly advise
the other of any fact or circumstance of which it becomes aware (and which has
not theretofore been disclosed to the other) which it believes would adversely
impact the ability to satisfy such condition set forth in Section 8.2(f). During
the period of 60 days prior to the Closing, Digital will not repurchase or
otherwise acquire in the public market, or announce any intention or proposal to
repurchase or otherwise acquire in the public market, any shares of its capital
stock.

7.7      ACCESS TO INFORMATION

         Subject to currently existing contractual and legal restrictions
applicable to the Company (which the Company represents and warrants are not
material) or to Digital (which Digital represents and warrants are not
material), and upon reasonable notice, each of the Company and Digital shall
(and shall cause each of its Subsidiaries to) afford to officers, employees,
counsel, accountants and other authorized representatives of the other party
(the "Respective Representatives") access, during normal business hours
throughout the period prior to the Effective Time or until this Agreement is
terminated, to its properties, books and records (including, without limitation,
the work papers of independent accountants) and, during such period, shall (and
shall cause each of its Subsidiaries to) furnish promptly to such Respective
Representatives all information concerning its business, properties and
personnel as may reasonably be requested, provided that no investigation
pursuant to this Section 7.7 shall affect or be deemed to modify any of the
respective representations or warranties made by Digital or the Company. The use
and protection of all information provided by one party to the other pursuant to
this Section 7.7 shall be governed by the Confidentiality Agreement.

7.8      INDEMNIFICATION OF DIRECTORS AND OFFICERS

         (a) From and after the Effective Time, Digital shall, and shall cause
the Surviving Corporation to, indemnify, defend and hold harmless the present
and former officers, directors and employees of the Company, whether any such
person is or was an officer, director, employee or agent of the Company, or is
or was serving at the request of the Company as an officer, director or employee
or agent of another Person (collectively, the "Company Indemnitees"), against
all losses, expenses, claims, damages or liabilities arising out of actions or
omissions occurring at or prior to the Effective Time (including, without
limitation, the transactions contemplated by this Agreement) to the fullest
extent permitted or required under applicable law (and shall 


                                      -57-
<PAGE>   61
also advance expenses as incurred to the fullest extent permitted under
applicable law, provided that the person to whom expenses are advanced provides
an undertaking to repay such advances if it is ultimately determined in a final
and binding decision by a court or arbitrator that such person is not entitled
to indemnification). Digital and Merger Sub agree that all rights to
indemnification, including provisions relating to advances of expenses incurred
in defense of any action, suit or proceeding, whether civil, criminal,
administrative or investigative (each, a "Company Claim"), existing in favor of
the Company Indemnitees as provided in the Company's Articles of Incorporation
or Bylaws, as in effect as of the date hereof, with respect to matters occurring
through the Effective Time, shall survive the Merger and shall continue in full
force and effect for a period of not less than six years from the Effective
Time; provided, however, that all rights to indemnification in respect of any
Company Claim asserted, made or commenced within such period shall continue
until the final disposition of such Company Claim.

         (b) In the event that any action, suit, proceeding or investigation
relating hereto or to the transactions contemplated by this Agreement is
commenced, whether before or after the Closing, the parties hereto agree to
cooperate and use their respective reasonable efforts to vigorously defend
against the above and respond thereto.

         (c) If a Company Indemnitee is successful with respect to any action,
suit or proceeding initiated by such Company Indemnitee to enforce the
provisions of this Section 7.8, then Digital shall pay all reasonable,
out-of-pocket expenses (including, without limitation, reasonable attorneys
fees) incurred by such Company Indemnitee in connection with such action, suit
or proceeding.

         (d) This Section 7.8 is intended to benefit the Company Indemnitees and
shall be binding on all successors and assigns of Digital, Merger Sub, the
Company and the Surviving Corporation.

7.9      QUOTATION OF DIGITAL COMMON SHARES

         Digital will use all reasonable efforts to cause the Digital Common
Shares to be issued pursuant to this Agreement, and upon exercise of the
Replacement Options, to be quoted for trading on the Nasdaq/NM.

7.10     AFFILIATES OF DIGITAL AND THE COMPANY

         Set forth in the Company Disclosure Statement are the names of all
Persons who may be deemed to be "affiliates" of the Company for purposes of Rule
145 under the Securities Act (the "Company Affiliates"). Each such Company
Affiliate has 


                                      -58-
<PAGE>   62
executed the Shareholders Agreement, which provides that such Company Affiliate
will not sell, pledge, transfer or otherwise dispose of any Digital Common
Shares issued to such Company Affiliate pursuant to the Merger, except pursuant
to an effective registration statement or in compliance with Rule 145 or an
exemption from the registration requirements of the Securities Act. Each of
Digital and the Company shall use all reasonable efforts to cause their
respective Affiliates not to take any action that would impair Digital's ability
to account for the Merger as a pooling of interests. In accordance with the
foregoing, each Company Affiliate and each Affiliate of Digital has also agreed
in such written agreement that such Person will not, after the thirtieth day
prior to the Effective Time, sell or in any other way reduce such Person's risk
relative to any Digital Common Shares received in the Merger or otherwise held
by such Person (within the meaning of the SEC's Codification of Financial
Reporting Policies Section 201.01, reprinted in 7 Fed. Sec. L. Rep. (CCH)
Paragraph 72,951) until such time as results covering at least 30 days of
combined operations of Digital and the Company (which financial results Digital
agrees to publish in accordance with past practice) have been published by
Digital, in the form of a quarterly earnings report, an effective registration
statement filed with the SEC, a report to the SEC on Form 10-K, 10-Q or 8-K, or
any other public filing or press release or other announcement which includes
the combined sales and net income of Digital and the Company, except for
certain transactions permitted by the Shareholders Agreement.

7.11     CERTAIN COVENANTS OF DIGITAL

         Except as otherwise permitted in this Agreement, prior to the Effective
Time, Digital will not, without the prior written consent of the Company:

         (a) except for Digital Common Shares issued under the Digital Employee
Stock Purchase Plan or upon exercise of options granted under the Digital Option
Plans, and except for option grants under the Digital Option Plans, issue,
deliver, sell, dispose of, pledge or otherwise encumber, or authorize or propose
the issuance, delivery, sale, disposition or pledge or other encumbrance of (i)
any additional shares of its capital stock of any class, or any securities or
rights convertible into, exchangeable for, or evidencing the right to subscribe
for any shares of its capital stock, or any rights, warrants, options, calls,
commitments or any other agreements of any character to purchase or acquire any
shares of its capital stock or any securities or rights convertible into,
exchangeable for, or evidencing the right to subscribe for any shares of its
capital stock or (ii) any other securities in respect of, in lieu of, or in
substitution for, Digital Common Shares outstanding on the date hereof;

         (b) redeem, purchase or otherwise acquire, or propose to redeem,
purchase or otherwise acquire, any of its outstanding securities;


                                      -59-
<PAGE>   63
         (c) split, combine, subdivide or reclassify any shares of its capital
stock or declare, set aside for payment or pay any dividend, or make any other
actual, constructive or deemed distribution in respect of any shares of its
capital stock or otherwise make any payments to Digital's shareholders in their
capacity as such;

         (d) adopt a plan of complete or partial liquidation, dissolution,
merger or consolidation, restructuring, recapitalization or other reorganization
of Digital (other than the Merger);

         (e) make any acquisition, by means of merger, consolidation or
otherwise, of (i) any direct or indirect ownership interest in or assets
comprising any business enterprise or operation or (ii) except in the ordinary
course of business and consistent with past practice, any other assets;
provided, however, that this covenant shall not restrict any acquisition of
assets the value of which is less than 10% of Digital's total assets;

         (f) adopt any amendments to its Articles of Incorporation, or take any
other action requiring a vote of the holders of Digital Common Shares, which
would adversely affect the terms and provisions of the Digital Common Shares or
the rights of the holders of such shares, including, without limitation, the
authorization or issuance of any shares of capital stock with rights superior to
the Digital Common Shares; or

         (g) authorize or announce an intention to do any of the foregoing, or
enter into any contract, agreement, commitment or arrangement to do any of the
foregoing.

7.12     TAX MATTERS

         Neither the Company nor Digital shall take any action that would cause
its representations set forth in Sections 5.16 and 6.16 not to be true in all
material respects from and after the date hereof until the Effective Time. Each
party agrees to report the Merger on all tax returns and other filings as a
tax-free reorganization under Section 368(a) of the Code except where, in the
opinion of tax counsel to such party, there is not "substantial authority," as
defined in Section 6662 of the Code, to support such a position.

7.13     S-1 REGISTRATION STATEMENT

         The Company shall withdraw the S-1 Registration Statement prior to the
Closing Date.


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<PAGE>   64
7.14     WARRANTS

         The Company shall provide the holders of outstanding Warrants with
timely notice of the approval of the Merger in accordance with the terms of the
Warrants.

7.15     TERMINATION OF AGREEMENTS

         All outstanding agreements under which the Company is required to
register Shares shall be terminated, or amended in a manner acceptable to
Digital, in each case in accordance with their respective terms and effective as
of the Effective Time.

7.16     BOARD REPRESENTATION

         At or prior to the Closing, Digital's Board of Directors shall appoint
Kamran Kheirolomoom to serve as a director of Digital effective as of the
Effective Time. In addition, prior to the Effective Time, the Company and
Digital shall identify one additional director (the "Designee") to serve as a
director of Digital effective as of the Effective Time or as soon as practicable
thereafter. Digital shall take all requisite action to amend its Bylaws, if
necessary, to increase the size of its Board of Directors in order to effect the
appointments contemplated by this Section 7.16. In connection with the first
annual meeting of Digital shareholders following the Effective Time, Digital
will nominate Mr. Kheirolomoom and the Designee to serve as directors of Digital
for terms to be determined by Digital.

7.17     NOTICE TO COMPANY SHAREHOLDERS

         Promptly upon receipt of the approval required by Section 8.1(a)
through the Company Consent Solicitation or otherwise, the Company will deliver
to its shareholders the notices required by Chapter 13 of the CCC (after
consultation with Digital and Digital's reasonable agreement to any Share
valuation required to be included in such notice), thereby commencing the 30-day
period for receipt of notice from any dissenting shareholder. The Company will
continue to use its reasonable best efforts to solicit consents from
shareholders and otherwise to identify any dissenting shareholders prior to
completion of such 30-day period.

7.18     DIGITAL NOTICE OF CERTAIN EVENTS

         Digital shall immediately notify the Company after receipt of any
inquiries or proposals regarding any merger, sale of substantial assets, sale of
shares of capital stock other than pursuant to the S-3 Registration Statement
(including, without limitation, by way of a tender offer) or similar transaction
involving Digital or any of its Subsidiaries (a "Digital Acquisition Proposal")
or any request for nonpublic 


                                      -61-
<PAGE>   65
information relating to Digital or any of its Subsidiaries in connection with a
Digital Acquisition Proposal or for access to the properties, books or records
of Digital or any of its Subsidiaries by any Person that informs the Board of
Directors of Digital or such Subsidiary that it is considering making, or has
made, a Digital Acquisition Proposal. Such notice to the Company shall be made
orally and in writing and shall indicate in reasonable detail the identity of
the offeror and the terms and conditions of such proposal, inquiry or contact.

                                  ARTICLE VIII

                                   CONDITIONS

8.1      CONDITIONS TO EACH PARTY'S OBLIGATIONS

         The respective obligations of each party to consummate the transactions
contemplated by this Agreement are subject to the fulfillment at or prior to the
Effective Time of each of the following conditions, any or all of which may be
waived in whole or in part by the party being benefited thereby, to the extent
permitted by applicable law:

         (a)        COMPANY SHAREHOLDER APPROVAL

         This Agreement and the transactions contemplated hereby shall have been
duly approved or ratified by the requisite holders of Shares in accordance with
applicable provisions of the CCC and the Articles of Incorporation and Bylaws of
the Company.

         (b)        DIGITAL SHAREHOLDER APPROVAL

         The Issuance shall have been duly approved by the requisite holders of
Digital Common Shares in accordance with applicable provisions of the WBCA, the
Articles of Incorporation and Bylaws of Digital and Rule 4460 of the Rules of
the Nasdaq/NM.

         (c)        AUTHORIZATIONS

         All Authorizations required in connection with the execution and
delivery of this Agreement and the performance of the obligations hereunder
shall have been made or obtained.

         (d)        NO INJUNCTION, ILLEGALITY

         There shall not be in effect any judgment, writ, order, injunction or
decree of any court or Governmental Body of competent jurisdiction restraining,
enjoining or 


                                      -62-
<PAGE>   66
otherwise preventing consummation of the transactions contemplated
by this Agreement or permitting such consummation only subject to any condition
or restriction unacceptable to either of Digital or the Company, each in its
reasonable judgment, and there shall not be any action taken, or any statute,
rule, regulation or order enacted, entered, enforced or deemed applicable to the
Merger that makes the consummation of the Merger illegal.

         (e)        REGISTRATION STATEMENT

         The S-4 Registration Statement shall have been declared effective by
the SEC under the Securities Act and shall be effective at the Effective Time.
No stop order suspending effectiveness shall have been issued by the SEC, no
action, suit, proceeding or investigation by the SEC to suspend the
effectiveness thereof shall have been initiated and be continuing, and all
necessary approvals under state securities laws or the Securities Act or
Exchange Act relating to the issuance or trading of the Digital Common Shares
shall have been received.

         (f)        TAX OPINION

         Digital and the Company shall have received an opinion of Perkins Coie
to the effect that (i) the Merger will be treated for federal income tax
purposes as a reorganization within the meaning of Section 368(a) of the Code;
(ii) each of Digital, Merger Sub and the Company will be a party to the
reorganization within the meaning of Section 368(b) of the Code; (iii) no gain
or loss will be recognized by the Company, Digital or Merger Sub as a result of
the Merger; (iv) no gain or loss will be recognized by a shareholder of the
Company as a result of the Merger with respect to the Shares converted solely
into Digital Common Shares; and (v) no gain or loss will be recognized by
Digital or holders of Options that qualify as "incentive stock options" under
the Code upon the exchange of such Options for Replacement Options. In rendering
such opinion, Perkins Coie shall receive and rely upon representations contained
in certificates of the Company, Digital, Merger Sub and certain significant
shareholders of the Company, including, without limitation, the Digital Tax
Matters Certificate and the Company Tax Matters Certificate.

8.2      CONDITIONS TO OBLIGATIONS OF DIGITAL AND MERGER SUB

         The respective obligations of Digital and Merger Sub to consummate the
transactions contemplated by this Agreement are subject to the fulfillment at or
prior to the Effective Time of each of the following conditions, any or all of
which may be waived in whole or in part by Digital and Merger Sub, as the case
may be, to the extent permitted by applicable law:


                                      -63-
<PAGE>   67
         (a)        REPRESENTATIONS AND WARRANTIES TRUE

         The representations and warranties of the Company contained in Article
V or otherwise required hereby to be made after the date hereof in a writing
expressly referred to herein by or on behalf of the Company or any Company
Affiliate pursuant to this Agreement that (i) are qualified as to materiality
shall be true and correct and (ii) are not so qualified shall be true and
correct in all material respects on and as of the date made. The Company shall
have delivered a revised Company Disclosure Statement dated one day prior to the
Closing Date, reflecting any changes that would be required in order to make the
representations and warranties of the Company contained in Article V or
otherwise required hereby to be true and correct, on and as of the Effective
Time, with the same force and effect as if made on and as of the Effective Time,
except (A) for changes contemplated by this Agreement and (B) that the accuracy
of representations and warranties which address matters only as of a particular
date will be determined as of such date.

         (b)        PERFORMANCE

         The Company shall have performed or complied in all material respects
with all agreements and conditions contained herein required to be performed or
complied with by it prior to or at the time of Closing.

         (c)        CONSENTS OBTAINED

         All material consents, waivers, approvals, authorizations or orders
required to be obtained, and all filings required to be made, by the Company for
the authorization, execution and delivery of this Agreement and the consummation
by it of the transactions contemplated hereby shall have been obtained and made
by the Company, except where the failure to receive such consents, etc. would
not have a material adverse effect on the Company or Digital.

         (d)        OFFICERS' CERTIFICATE

         The Company shall have delivered to Digital a certificate, dated the
date of the Closing, signed by the President or any Vice President of the
Company, certifying as to the fulfillment of the conditions specified in
Sections 8.2(a) through (c).

         (e)        OPINION OF COUNSEL FOR THE COMPANY

         Digital shall have received from Wilson Sonsini Goodrich & Rosati, or
other counsel for the Company satisfactory to Digital, an opinion, dated the
Closing Date, substantially in the form attached hereto as Exhibit 8.2(e).



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<PAGE>   68
         (f)        POOLING OPINION

         Digital shall have received an opinion of KPMG Peat Marwick LLP, in
form and substance reasonably satisfactory to Digital, that the Merger will
qualify for pooling-of-interests accounting treatment if consummated in
accordance with this Agreement.

         (g)        FIRPTA CERTIFICATE

         Digital shall have received a certificate from the Company pursuant to
Section 1445 of the Code (and a certificate or certificates under any analogous
provisions under state or local law) to the effect than an interest in the
Company is not a "United States real property interest" within the meaning of
Section 897 of the Code (and any analogous provisions under state or local law).

         (h)        EMPLOYMENT AGREEMENTS

         Employment agreements with the Company's officers listed in Exhibit
8.2(h) hereto, as entered into or amended and restated with the concurrence of
Digital, shall be in effect at the Effective Time.

8.3      CONDITIONS TO OBLIGATIONS OF THE COMPANY

         The obligations of the Company to consummate the transactions
contemplated by this Agreement are subject to the fulfillment at or prior to the
Effective Time of each of the following conditions, any or all of which may be
waived in whole or in part by the Company to the extent permitted by applicable
law:

         (a)        REPRESENTATIONS AND WARRANTIES TRUE

         The representations and warranties of Digital and Merger Sub contained
in Article VI or otherwise required hereby to be made after the date hereof in a
writing expressly referred to herein by or on behalf of Digital and Merger Sub
pursuant to this Agreement that (i) are qualified as to materiality shall be
true and correct and (ii) are not so qualified shall be true in all material
respects on and as of the date made. Digital shall have delivered a revised
Digital Disclosure Statement dated one day prior to the Closing Date, reflecting
any changes that would be required in order to make the representations and
warranties of Digital contained in Article VI or otherwise required hereby to be
true and correct, on and as of the Effective Time, with the same force and
effect as if made at and as of the Effective Time, except (A) for changes
contemplated by this Agreement and (B) that the accuracy of representations and


                                      -65-
<PAGE>   69
warranties which address matters only as of a particular date will be determined
as of such date.

         (b)        PERFORMANCE

         Digital shall have performed or complied in all material respects with
all agreements and conditions contained herein required to be performed or
complied with by it prior to or at the Closing.

         (c)        CONSENTS OBTAINED

         All material consents, waivers, approvals, authorizations or orders
required to be obtained, and all filings required to be made, by Digital or
Merger Sub for the authorization, execution and delivery of this Agreement and
the consummation by it of the transactions contemplated hereby shall have been
obtained and made by Digital and Merger Sub, except where the failure to receive
such consents, etc. would not have a material adverse effect on the Company or
Digital.

         (d)        OFFICERS' CERTIFICATE

         Digital shall have delivered to the Company a certificate, dated the
date of the Closing, signed by the President or any Vice President of Digital,
certifying as to the fulfillment of the conditions specified in Sections 8.3(a)
through (c).

         (e)        OPINION OF COUNSEL FOR DIGITAL

         The Company shall have received from Perkins Coie, or other counsel for
Digital satisfactory to the Company, an opinion, dated the Closing Date,
substantially in the form attached hereto as Exhibit 8.3(e).

         (f)        POOLING OPINION

         The Company shall have received a copy of the opinion referred to in
Section 8.2(f).


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<PAGE>   70
                                   ARTICLE IX

                                   TERMINATION

9.1      TERMINATION

         This Agreement may be terminated and the Merger may be abandoned at any
time prior to the Effective Time, before or after the approval by the
shareholders of the Company or Digital:

         (a) by mutual written consent duly authorized by the Boards of
Directors of Digital and the Company; or

         (b) by either Digital or the Company if the Merger shall not have been
consummated by February 15, 1997 (provided that the right to terminate this
Agreement under this Section 9.1(b) shall not be available to any party whose
breach of any representation, warranty, covenant or agreement set forth in this
Agreement has been the cause of or resulted in the failure of the Merger to
occur on or before such date); or

         (c) by either Digital or the Company if a court of competent
jurisdiction or Governmental Body shall have issued a nonappealable final order,
decree or ruling or taken any other action, in each case having the effect of
permanently restraining, enjoining or otherwise prohibiting the Merger, except
if the party relying on such order, decree or ruling or other action has not
complied with its obligations under Section 7.6; or

         (d) by Digital or the Company if, at either the Digital Shareholders
Meeting (including any adjournment or postponement thereof), or pursuant to the
Company Consent Solicitation, the requisite vote of the shareholders of Digital
or the Company shall not have been obtained; or

         (e) by Digital if (i) the Board of Directors of the Company shall fail
to recommend or withdraw, modify or change its recommendation of this Agreement
or the Merger in a manner adverse to Digital or shall have resolved to do any of
the foregoing; (ii) the Board of Directors of the Company shall have recommended
to the shareholders of the Company an Alternative Transaction; or (iii) a tender
offer or exchange offer for 25% or more of the outstanding shares of Company
voting stock is commenced (other than by Digital or an Affiliate of Digital) and
the Board of Directors of the Company recommends that the shareholders of the
Company tender their shares in such tender offer or exchange offer; or


                                      -67-
<PAGE>   71
         (f) by Digital, upon a breach of any representation, warranty, covenant
or agreement on the part of the Company set forth in this Agreement such that
the conditions set forth in Section 8.2(a) or 8.2(b) would not be satisfied; or

         (g) by the Company, upon a breach of any representation, warranty,
covenant or agreement on the part of Digital set forth in this Agreement such
that the conditions set forth in Section 8.3(a) or 8.3(b) would not be
satisfied; or

         (h) by Digital if any condition set forth in Section 8.1 or Section 8.2
cannot reasonably be expected to be satisfied by the date set forth in Section
9.1(b); or by the Company if any conditions set forth in Section 8.1 or Section
8.3 cannot reasonably be expected to be satisfied by the date set forth in
Section 9.1(b); or

         (i) by the Company if the Board of Directors of Digital shall fail to
recommend or withdraw, modify or change its recommendation of the Issuance in a
manner adverse to the Company or shall have resolved to do any of the foregoing;
or

         (j) by the Company or Digital if the Board of Directors of the Company
shall have resolved to accept a Superior Proposal.

9.2      EFFECT OF TERMINATION

         In the event of the termination of this Agreement pursuant to Section
9.1, this Agreement shall forthwith become void and there shall be no liability
on the part of any party hereto or any of its Affiliates, directors, officers or
shareholders except (a) as set forth in Sections 11.1 and 11.2 and (b) nothing
herein shall relieve any party from liability for any willful breach hereof.

                        ARTICLE X - SURVIVAL AND REMEDIES

10.1     SURVIVAL

         All representations and warranties contained in this Agreement, the
Operative Documents or any certificate delivered pursuant hereto or thereto
shall survive the Effective Time for a period of six months, and shall not be
deemed waived or otherwise affected by any investigation made or any knowledge
acquired with respect thereto, or by any notice delivered pursuant to Section
11.3. The covenants and agreements contained in this Agreement or in the other
Operative Documents shall survive the Effective Time and shall continue until
all obligations with respect thereto shall have been performed or satisfied or
shall have been terminated in accordance with their terms. The Confidentiality
Agreement shall survive termination of this Agreement as provided therein.


                                      -68-
<PAGE>   72
10.2     EXCLUSIVE REMEDY

         After the Effective Time, the reduction in the Share Consideration
described in Section 4.2 will be the sole and exclusive remedy of Digital and
Merger Sub for a breach of any representation, warranty or covenant contained
herein, except with respect to any claim based on fraud in the inducement or a
similar theory and except for the remedy of specific performance provided for in
Section 11.7 with respect to the obligations of the holders of the Holdback
Shares and the Shareholder Representative pursuant to Section 4.2 to be
performed after the Effective Time and the obligations set forth in the
Confidentiality Agreement, to the extent incorporated herein, to be performed
after the Effective Time.

                                   ARTICLE XI

                            MISCELLANEOUS AND GENERAL

11.1     FEES AND EXPENSES

         (a) Except as set forth in this Section 11.1 or as otherwise provided
herein, all fees and expenses incurred in connection with this Agreement and the
transactions contemplated hereby shall be paid by the party incurring such
expenses, whether or not the Merger is consummated; provided, however, that
Digital shall pay 70% and the Company shall pay 30% of all fees and expenses,
other than attorneys' fees, incurred in relation to the printing and filing of
the Proxy Statement/Prospectus (including any preliminary materials relating
thereto) and the S-4 Registration Statement (including financial statements and
exhibits) and any amendments or supplements thereto.

         (b) The Company shall pay Digital a fee of $4,000,000, plus actual,
documented and reasonable out-of-pocket expenses of Digital relating to the
transactions contemplated by this Agreement (including, but not limited to, fees
and expenses of Digital's counsel, accountants and financial advisers, but
excluding any discretionary fees paid to such financial advisors), upon the
earliest to occur of the following events:

                   (i)   the termination of this Agreement by Digital or the
         Company pursuant to Section 9.1(d) as a result of the failure to
         receive the requisite vote for approval and adoption by the
         shareholders of the Company;

                   (ii)  the termination of this Agreement by Digital pursuant
         to Section 9.1(e);


                                      -69-
<PAGE>   73
                   (iii) the termination of this Agreement by Digital pursuant
         to Section 9.1(f) after a breach by the Company of this Agreement; or

                   (iv)  the termination of this Agreement by the Company or
         Digital pursuant to Section 9.1(j);

provided, however, that in the event an Alternative Transaction is consummated
by the Company within six months of such event, the Company shall pay Digital an
additional fee of $2,000,000, plus actual, documented and reasonable
out-of-pocket expenses (including, but not limited to, fees and expenses of
Digital's counsel) incurred by Digital in connection with the collection of such
additional fee.

         (c) As used herein, "Alternative Transaction" means any of (i) a
transaction pursuant to which any Person (or group of Persons) other than
Digital, the Company or their Affiliates (a "Third Party") acquires more than
25% of the outstanding shares of the Company or Digital, as applicable, whether
from such party or pursuant to a tender offer or exchange offer or otherwise,
(ii) a merger or other business combination involving the Company or Digital
pursuant to which any Third Party acquires more than 25% of the outstanding
equity securities of the Company or Digital, as applicable, or the entity
surviving such merger or business combination, or (iii) any other transaction
pursuant to which any Third Party acquires control of assets (including for this
purpose the outstanding equity securities of Subsidiaries of the Company or
Digital, as applicable, and the entity surviving any merger or business
combination, including any of them) of the Company or Digital, as applicable, or
any of their respective Subsidiaries having a fair market value (as determined
by the Board of Directors of the Company in good faith) equal to more than 25%
of the fair market value of all the assets of the Company or Digital, as
applicable, and their respective Subsidiaries, taken as a whole, immediately
prior to such transaction.

         (d) Digital shall pay the Company a fee of $4,000,000, plus actual,
documented and reasonable out-of-pocket expenses of the Company relating to the
transactions contemplated by this Agreement (including, but not limited to, fees
and expenses of the Company's counsel, accountants and financial advisers, but
excluding any discretionary fees paid to such financial advisors), upon the
earliest to occur of the following events:

                   (i)   termination of this Agreement by Digital or the Company
         pursuant to Section 9.1(d) as a result of the failure to receive the
         requisite vote for approval and adoption by the shareholders of Digital
         at the Digital Shareholders Meeting;

                                      -70-
<PAGE>   74

                   (ii)  termination of this Agreement by the Company pursuant
         to Section 9.1(g) after a breach by Digital of this Agreement; or

                   (iii) the termination of this Agreement by the Company
         pursuant to Section 9.1(i);

provided, however, that in the event an Alternative Transaction is consummated
by Digital within six months of such event, Digital shall pay the Company an
additional fee of $2,000,000, plus actual, documented and reasonable
out-of-pocket expenses (including, but not limited to, fees and expenses of the
Company's counsel) incurred by the Company in connection with the collection of
such additional fee.

         (e) The fees payable pursuant to Sections 11.1(b) and 11.1(d)
(collectively, the "Fees") shall be paid (i) in the case of Fees payable upon
termination of this Agreement, within one business day after the first to occur
of the events described in Section 11.1(b) or 11.1(d) and (ii) in the case of
Fees payable as a result of an Alternative Transaction, within one business day
after consummation of the Alternative Transaction; provided, however, that in no
event shall Digital or the Company, as the case may be, be required to pay such
Fees to the other, if, immediately prior to the termination of this Agreement,
the party to receive the fee was in material breach of its obligations under
this Agreement.

11.2     DISCLOSURE STATEMENTS

         Any disclosure made with reference to one or more Sections of the
Company Disclosure Statement or the Digital Disclosure Statement shall be deemed
disclosed with respect to each other section therein as to which such disclosure
is relevant provided that such relevance is reasonably apparent.

11.3     NOTICES, ETC.

         All notices, requests, demands or other communications required by or
otherwise with respect to this Agreement shall be in writing and shall be deemed
to have been duly given to any party when delivered personally (by courier
service or otherwise), when delivered by facsimile (subject to confirmation of
receipt), or seven days after being mailed by first-class mail, postage prepaid
and return receipt requested, in each case to the applicable addresses set forth
below:

                                      -71-
<PAGE>   75

                           If to the Company:

                                    ViewStar Corporation
                                    1101 Marina Village Parkway
                                    Alameda, CA  94501
                                    Attn: Kamran Kheirolomoom, President
                                    Facsimile: (510) 337-2226

                                    with a copy to:

                                    Wilson Sonsini Goodrich & Rosati
                                    Professional Corporation
                                    650 Page Mill Road
                                    Palo Alto, CA  94304-1050
                                    Attn:  Robert B. Jack, Esq.
                                    Facsimile:  (415) 493-6811

                           If to Digital:

                                    Digital Systems International, Inc.
                                    6464 - 185th Avenue N.E.
                                    Redmond, WA  98052-5032
                                    Attn: Patrick S. Howard, President
                                    Facsimile: (206) 869-4511

                                    with a copy to:

                                    Perkins Coie
                                    1201 Third Avenue, 40th Floor
                                    Seattle, WA  98101-3099
                                    Attn:  Evelyn Cruz Sroufe, Esq.
                                    Facsimile:  (206) 583-8500

or to such other address as such party shall have designated by notice so given
to each other party.

11.4     AMENDMENTS, WAIVERS, ETC.

         This Agreement may not be amended, changed, supplemented, waived or
otherwise modified except by an instrument in writing signed by the party (or,
in the case of Section 7.8, the Company Indemnitees) against whom enforcement is
sought.


                                      -72-
<PAGE>   76
11.5     NO ASSIGNMENT

         This Agreement shall be binding upon and shall inure to the benefit of
and be enforceable by the parties and their respective successors and assigns;
provided, however, that except as otherwise expressly set forth in this
Agreement, neither the rights nor the obligations of any party may be assigned
or delegated without the prior written consent of the other parties.

11.6     ENTIRE AGREEMENT

         Except as otherwise provided herein, this Agreement (together with the
Confidentiality Agreement, to the extent set forth in Section 7.7) embodies the
entire agreement and understanding among the parties relating to the subject
matter hereof and supersedes all prior agreements and understandings relating to
such subject matter. There are no representations, warranties or covenants by
the parties hereto relating to such matter other than those expressly set forth
in this Agreement (including the Company Disclosure Statement and the Digital
Disclosure Statement) and any writings expressly required hereby.

11.7     SPECIFIC PERFORMANCE

         The parties acknowledge that money damages are not an adequate remedy
for violations of this Agreement and that any party may, in its sole discretion,
apply to a court of competent jurisdiction for specific performance or
injunctive or such other relief as such court may deem just and proper to
enforce this Agreement or to prevent any violation hereof and, to the extent
permitted by applicable law, each party waives any objection to the imposition
of such relief.

11.8     REMEDIES CUMULATIVE

         Except as set forth in Section 10.2, all rights, powers and remedies
provided under this Agreement or otherwise available in respect hereof at law or
in equity shall be cumulative and not alternative, and the exercise or beginning
of the exercise of any thereof by any party shall not preclude the simultaneous
or later exercise of any other such right, power or remedy by such party.

11.9     NO WAIVER

         The failure of any party hereto to exercise any right, power or remedy
provided under this Agreement or otherwise available in respect hereof at law or
in equity, or to insist upon compliance by any other party hereto with its
obligations hereunder, and any custom or practice of the parties at variance
with the terms hereof, shall not 


                                      -73-
<PAGE>   77
constitute a waiver by such party of its right to exercise any such or other
right, power or remedy or to demand such compliance.

11.10    NO THIRD PARTY BENEFICIARIES

         This Agreement is not intended to be for the benefit of and shall not
be enforceable by any Person who is not a party hereto, except for the
indemnification provisions contained in Section 7.8, which provisions may be
enforced by any Company Indemnitee referred to therein and the provisions of
Article IV relating to the reduction in the Share Consideration, which
provisions may be enforced by any officer, director or Affiliate of Digital who
has incurred Digital Losses.

11.11    JURISDICTION

         Each party hereby irrevocably submits to the exclusive jurisdiction of
the United States District Court for the Western District of Washington or any
court of the state of Washington located in the city of Seattle or the United
States District Court for the Northern District of California or any court of
the state of California located in the city of San Francisco in any action, suit
or proceeding arising in connection with this Agreement, and agrees that any
such action, suit or proceeding shall be brought only in such court (and waives
any objection based on forum non conveniens or any other objection to venue
therein); provided, however, that such consent to jurisdiction is solely for the
purpose referred to in this Section 11.11 and shall not be deemed to be a
general submission to the jurisdiction of said courts or in the state of
Washington other than for such purpose. Digital and the Company hereby waive any
right to a trial by jury in connection with any such action, suit or proceeding.

11.12    PUBLIC ANNOUNCEMENTS

         Digital and the Company will agree upon the timing and content of the
initial press release to be issued describing the transactions contemplated by
this Agreement, and will not make any public announcement thereof prior to
reaching such agreement unless required to do so by applicable law or
regulation. To the extent reasonably requested by either party, each party will
thereafter consult with and provide reasonable cooperation to the other in
connection with the issuance of further press releases or other public documents
describing the transactions contemplated by this Agreement.


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<PAGE>   78
11.13    GOVERNING LAW

         This Agreement and all disputes hereunder shall be governed by and
construed and enforced in accordance with the internal laws of the state of
Washington, without regard to principles of conflict of laws.

11.14    NAME, CAPTIONS, ETC.

         The name assigned to this Agreement and the section captions used
herein are for convenience of reference only and shall not affect the
interpretation or construction hereof. Unless otherwise specified (a) the terms
"hereof" and "herein" and similar terms refer to this Agreement as a whole and
(b) references herein to Articles or Sections refer to articles or sections of
this Agreement.

11.15    COUNTERPARTS

         This Agreement may be executed in any number of counterparts, each of
which shall be deemed to be an original, but all of which together shall
constitute one instrument. Each counterpart may consist of a number of copies,
each signed by less than all, but together signed by all, the parties hereto.


                                      -75-
<PAGE>   79
         IN WITNESS WHEREOF, this Agreement has been executed and delivered by
the parties set forth below.


DIGITAL SYSTEMS INTERNATIONAL, INC.         VIEWSTAR CORPORATION


By:                                          By:                           
   ------------------------------------          ------------------------------ 
      Name:                                          Name:                      
            ---------------------------                    --------------------
      Title:    President and Chief                  Title:  President and Chief
                Executive Officer                             Executive Officer 
                                                                                
                                                   
VISION MERGER CORPORATION                    


By:
    ----------------------------------
      Name:
           ---------------------------
      Title:  President




                                      -76-

<PAGE>   1
                                                                    EXHIBIT 10.1

                             SHAREHOLDERS AGREEMENT


         This SHAREHOLDERS AGREEMENT (this "Agreement"), dated as of October 14,
1996, is made and entered into among Digital Systems International, Inc., a
Washington corporation ("Digital"), ViewStar Corporation, a California
corporation ("ViewStar"), certain shareholders of Digital listed on Schedule A
attached hereto who are also directors or executive officers of Digital
(individually, a "Digital Shareholder" and collectively, the "Digital
Shareholders"), and certain shareholders of ViewStar listed on Schedule B
attached hereto (individually, a "ViewStar Shareholder" and collectively, the
"ViewStar Shareholders").

                                    RECITALS

         A. Concurrently herewith, Digital, Vision Merger Corporation, a wholly
owned subsidiary of Digital ("Merger Sub"), and ViewStar have entered into an
Agreement and Plan of Merger (the "Merger Agreement") pursuant to which Merger
Sub will merge with and into ViewStar (the "Merger"). Capitalized terms used and
not defined herein shall have the meanings assigned to such terms in the Merger
Agreement.

         B. Approval of the Merger Agreement by ViewStar's shareholders and
approval of the issuance of Digital Common Shares in the Merger (the "Issuance")
by Digital's shareholders are each conditions to the consummation of the Merger.

         C. For federal income tax purposes, it is intended that the Merger
shall qualify as a reorganization within the meaning of Section 368(a) of the
Code.

         D. It is also intended that the Merger shall be recorded for accounting
purposes as a pooling of interests.

         E. As a condition to the parties' entering into the Merger Agreement,
ViewStar has required that the Digital Shareholders agree, and Digital has
required that the ViewStar Shareholders agree, and the Digital Shareholders and
the ViewStar Shareholders have each agreed, to enter into this Agreement.
<PAGE>   2
                                    AGREEMENT

         NOW, THEREFORE, in consideration of the foregoing and the mutual
covenants contained herein, the parties hereto agree as follows:

         1.       REPRESENTATIONS AND WARRANTIES OF EACH VIEWSTAR SHAREHOLDER

         Each ViewStar Shareholder represents and warrants to Digital and the
Digital Shareholders that:

                  (a)      General Representations.

                            (i) As of the date hereof such ViewStar Shareholder
owns beneficially or of record the number of Shares set forth on Schedule B
hereto, and there are no outstanding proxies with respect to such Shares.

                            (ii) Such ViewStar Shareholder has the requisite
power to enter into this Agreement and to carry out his, her or its obligations
hereunder. If such ViewStar Shareholder is a corporation or other entity, the
execution and delivery of this Agreement by such ViewStar Shareholder and the
consummation by it of the transactions contemplated hereby have been duly
authorized by all necessary corporate or other action on the part of such
ViewStar Shareholder.

                            (iii) This Agreement is a legal and valid agreement
and obligation binding upon such ViewStar Shareholder, enforceable against such
ViewStar Shareholder in accordance with its terms, except as may be limited by
applicable bankruptcy, insolvency, reorganization, moratorium and other similar
laws of general application which may affect the enforcement of creditors'
rights generally and by general equitable principles.

                            (iv) The execution and delivery of this Agreement
does not, and the consummation of the transactions contemplated hereby and
compliance with the terms hereof will not, conflict with, or result in any
violation of or default (with or without notice or lapse of time or both) under,
any provision of (A) in the case of a ViewStar Shareholder which is a
corporation or other entity, its charter, bylaws or other organizational
documents or (B) in the case of any ViewStar Shareholder, any agreement,
instrument, permit, concession, franchise, license, judgment, order, decree,
statute, law, ordinance, rule or regulation applicable to such ViewStar
Shareholder or to his, her or its property or assets.


                                      -2-
<PAGE>   3
                            (v) No consent, approval, order or authorization of,
or registration, declaration or filing with, any court or Governmental Body, is
required by or with respect to such ViewStar Shareholder in connection with the
execution and delivery of this Agreement or the consummation by such ViewStar
Shareholder of the transactions contemplated hereby.

                  (b)      Pooling Covenants and Representations.

                            (i) During the period from the execution hereof
until 30 days prior to the Effective Time, without the consent of Digital (which
shall not be unreasonably withheld) such ViewStar Shareholder will not sell,
transfer or otherwise dispose of any securities of ViewStar or any shares of
capital stock of Digital held by such Shareholder except for (A) transfers or
other dispositions of a number of Shares less than 10% of the sum of (1) the
number of Shares held by such ViewStar Shareholder and (2) the number of Shares
subject to currently exercisable options held by such ViewStar Shareholder, (B)
transfers or other dispositions by operation of law upon the death of such
ViewStar Shareholder or by the estate of such ViewStar Shareholder if necessary
to pay estate taxes, or (C) other transfers or dispositions that will not
prevent Digital from accounting for the Merger as a pooling of interests, taking
into account the actions of other Affiliates.

                            (ii) From and after 30 days prior to the Effective
Time, such ViewStar Shareholder will not sell, transfer or otherwise dispose of
any securities of ViewStar, any Digital Common Shares received by such ViewStar
Shareholder in the Merger or any other shares of capital stock of Digital until
after such time as results covering at least 30 days of combined operations of
Digital and ViewStar have been published by Digital, in the form of a quarterly
earnings report, an effective registration statement filed with the SEC, a
report to the SEC on Form 10-K, 10-Q or 8-K, or any other public filing or press
release or other announcement which includes the combined sales and net income
of Digital and ViewStar, except as provided in Section 1(e) and except for
transfers or other dispositions that, taking into account the actions of other
Affiliates, will not prevent Digital from accounting for the Merger as a pooling
of interests.

                  (c)      Securities Act Covenants and Representations.

                            i) Such ViewStar Shareholder has been advised that
the offering, sale and delivery of Digital Common Shares pursuant to the Merger
will be registered under the Securities Act on a Registration Statement on Form
S-4. Such



                                      -3-
<PAGE>   4
ViewStar Shareholder has also been advised, however, that to the extent such
ViewStar Shareholder is considered an Affiliate of ViewStar at the time the
Merger Agreement is submitted for a vote of the shareholders of ViewStar, any
public offering or sale by such ViewStar Shareholder of any Digital Common
Shares received by such ViewStar Shareholder in the Merger will, under current
law, require either (A) further registration under the Securities Act of such
Digital Common Shares to be sold by such ViewStar Shareholder, (B) compliance
with Rule 145 promulgated by the SEC under the Securities Act or (C) the
availability of another exemption from such registration under the Securities
Act.

                            (ii) Such ViewStar Shareholder has read this
Agreement and the Merger Agreement and has discussed their requirements and
other applicable limitations upon such ViewStar Shareholder's ability to sell,
transfer or otherwise dispose of Digital Common Shares, to the extent such
ViewStar Shareholder believed necessary, with such ViewStar Shareholder's
counsel or counsel for ViewStar.

                            (iii) Such ViewStar Shareholder also understands
that stop transfer instructions will be given to Digital's transfer agent with
respect to Digital Common Shares and that a legend will be placed on the
certificates for the Digital Common Shares issued to such ViewStar Shareholder
in the Merger, or any substitutions.

                  (d)      Tax Covenants and Representations.

                  In addition to, and not in lieu of, the representations set
forth in clauses (b) and (c) above, each ViewStar Shareholder represents and
warrants to Digital that, except for distributions permitted by clause (e)
below, such ViewStar Shareholder has no plan or intention to sell, transfer or
otherwise dispose of a number of Digital Common Shares to be received by such
ViewStar Shareholder in the Merger that would reduce such ViewStar Shareholder's
ownership of Digital Common Shares to a number of shares having a value, as of
the date of the Merger, of less than 75% of the value of all of the formerly
outstanding capital stock of ViewStar held by such ViewStar Shareholder as of
the same date. Furthermore, each ViewStar Shareholder that will make a
distribution permitted by clause (e) below represents and warrants that it does
not, and to its knowledge its partners do not, have any plan or intention to
sell, transfer or otherwise dispose of a number of Digital Common Shares to be
received by such ViewStar Shareholder in the Merger that would, taking into
account any sales, transfers or dispositions by the ViewStar Shareholder
described in the previous sentence, reduce the aggregate number of Digital
Common Shares held by such ViewStar Shareholder and its partners to a number
having a value, as of the Effective Time, of less than 75% of the value of all
of the Digital Common Shares received by such ViewStar Shareholder in the
Merger. For purposes of these representations,


                                      -4-
<PAGE>   5
shares of ViewStar capital stock exchanged for cash or other property and Shares
exchanged for cash in lieu of fractional Digital Common Shares will be treated
as outstanding ViewStar capital stock, and any Digital Common Shares held by
such ViewStar Shareholder on the date hereof and otherwise sold, redeemed or
disposed of prior to or subsequent to the Effective Time will be considered in
making this representation. Such representations will be relied upon by Perkins
Coie in connection with the opinion contemplated by Section 8.2(f) of the Merger
Agreement.

                  (e)      Certain Partnerships.

                  Notwithstanding the representations contained in clauses (b)
through (d) above, after the Effective Time a ViewStar Shareholder which is and
has been since its formation a general or limited partnership for income tax
purposes, as determined under Section 7701 of the Code and the underlying
Treasury Regulations, may distribute all or part of the Digital Common Shares
received by such ViewStar Shareholder in the Merger to all of its partners for
no additional consideration and in a transaction in which no gain or loss is
recognized for income tax purposes; provided, however, that (i) any such
transfer shall be made pro rata based on each partner's ownership interest in
such ViewStar Shareholder, (ii) prior to any distribution pursuant to this
clause (e), each partner of such ViewStar Shareholder shall agree in writing to
be bound by the terms of clause (b) above to the same extent as the ViewStar
Shareholder that transferred the Digital Common Shares to such partner and (iii)
the partnership interest in the ViewStar Shareholder held by each partner at the
time of the distribution has been continuously held by such partner, and is
unchanged from the proportionate interest held by such partner, since the
execution of the Merger Agreement.

         2.       REPRESENTATIONS AND WARRANTIES OF DIGITAL SHAREHOLDERS

         Each Digital Shareholder represents and warrants to Digital and the
ViewStar Shareholders that:

                  (a)      General Representations.

                            (i) As of the date hereof, such Digital Shareholder
owns beneficially or of record, the number of Digital Common Shares set forth on
Schedule A hereto, and there are no outstanding proxies with respect to such
Shares.

                            (ii) Such Digital Shareholder has the requisite
power to enter into this Agreement and to carry out his or her obligations
hereunder.

                            (iii) This Agreement is a legal and valid agreement
and obligation binding upon such Digital Shareholder, enforceable against such
Digital 


                                      -5-
<PAGE>   6
Shareholder in accordance with its terms, except as may be limited by applicable
bankruptcy, insolvency, reorganization, moratorium and other similar laws of
general application which may affect the enforcement of creditors' rights
generally and by general equitable principles.

                            (iv) The execution and delivery of this Agreement
does not, and the consummation of the transactions contemplated hereby and
compliance with the terms hereof will not, conflict with, or result in any
violation of or default (with or without notice or lapse of time or both) under,
any provision of any agreement, instrument, permit, concession, franchise,
license, judgment, order, decree, statute, law, ordinance, rule or regulation
applicable to such Digital Shareholder or to his or her property or assets.

                            (v) No consent, approval, order or authorization of,
or registration, declaration or filing with, any court or Governmental Body, is
required by or with respect to such Digital Shareholder in connection with the
execution and delivery of this Agreement or the consummation by such Digital
Shareholder of the transactions contemplated hereby.

                  (b)      Pooling Covenants and Representations.

                            (i) During the period from the execution hereof
until 30 days prior to the Effective Time, without the consent of Digital (which
shall not be unreasonably withheld) such Digital Shareholder will not sell,
transfer or otherwise dispose of any securities of Digital held by such
Shareholder except for (A) transfers or other dispositions of a number of
Digital Common Shares less than 10% of the sum of (1) the number of Digital
Common Shares held by such Digital Shareholder and (2) the number of Digital
Common Shares subject to currently exercisable options held by such Digital
Shareholder, (B) transfers or other dispositions by operation of law upon the
death of such Digital Shareholder or by the estate of such Digital Shareholder
if necessary to pay estate taxes, or (C) other transfers or dispositions that
will not prevent Digital from accounting for the Merger as a pooling of
interests, taking into account the actions of other Affiliates.

                            (ii) From and after 30 days prior to the Effective
Time, such Digital Shareholder will not sell, transfer or otherwise dispose of
any securities of Digital until after such time as results covering at least 30
days of combined operations of Digital and ViewStar have been published by
Digital, in the form of a quarterly earnings report, an effective registration
statement filed with the SEC, a report to the SEC on Form 10-K, 10-Q or 8-K, or
any other public filing or announcement which includes the combined sales and
net income, except for transfers or other dispositions 


                                      -6-
<PAGE>   7
that, taking into account the actions of other Affiliates, will not prevent
Digital from accounting for the Merger as a pooling of interests.

         3.       REPRESENTATIONS AND WARRANTIES OF DIGITAL AND VIEWSTAR

         (a)      Digital represents and warrants to the ViewStar Shareholders
                  that:

                   (i)     Digital is a corporation duly organized, validly
                           existing and in good standing under the laws of the
                           state of Washington.

                   (ii)    Digital has the requisite corporate power to enter
                           into this Agreement and to carry out its obligations
                           hereunder.

                   (iii)   This Agreement is a legal and valid agreement and
                           obligation binding upon Digital, enforceable against
                           Digital in accordance with its terms, except as may
                           be limited by applicable bankruptcy, insolvency,
                           reorganization, moratorium and other similar laws of
                           general application which may affect the enforcement
                           of creditors' rights generally and by general
                           equitable principles.

         (b)      ViewStar represents and warrants to Digital and the Digital
                  Shareholders that:

                   (i)     ViewStar is a corporation duly organized, validly
                           existing and in good standing under the laws of the
                           state of California.

                   (ii)    ViewStar has the requisite corporate power to enter
                           into this Agreement and to carry out its obligations
                           hereunder.

                   (iii)   This Agreement is a legal and valid agreement and
                           obligation binding upon ViewStar, enforceable against
                           ViewStar in accordance with its terms, except as may
                           be limited by applicable bankruptcy, insolvency,
                           reorganization, moratorium and other similar laws of
                           general application which may affect the enforcement
                           of creditors' rights generally and by general
                           equitable principles.

         4.       OBLIGATION OF THE VIEWSTAR SHAREHOLDERS TO APPROVE MERGER

                  (a) Each ViewStar Shareholder hereby irrevocably agrees to
attend any special meeting of the shareholders of ViewStar called for the
purpose of approving the Merger Agreement and/or the Merger (the "ViewStar
Shareholders Meeting"), in person or by proxy, and to vote (or cause to be
voted) all Shares, and any other voting securities of ViewStar, whether issued
heretofore or hereafter, that such 


                                      -7-
<PAGE>   8
ViewStar Shareholder owns or has the right to vote, for approval and adoption of
the Merger Agreement and the Merger, such agreement to vote to apply also to any
adjournment or adjournments of the ViewStar Shareholders Meeting. In the event
that ViewStar should elect to solicit consents to the Merger in lieu of holding
the ViewStar Shareholders Meeting, each ViewStar Shareholder hereby irrevocably
agrees to execute (or cause to be executed) a consent or consents with respect
to all Shares, and any other voting securities of ViewStar, whether issued
heretofore or hereafter, that such ViewStar Shareholder owns or has the right to
vote, for approval and adoption of the Merger Agreement and the Merger.

                  (b) To the extent inconsistent with the foregoing provisions
of this Section 4, each ViewStar Shareholder hereby revokes any and all previous
proxies with respect to such ViewStar Shareholder's Shares or any other voting
securities of ViewStar.

         5.       OBLIGATION OF DIGITAL SHAREHOLDERS TO APPROVE ISSUANCE

                  (a) Each Digital Shareholder hereby agrees to attend the
Digital Shareholders Meeting, in person or by proxy, and to vote (or cause to be
voted) all Digital Common Shares, and any other voting securities of Digital,
whether issued heretofore or hereafter, that such Digital Shareholder owns or
has the right to vote, for approval of the Issuance, such agreement to vote to
apply also to any adjournment or adjournments of the Digital Shareholders
Meeting.

                  (b) To the extent inconsistent with the foregoing provisions
of this Section 5, each Digital Shareholder hereby revokes any and all previous
proxies with respect to such Digital Shareholder's Digital Common Shares or any
other voting securities of Digital.

         6.       TERMINATION OF AGREEMENTS

         Subject to and effective upon consummation of the Merger, each ViewStar
Shareholder hereby irrevocably waives, and agrees to execute any agreement
providing for the termination of, any and all preemptive rights, rights of first
refusal or first offer or any registration rights with respect to any Shares or
other securities of ViewStar or any securities issued in exchange therefor.

         7.       TERMINATION

         This Agreement shall terminate on the earliest of: (i) mutual written
consent of the parties hereto or (ii) the date on which the Merger Agreement is
terminated in accordance with Article IX thereof. Upon the termination of this
Agreement pursuant


                                      -8-
<PAGE>   9
to this Section 7, none of the parties to this Agreement shall have any further
obligation hereunder.

         8.       NOTICES

         All notices, requests, demands or other communications required by or
otherwise with respect to this Agreement shall be in writing and shall be deemed
to have been duly given to any party when delivered personally (by courier
service or otherwise), when delivered by facsimile and confirmed by return
facsimile , or seven days after being mailed by first-class mail, postage
prepaid and return receipt requested in each case to the applicable addresses
set forth below:

                  If to Digital:

                           Digital Systems International, Inc.
                           6464 185th Avenue NE
                           Redmond, Washington  98052
                           Attn.:  General Counsel
                           Facsimile:  (206) 869-4511

                  with a copy to:

                           Perkins Coie
                           1201 Third Avenue, 40th Floor
                           Seattle, Washington  98101-3099
                           Attn.:  Michael E. Stansbury
                           Facsimile:  (206) 583-8500

                  If to ViewStar:

                           ViewStar Corporation
                           1101 Marina Village Parkway
                           Alameda, California  94501
                           Attn:  President
                           Facsimile:  (510) 337-2226

                  with a copy to:

                           Wilson Sonsini Goodrich & Rosati
                           650 Page Mill Road
                           Palo Alto, California  94304-1050
                           Attn.:  Robert B. Jack
                           Facsimile:  (415) 493-6811


                                      -9-
<PAGE>   10
                  If to the Digital Shareholders, to their respective addresses
                  set forth on Schedule A hereto, with copies to:

                           Perkins Coie
                           1201 Third Avenue, 40th Floor
                           Seattle, Washington  98101-3099
                           Attn.:  Michael E. Stansbury
                           Facsimile:  (206) 583-8500

                  If to the ViewStar Shareholders, to their respective addresses
                  set forth on Schedule B hereto, with copies to:

                           Wilson Sonsini Goodrich & Rosati
                           650 Page Mill Road
                           Palo Alto, California  94304-1050
                           Attn.:  Robert B. Jack
                           Facsimile:  (415) 493-6811

or to such other address as such party shall have designated by notice so given
to each other party.

         9.       TRANSFER; ASSIGNMENT

         Neither this Agreement nor any of the rights, interests or obligations
in this Agreement shall be assigned by any of the parties hereto without the
prior written consent of the other parties hereto. Subject to the preceding
sentence, this Agreement shall be binding upon, inure to the benefit of and be
enforceable by the parties hereto and their respective heirs, legal
representatives, successors and permitted assigns.

         10.      AMENDMENT

         This Agreement cannot be amended or modified except by a written
instrument executed by the parties to this Agreement who propose to be bound by
the amendment or modification.

         11.      HEADINGS

         The headings in this Agreement are inserted for convenience of
reference only and are not intended to be a part of or affect the meaning or
interpretation of this Agreement.


                                      -10-
<PAGE>   11
         12.      ENTIRE AGREEMENT

         This Agreement supersedes any and all oral or written agreements and
understandings heretofore made relating to the subject matter hereof and
contains the entire agreement of the parties hereto relating to the subject
matter hereof.

         13.      GOVERNING LAW

         This Agreement shall be governed by and construed in accordance with
the internal laws of the state of Washington without regard to conflicts-of-laws
principles.

         14.      REMEDIES

         Each party hereto acknowledges that the other parties to this Agreement
may not have an adequate remedy at law for money damages in the event that this
Agreement is not performed by such party in accordance with its terms and,
therefore, agrees that each party shall be entitled to specific performance of,
and injunctive relief to prevent any violation of, the terms hereof, in addition
to any other remedy or relief available at law or in equity, and further agrees
not to take action, directly or indirectly, in opposition to any other party's
seeking such specific enforcement or injunctive relief.

         15.      SEVERABILITY

         If any term of this Agreement or the application thereof to any party
or circumstance shall be held invalid or unenforceable to any extent, the
remainder of this Agreement and the application of such term to the other
parties or circumstances shall not be affected thereby and shall be enforced to
the greatest extent permitted by applicable law; provided, however, that in such
event the parties shall negotiate in good faith in an attempt to agree to
another provision (in lieu of the term or application held to be invalid or
unenforceable) that will be valid and enforceable and will carry out the
parties' intentions hereunder.

         16.      NO WAIVER

         The failure of any party hereto to exercise any right, power or remedy
provided under this Agreement or otherwise available in respect hereof at law or
in equity, or to insist upon compliance by any other party hereto with its
obligations hereunder, and any custom or practice of the parties at variance
with the terms hereof, shall not constitute a waiver by such party of its right
to exercise any such or other right, power or remedy or to demand such
compliance.


                                      -11-
<PAGE>   12
         17.      NO THIRD PARTY BENEFICIARIES

         This Agreement is not intended to be for the benefit of and shall not
be enforceable by any Person who or which is not a party hereto.

         18.      LIMITATION ON LIABILITY

         No ViewStar Shareholder shall have any liability hereunder for any
actions or omissions of any other ViewStar Shareholder or any Digital
Shareholder, and no Digital Shareholder shall have any liability hereunder for
any actions or omissions of any other Digital Shareholder or any ViewStar
Shareholder.

         19.      COUNTERPARTS

         This Agreement may be executed in several counterparts, each of which
will be deemed an original but all of which together constitute one and the same
instrument.

         20.      AFFILIATE STATUS

         The execution of this Agreement by each of the ViewStar Shareholders
and Digital Shareholders shall not be deemed to be an admission by such ViewStar
Shareholder or Digital Shareholder that such ViewStar Shareholder or Digital
Shareholder is an "affiliate" of ViewStar or Digital, as the case may be, within
the meaning of Rule 12b-2 under the Securities Exchange Act of 1934, as amended.

             [THE REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK.]


                                      -12-
<PAGE>   13
         IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date first written above.


DIGITAL SYSTEMS INTERNATIONAL, INC.
                                             VIEWSTAR CORPORATION


By                                           
   -------------------------                 By                            
  Its                                          ---------------------------------
     -----------------------                   Its                             
                                                  ------------------------------
                                  





          

DIGITAL SHAREHOLDERS:                        VIEWSTAR SHAREHOLDERS:

                                             Inman & Bowman



- ---------------------------------            -----------------------------------
Tom A. Alberg                                By                          
                                               ---------------------------------
                                               Its                              
                                                  ------------------------------
                                             





- ---------------------------------            Inman & Bowman Entrepreneurs
H. Robert Gill


- ---------------------------------            -----------------------------------
Harvey N. Gillis                             By                                 
                                               ---------------------------------
                                               Its                              
                                                 ------------------------------
                                                   
                                              

- ---------------------------------            
Patrick S. Howard                            Institutional Venture Management IV


- ---------------------------------
David J. Ladd    
                                             -----------------------------------
                                             By
                                               ---------------------------------
                                               Its
                                                  ------------------------------


                                      -13-
<PAGE>   14
                                              Institutional Venture Partners IV



                                              ----------------------------------
                                              By
                                                --------------------------------
                                                Its
- --------------------------------                   -----------------------------
Robert S. Leventhal

- --------------------------------
Cynthia Stroum  
                                              J.P. Morgan Investment Corporation



- --------------------------------                                              
Thomas R. Clark
                                          
                                              ----------------------------------
- --------------------------------              By                                
Steve L. Adams                                  --------------------------------
                                                Its                             
                                                   -----------------------------
                                              


- --------------------------------              Sixty Wall Street SBIC Fund 
John J. Flavio                               


                                              ----------------------------------
                                              By                                
- --------------------------------                --------------------------------
Edmund D. Wilsbach                              Its                             
                                                   -----------------------------
                                             


                                             Mayfield Associates

                                             
                                             ----------------------------------
                                             By                                
                                               --------------------------------
                                               Its                             
                                                  -----------------------------
                                             
                                      -14-
<PAGE>   15
                                            Mayfield Associates Fund II


                                             ----------------------------------
                                             By                                
                                               --------------------------------
                                               Its                             
                                                  -----------------------------







  
                                             Mayfield VI



                                             ----------------------------------
                                             By                                
                                               --------------------------------
                                               Its                             
                                                  -----------------------------



                                             Mayfield VII


                                             ----------------------------------
                                             By                                
                                               --------------------------------
                                               Its                             
                                                  -----------------------------



                                             Technology Partners West Fund II


                                             ----------------------------------
                                             By                                
                                               --------------------------------
                                               Its                             
                                                  -----------------------------



                                      -15-
<PAGE>   16
                                          Technology Partners West Fund III


                                          --------------------------------------
                                          By                                
                                            ------------------------------------
                                            Its                             
                                               ---------------------------------




                                          Technology Partners West Fund IV, L.P.


                                          --------------------------------------
                                          By                                
                                            ------------------------------------
                                            Its                             
                                               ---------------------------------




                                          TPW Venture Partners IX


                                          --------------------------------------
                                          By                                
                                            ------------------------------------
                                            Its                             
                                               ---------------------------------



                                          Wongfratis Company


                                          --------------------------------------
                                          By                                
                                            ------------------------------------
                                            Its                             
                                               ---------------------------------


                                      -16-
<PAGE>   17
                                                         -----------------------
                                                         Kamran Kheirolomoom
                                                            

                                                       
                                                         -----------------------
                                                         Gayle A. Crowell



                                                         -----------------------
                                                         Robert I. Pender, Jr.



                                                         -----------------------
                                                         John E. Ardell, III


                                      -17-
<PAGE>   18
                                   SCHEDULE A
                                       TO
                             SHAREHOLDERS AGREEMENT

<TABLE>
<CAPTION>
                                                                       DIGITAL COMMON                DIGITAL COMMON 
                                                                      SHARES BENEFICIALLY           SHARES SUBJECT TO 
                     DIGITAL SHAREHOLDERS                                   OWNED                    OUTSTANDING OPTIONS
- -------------------------------------------------------               -------------------           -------------------
<S>                                                                            <C>                           <C>
   Tom A. Alberg                                                                11,100                        10,000
       c/o Madrona Investment Group LLC
       1201 Third Avenue, 40th Floor
       Seattle, WA  98101

   H. Robert Gill                                                                    0                         5,000
       6368 Swallow Lane
       Boulder, CO 80303-1456

   Harvey N. Gillis                                                             30,000                        10,000
       c/o Advanced Technology Labs
       22100 Bothell-Everett Highway
       Bothell, WA  98021

   Patrick S. Howard                                                             6,000                       175,000
       c/o Digital Systems International, Inc.
       6464 - 185th Avenue NE
       Redmond, WA  98052

   David J. Ladd                                                                     0                         7,000
       c/o Octel Communications
       1001 Murphy Ranch Rd.
       Milpitas, CA 95035

   Robert S. Leventhal                                                             750                         7,000
       1261 Parkside Drive E.
       Seattle, WA 98112-3717

   Cynthia Stroum                                                               97,774                        10,000
       1420 Fifth Avenue, Suite 3000
       Seattle, WA  98101
</TABLE>



                                      -1-
<PAGE>   19
<TABLE>
<S>                                                                             <C>                         <C>
   Thomas R. Clark                                                               4,093                       115,000
       c/o Digital Systems International, Inc.
       6464 - 185th Avenue NE
       Redmond, WA  98052

   Steve L. Adams                                                                    0                       100,000
       c/o Digital Systems International, Inc.
       6464 - 185th Avenue NE
       Redmond, WA  98052

   John J. Flavio                                                                3,868                        83,000
       c/o Digital Systems International, Inc.
       6464 - 185th Avenue NE
       Redmond, WA  98052

   Edmund D. Wilsbach                                                                0                        70,600
       c/o Digital Systems International, Inc.
       6464 - 185th Avenue NE
       Redmond, WA  98052
</TABLE>


                                      -2-
<PAGE>   20
                                   SCHEDULE B
                                       TO
                             SHAREHOLDERS AGREEMENT

<TABLE>
<CAPTION>
                                                                                                  SHARES OF COMPANY
                                                                                                   COMMON STOCK 
                                                           SHARES ISSUABLE     SHARES ISSUABLE     ISSUABLE UPON
                                           SHARES OF       UPON EXERCISE OF   UPON EXERCISE OF     CONVERSION OF      
                                            COMPANY         OUTSTANDING         OUTSTANDING         COMPANY
VIEWSTAR SHAREHOLDERS                        COMMON         OPTIONS              WARRANTS          PREFERRED STOCK          TOTALS
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                           <C>          <C>                 <C>                   <C>                 <C>

                                                                             
Inman & Bowman                                 430,162                          14,414                248,998              704,790
Inman & Bowman Entrepreneurs                     7,950                             146                  3,119
   ATTN:  Grant Inman                                                        
   4 Orinda Way                                                              
   Building D, Suite 150                                                     
   Orinda, CA  94563                                                         
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                             
Institutional Venture Mgmt IV                    5,156                             171                  2,966              552,813
Institutional Venture Partners IV              338,525                          11,246                194,749
   ATTN:  Geoffrey Yang                                                      
   3000 Sand Hill Road                                                       
   Building 2, Suite 290                                                     
   Menlo Park, CA  94108                                                     
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                             
JP Morgan Investment Corporation               426,393                          11,821                205,345              654,760
Sixty Wall Street SBIC Fund                                                                            11,201
   ATTN:  Donald Patrick                                                     
   60 Wall Street                                                            
   New York, NY  10260                                                       
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                             
Mayfield Associates                             21,686                             618                 11,219            1,141,504
Mayfield Associates Fund II                      7,531                             366                  5,749
</TABLE>

                                                                         

                                      -1-
<PAGE>   21
        

<TABLE>
<CAPTION>
                                                                                                SHARES OF COMPANY
                                                                                                   COMMON STOCK 
                                                           SHARES ISSUABLE     SHARES ISSUABLE     ISSUABLE UPON
                                           SHARES OF       UPON EXERCISE OF   UPON EXERCISE OF     CONVERSION OF      
                                            COMPANY         OUTSTANDING         OUTSTANDING         COMPANY
VIEWSTAR SHAREHOLDERS                        COMMON         OPTIONS              WARRANTS          PREFERRED STOCK      TOTALS
- -----------------------------------------------------------------------------------------------------------------------------------
<S>                                         <C>           <C>                   <C>                    <C>           <C>   

                                                                                                     
Mayfield VI                                  520,477                             14,832                 269,258
Mayfield VII                                 159,830                              7,772                 122,167
   ATTN:  F. Gibson Myers                                                                            
   2800 Sand Hill Road, Suite 250                                                                    
   Menlo Park, CA 94025
- -----------------------------------------------------------------------------------------------------------------------------------
                                                                                                     
Technology Partners West Fund II              69,165                                893                  22,551       378,523
Technology Partners West Fund III             69,164                                893                  22,551
Technology Partners West Fund IV             136,600                              1,786                  44,813
TPW Venture Partners IX                        8,657                                                      1,451
   ATTN:  William Hart                                                                               
   1550 Tiburon Blvd., Suite A                                                                       
   Belvedere, CA 94920
- -----------------------------------------------------------------------------------------------------------------------------------
                                                                                                     
Wongfratris Company                          233,497                              6,471                 118,557       358,525
   ATTN:  Hon Wong                                                                                   
   51 Jordan Place                                                                                   
   Palo Alto, CA 94303
- -----------------------------------------------------------------------------------------------------------------------------------
                                                                                                     
Kamran Kheirolomoom                          263,428              71,428                                              334,856
   c/o  Viewstar Corporation                                                                         
   1101 Marina Village Parkway                                                                       
   Alameda, CA 94501
- -----------------------------------------------------------------------------------------------------------------------------------

                                                                                                     
Gayle Crowell                                 85,714              42,857                                              128,571
   25205 Palomares Road                                                                              
   Castro Valley, CA 94552
- -----------------------------------------------------------------------------------------------------------------------------------
</TABLE>


                                      -2-
<PAGE>   22
<TABLE>
<CAPTION>
                                                                                                SHARES OF COMPANY
                                                                                                   COMMON STOCK 
                                                           SHARES ISSUABLE     SHARES ISSUABLE     ISSUABLE UPON
                                           SHARES OF       UPON EXERCISE OF   UPON EXERCISE OF     CONVERSION OF      
                                            COMPANY         OUTSTANDING         OUTSTANDING         COMPANY
VIEWSTAR SHAREHOLDERS                        COMMON         OPTIONS              WARRANTS          PREFERRED STOCK      TOTALS
- --------------------------------------------------------------------------------------------------------------------------------
<S>                                      <C>              <C>                <C>                    <C>               <C>


Robert Pender                                45,714            24,287                                                     70,001 
  c/o ViewStar Corporation
  1101 Marina Village Parkway
  Alameda, CA 94501
- --------------------------------------------------------------------------------------------------------------------------------

J. E. Ardell III                             10,714                                                     3,764             14,478
   25570 Hatton Road
   Carmel, CA  93923
- --------------------------------------------------------------------------------------------------------------------------------

Umang Gupta                                                                                            18,571
   523 Harvard Road        
   San Mateo, Ca 94402   
- --------------------------------------------------------------------------------------------------------------------------------

TOTAL OF COLUMNS                           2,840,363            157,143            71,429            1,288,458          4,357,393
================================================================================================================================
</TABLE>



                                      -3-

<PAGE>   1
                                                                    EXHIBIT 10.2
                 JOINT MARKETING & PRODUCT DEVELOPMENT AGREEMENT

THIS AGREEMENT is made as of the 20th day of September, 1996, between VIEWSTAR
CORPORATION, a California Corporation ("VS"), and DIGITAL SYSTEMS INTERNATIONAL,
INC., a Washington corporation ("DSI").

                                    RECITALS

A. DSI has developed and sells sophisticated telephone call and "customer
management" hardware and software products and services.

B. VS has developed and sells various workflow automation software products and
services.

C. DSI would like to develop a joint marketing relationship with VS to establish
a marketing and product development alliance that enables both companies to
target the call center as the strategic point of entry for delivering a broader
and higher value customer management value proposition.

                                    AGREEMENT

NOW, THEREFORE, the parties agree as follows:

1. JOINT PRODUCT DEVELOPMENT EFFORTS: DSI and VS will immediately begin joint
product development in three phases, as follows:

     PHASE 1 will include the integration of DSI's ADAPTS reusable software, the
     Mosaix system, and the VS system using ADAPTS APIs and VS APIs. Each party,
     at its own expense, will provide sufficient product development resources
     to specify and develop a demonstrable prototype (as described below).

     The prototype, IN CONCEPT, SUBJECT TO FURTHER NEGOTIATION AND AGREEMENT
     BETWEEN THE PARTIES, will take an inbound call and, using the ANI and DNIS
     of the incoming call, and initiate a workflow. The call initiating the
     workflow will be directed to a customer service representative (CSR) who is
     associated with the type of work requested. (In the case of an outbound
     model, a workflow may be initiated, and the attributes of a customer in a
     case folder will cause the outbound call to be executed.) The appropriate
     application will be launched with the proper customer information filled
     in. Documents will be updated and created. A call transaction record (CTR)
     becomes a document in the case folder, and the CTR also contains a
     reference to the case folder. The CSR will then cause a call transfer to a
     backoffice CSR. The backoffice CSR will receive the call, a screen pop with
     call history, followed by the case folder, which contains the work to be
     completed. The work will be completed; the customer interaction will be
     concluded.

     PHASE 2 will include additional integration of the Mosaix system, ADAPTS,
     and the VS system using VS's OLE controls. Each party will identify a
     targeted customer application and provide sufficient product development
     resources to specify and develop a "proof of concept" application (as
     described below) (preferrably in a referenceable customer account).

     The application, IN CONCEPT, SUBJECT TO FURTHER NEGOTIATION AND AGREEMENT
     BETWEEN THE PARTIES, will create callflow specific icons so that a callflow
     map can be created for performing such functions as data directed routing,
     call transfer, call conference, agent monitoring. The CTR will become a
     standard document in the case and capable of being abstracted for use when
     writing a callflow map. Callflow maps (business rules) will be created and
     available for use in customer-specific applications. The execution of
     certain functions (like routing) may still be crudely implemented at the
     lower levels. An Internet callflow/workflow interaction should be
     demonstrable at this point, if not demonstrable in Phase 1.

     PHASE 3, IN CONCEPT, SUBJECT TO FURTHER DUE DILIGENCE, NEGOTIATION AND
     AGREEMENT BETWEEN THE PARTIES,, will include the integration of the DSI
     Raptor software and the VS software to provide a fully integrated
     (callflow/workflow) customer management system targeted at small to medium
     enterprises. The system will support 3-5 "ServiceReady" applications for
     targeted buyer groups. Each party, at its own expense, will


                                       1
<PAGE>   2
provide sufficient product development, product management, and product
marketing resources to specify and develop the first release of the integrated
customer management system.

     At the conclusion of this phase, the Raptor and VS systems will share the
     same administration of business rules, roles, skills, resource management,
     task queuing and management, routes, reporting, and real-time monitoring of
     CSR states. The system will support the real-time metrics of callflow
     performance (i.e., service levels) because much more emphasis is placed on
     real-time performance in callflow systems than workflow only systems. The
     system will include a skills-based routing application that performs the
     routing in real-time based on best available skill while maintaining
     service levels. The implementation will support both "push' and "pull"
     models, where these can be dynamically changed on a per CSR basis as
     determined by service level criteria. Reporting will be integrated such
     that callflow information is available in the same manner as workflow
     information; that is, using the same metaphors. The system will support
     inter-ACD transfers where the workflow case is delivered to a remote site
     and will support collaborative workflow at the desktop.

 2.  JOINT MARKETING EFFORTS: DSI and VS agree to immediately execute joint
     sales and marketing deliverables that include:

 a)  A joint press release -- to be released upon mutual agreement.

 b)  A "The Call Center: Your Most Strategic Business Asset for Customer
     Management" White Paper extolling the higher value proposition of
     integrated call and work flows in the Mission Perfect Call Center,
     including the value of automating customer-focused business processes,
     enabling enterprise customer service, and managing the customer information
     life cycle.

 c)  A PowerPoint presentation that characterizes the call center market
     opportunity addressed by the two companies combined offerings; that
     strategically positions the combination of DSI and VS in the broader
     customer interaction market; and that extols the higher value proposition
     to customers of integrated call and work flows in the call center.

 d)  Formation of a VS/DSI sales, marketing, and consulting services "tiger
     team."

 e)  Identification of the top 100 customer accounts (combined VS and DSI
     customers) that are highly qualified prospects for a combined product
     offering.

 f)  High-level sales cross-training materials for VS's and DSI's respective
     sales forces. Time, place, and vehicle of training to be determined.

 g)  Detailed sales training materials for DSI/VS tiger team sales force. Time,
     place, and vehicle of training to be determined.

 h)  A channel marketing plan for all channels of distribution, including direct
     sales, inside telesales, systems integrators, DSI professional services,
     and the DSI VAR channel.

 i)  Conduct joint briefings with Microsoft marketing program managers (e.g.,
     NT, Call Center, and Financial Services program managers) to gain market
     endorsement and visibility in Microsoft marketing forums -- commencing upon
     a date to be determined, but in any case after public announcement of the
     relationship between DSI and VS as contemplated by this Agreement.

 j)  Conduct joint briefings with selected financial and industry analysts to
     gain market endorsement -- commencing upon a date to be determined, but in
     any case after public announcement of the relationship between DSI and VS
     as contemplated by this Agreement.

 k)  A detailed sales and marketing plan for 1997.


                                       2
<PAGE>   3
3.   RESALE RIGHTS: VS agrees to grant DSI non-exclusive rights to resell VS
     products and all derivative products of joint product development phases
     1-3 through DSI channels in mutually agreed upon markets, geographies,
     specified distribution partners, and/or to targeted customer lists, upon
     terms and conditions to be agreed upon in writing.

4    ADDITIONAL OBLIGATIONS:

 a)  Each party will present the other in a positive, professional manner. All
     comments, questions or other references from existing/former customers or
     current prospects regarding the other's products will be forwarded promptly
     to the other party's product representative, as referenced below, who shall
     respond directly to the prospect or customer. The forwarding party shall
     inform the customer or prospect that the other party's representative will
     respond directly to such comment, question or reference.

 b)  Neither party will represent that (a) it is an agent or representative of
     the other party or (b) it has the authority to negotiate an agreement in
     the name of or on behalf of the other party.

 c)  Neither party will make any warranties, express or implied, concerning the
     performance of the other party's product, including its fitness for meeting
     a particular need of a customer.

 d)  Neither party will use the name, logo, trademark or service mark of the
     other party in connection with the marketing of the other's products
     without obtaining advance written approval from the other party regarding
     such use. The request for approval will include the specific copy for which
     use is proposed.

 e)  Each party will inform the other party in a timely manner of any changes or
     modifications to or new applications for its products.

 f)  Neither party may exhibit or demonstrate or otherwise market the other
     party's product at any trade show without the prior consent and assistance
     of such other party.

5.   RELATIONSHIP OF THE PARTIES:

 a)  DSI and VS will remain independent contractors. No partnership, agency
     relationship or joint venture is intended or created by this Agreement, and
     neither party shall have any right to obligate the other in any fashion.

 b)  Except as express agreed between the parties, neither party will sell,
     install, maintain or otherwise support any product of the other. Each party
     hereby disclaims any and all warranties regarding the operating performance
     of the other's products.

 c)  Each party hereby indemnifies, defends and holds the other harmless from
     any claims, charges, costs or damages brought or asserted against such
     other arising out of or relating in any way to the sale, offer for sale,
     installation, support or use of such party's products.

6.   TERM OF AGREEMENT: This Agreement shall commence upon the date of execution
     by both and remain in force for a period of 2 years, thereafter
     automatically renewing for successive 1 year periods, unless either party
     elects to terminate this Agreement by giving the other notice of
     termination at least 60 days prior to any anniversary of the commencement
     date. The effective date of termination shall be as of the end of business
     on the day preceding such anniversary.

     This Agreement may also be terminated by either party in the event a
     material breach of any of the terms or conditions of this Agreement by the
     other, effective 90 days after giving notice to the other of such breach,
     and describing in reasonable detail the facts and circumstances thereof,
     provided, however, that if such breach is cured within such 90 day period
     then the notice of termination for breach shall be deemed withdrawn as of
     the date notice of such cure is given to the non-breaching party.


                                       3
<PAGE>   4
7.   NON-DISCLOSURE OF CONFIDENTIAL INFORMATION.

    a)  "Confidential Information" as used in this Agreement shall mean any and
        all information not generally known relating to the business of either
        party or any third parties with whom they deal, or any material or
        information supplied by or on behalf of either party, that is disclosed
        to or known by the other by reason of its dealings with such party as
        contemplated by this Agreement. Confidential Information includes
        information about the parties and their subsidiaries and affiliates'
        products, processes and services including working models, samples,
        products research, development, inventions, manufacturing, purchasing,
        accounting, engineering, marketing, merchandising, selling, customer
        lists, customer prospects, software programs, software codes,
        specifications, documents, "Know How" and "Show How".

    b)  All Confidential Information disclosed to or known by either party in
        connection with its dealings with the other shall remain the property of
        the disclosing party and shall be maintained in confidence by the
        recipient and not disclosed by the recipient to any third party, without
        the prior written consent of the disclosing party. The recipient shall
        limit disclosure of the Confidential Information of the disclosing party
        to those of its employees and agents who require access to such
        information in order to assist the recipient to determine whether or not
        it would be interested in further business dealings with the disclosing
        party. The recipient shall not use and shall not permit any others to
        use such information in violation of any laws, including securities laws
        and regulations.

    c)  Upon request or upon the completion of the business dealings pursuant to
        which any item of Confidential Information is disclosed, the recipient
        thereof shall promptly return to the other all tangible material
        relating in any manner to any Confidential Information, whether supplied
        by the disclosing party or created by the recipient.

    d)  The provisions hereof shall not apply to those aspects of the the
        Confidential Information which:

         i.   prior to the disclosure thereof by the disclosing party to the
              recipient, were in the recipient's possession or control or in the
              public domain; or

         ii.  subsequent to the date hereof, shall have been made available to
              the general public or the disclosing party's competitors by the
              disclosing party or others having a legal right to do so without
              obligation to the disclosing party, or independently developed by
              the disclosing party without reference to or use of the
              Confidential Information.

8.   GENERAL PROVISIONS:

    a)     The validity, construction and performance of this Agreement will be
           governed by the laws of the state of Washington.

    b)     UNDER NO CIRCUMSTANCES WILL EITHER PARTY BE LIABLE FOR SPECIAL,
           PUNITIVE, INCIDENTAL OR OTHER ECONOMIC CONSEQUENTIAL DAMAGES,
           INCLUDING WITHOUT LIMITATION LOST PROFITS, OR FOR LOSS OF STORED,
           TRANSMITTED OF RECORDED DATA, HOWEVER ARISING, EVEN IF ADVISED OF THE
           POSSIBILITY OF SUCH DAMAGES. IN NO EVENT WILL EITHER BE REPONSIBLE OR
           LIABLE FOR ANY DAMAGES CAUSES BY THE FAILURE OF THE OTHER PARTY TO
           PERFORM ITS RESPONSIBILITIES.

    c)     Each party understands that the other may have other marketing
           relationships regarding its products, and that the marketing by
           either of other products, whether or not competitive to the other's
           products, shall not be deemed a conflict of interest.

    d)     Each party shall bear its own expenses in all performance under this
           Agreement.

    e)     The provisions of this Agreement, its attachments and exhibits
           constitute the entire agreement between the parties and supersede all
           prior agreements, oral or written, and all other communications
           relating to



                                       4
<PAGE>   5
           the subject matter hereof. No amendment or modification of any
           parovision of this Agreement shall be effective unless in a document
           with refers to this Agreement and is signed by both parties.

IN WITNESS WHEREOF, duly authorized representatives of the parties have executed
this Agreement as of the date above first written.

VS:                                        DSI:

VIEWSTAR CORPORATION,                      DIGITAL SYSTEMS INTERNATIONAL, INC.,
 a California Corporation                   a Washington Corporation



By                                         By
  ----------------------------------         -----------------------------------
     Its                                       Its
        ----------------------------              ------------------------------





                                       5

<PAGE>   1
                                                                    EXHIBIT 10.3

                                 LOAN AGREEMENT

         This LOAN AGREEMENT ("Agreement") is entered into as of this 20th day
of September, 1996 by and among VIEWSTAR CORPORATION, a California corporation
(the "Borrower"), and DIGITAL SYSTEMS INTERNATIONAL, INC., a Washington
corporation (the "Lender").

         WHEREAS, the Lender and the Borrower are entering into good faith
negotiations with respect to a potential merger of the two companies (any such
consummated transaction, a "Merger").

         WHEREAS, the Lender and the Borrower wish to enter into this Agreement
to establish the terms and conditions upon which the Lender shall make a term
loan to the Borrower for the purpose of funding Borrower's working capital
requirements prior to consummation of a Merger.

         NOW, THEREFORE, in consideration of the mutual covenants herein
contained, the parties hereto agree as follows:

1.       DEFINITIONS

         Unless otherwise provided, all accounting terms used herein shall be
construed in accordance with Generally Accepted Accounting Principles. The
following terms shall have the meanings assigned to them below in this Section 1
or in the provisions of this Agreement referred to below:

         "Business Day" - any day on which commercial banks in Seattle,
Washington are open for the conduct of normal banking business.

         "Default(s)" - the occurrence of any event or condition which, after
the giving of notice and/or the lapse of time (provided for in Section 6), would
become an Event of Default under Section 6.

         "Event(s) of Default" - see Section 6.

         "Generally Accepted Accounting Principles" or "GAAP" - generally
accepted accounting principles which are (i) consistent with the principles
promulgated or adopted by the Financial Accounting Standards Board and its
predecessors, in effect for the fiscal year of the Borrower ending December 31,
1996, and (ii) such that certified public accountants would, insofar as the use
of accounting principles is pertinent, be in a position to deliver an
unqualified opinion as to financial statements in which such principles have
been properly applied.

                                                                          PAGE 1
<PAGE>   2
         "Indebtedness" - all debt, capital leases and other similar monetary
obligations, whether direct or indirect, and all guaranties, endorsements (other
than endorsement of notes, bills and checks presented to banks for collection or
deposit in the ordinary course of business) and other contingent obligations in
respect of indebtedness of others, including any obligations to supply funds to
or in any other manner to invest, directly or indirectly, in the debtor, to
purchase indebtedness, or to purchase goods, supplies or services for the
purpose of enabling the debtor to make payment of the indebtedness or to assure
the owner of the indebtedness against loss, or otherwise.

         "IPO" - an intial public offering of shares of capital stock of the
Borrower.

         "Lending" - the disbursement by the Lender to the Borrower of the Loan
to be made hereunder.

         "Loan" - see Section 2.1.

         "Loan Documents" - collectively, this Agreement, the Promissory Note,
the Subordination Agreement and any other instruments or agreements executed and
delivered by the Borrower to the Lender in connection with the transactions
contemplated by this Agreement.

         "Maturity Date" - see Section 2.3.

         "Note" - see Section 2.3.

         "Obligations" - all indebtedness, obligations and liabilities of the
Borrower to the Lender arising after the date of this Agreement, direct or
indirect, joint or several, absolute or contingent, matured or unmatured,
liquidated or unliquidated, secured or unsecured, arising by contract, operation
of law or otherwise, whether arising or incurred under this Agreement or in
respect of the Loan and the Promissory Note or under the other Loan Documents or
any other agreements or instruments at any time evidencing or securing any
obligations of the Borrower to the Lender.

         "Person" - any individual, corporation, partnership, trust,
unincorporated association, joint stock company or other legal entity or
organization and any government or agency or political subdivision thereof.

         "Prime Rate" - the rate of interest designated by Seafirst Bank (or any
successor thereto) ("Seafirst) as its "Prime" rate; provided, however, that if
Seafirst Bank shall discontinue such designation, the Prime Rate shall
thereafter refer to the rate of interest charged to Lender for commercial loans
obtained by Lender in the ordinary course of its business.

                                                                          PAGE 2
<PAGE>   3
         "Promissory Note" - see Section 2.3.

         "Registration Statement" - the registration statement on Form S-1 filed
by the Borrower with the Securities and Exchange Commission in August 5, 1996.

         "Subordination Agreements" - the subordination agreements between the
Borrower and certain holders of its preferred stock referred to in Section 2.8.

         "Voting Stock" - stock or similar interests, of any class or classes
(however designated), the holders of which are at the time entitled, as such
holders, to vote for the election of a majority of the directors (or persons
performing similar functions) of the corporation, partnership, association or
other business entity involved, whether or not the right so to vote exists by
reason of the happening of a contingency.

2.       THE LOAN

         2.1      COMMITMENT TO LEND

         Subject to all of the terms and conditions set forth herein, including,
without limitation, full compliance with all of the conditions precedent set
forth in Section 4 below, the Lender agrees to loan to the Borrower an aggregate
principal amount of $4,000,000 (the "Loan").

         2.2      USE OF PROCEEDS

         The proceeds of the Loan shall be used by Borrower solely in the
ordinary course of the Borrower's business, including retirement of outstanding
capital lease obligations.

         2.3      PROMISSORY NOTE

         The Loan shall be evidenced by the Borrower's promissory note
substantially in the form of Exhibit A hereto, with appropriate insertions (the
"Promissory Note"), payable in the manner provided therein to the order of the
Lender in the original principal amount of $4,000,000. The Promissory Note shall
be dated the date of the disbursement of the Loan evidenced thereby and shall be
stated to mature on the fourth anniversary at the disbursement of the Loan (the
"Maturity Date"). The outstanding principal balance of the Promissory Note shall
bear interest from the date of disbursement of the Loan evidenced thereby
through the Maturity Date at a rate per annum equal to the Prime Rate from time
to time in effect plus one-half of one percent (0.50%) (subject to adjustment as
provided in the Promissory Note), provided that any amounts overdue shall bear
interest as provided in Section 2.7.

                                                                          PAGE 3
<PAGE>   4
         2.4 OPTIONAL PREPAYMENT OF PROMISSORY NOTE

         Any provision of this Agreement notwithstanding, the Borrower shall
have the right at any time to prepay, at its election, the Loan as a whole, and
from time to time to prepay the Loan in part, without premium or penalty, upon
not less than five Business Days' written or telephonic notice to the Lender,
provided that (a) each partial prepayment shall be in the principal amount of
$5,000 or an integral multiple thereof, and (b) on the date of each prepayment,
the Borrower shall pay accrued interest on the principal so prepaid to the date
of such prepayment. Any amounts so prepaid shall not be available for
reborrowing by the Borrower.

         2.5      COMPUTATIONS, ETC.

         All computations of interest on the Promissory Note shall be computed
on the basis of a 360-day year and paid for the actual number of days elapsed.
The outstanding amount of the Obligations as reflected on the Lender's records
from time to time shall, absent demonstrable error, be conclusive and binding on
the Borrower. Each change in the rate of interest applicable to the Loan
resulting from a change in the Prime Rate shall be effective on the date of each
change in the Prime Rate. Lender shall provide notice to Borrower of any change
in the rate of interest applicable to the Loan as soon as practicable following
the corresponding change in the Prime Rate. Whenever a payment hereunder or
under the Promissory Note becomes due on a day which is not a Business Day, the
due date for such payment shall be extended to the next succeeding Business Day
and interest and any applicable fees shall accrue during each such extension.

         2.6      FUNDS FOR PAYMENTS

         The Loan shall be made in immediately available funds by check or wire
transfer to a bank account designated in writing by Borrower. Borrower's
payments and prepayments under the Loan (whether of principal, interest or other
amount) shall be made in immediately available funds at the Lender's principal
office in Redmond, Washington.

         2.7      INTEREST ON OVERDUE AMOUNTS

         Each overdue amount payable to the Lender under this Agreement or the
Promissory Note (whether principal, interest or other amount) shall bear
interest from the due date thereof to the date such amount is paid in full
(whether before or after judgment) at a rate per annum at all times equal to two
percentage points (2.0%) above the Prime Rate from time to time in effect,
compounded daily and payable on demand.

                                                                          PAGE 4
<PAGE>   5
                  2.8      SUBORDINATION

         The Obligations shall be subordinate to the Borrower's outstanding bank
line of credit and existing capital lease obligations, and Lender agrees to
execute and deliver from time to time any commercially reasonable subordination
agreements which such lenders or any other institutional lenders (including,
without limitation, banks, insurance companies and leasing companies) shall
require in connection with the Borrower's Indebtedness to such parties. Except
for the Indebtedness described in the first sentence of this Section 2.8, the
Obligations shall have priority over any other Indebtedness of the Borrower,
including, without limitation, any outstanding Indebtedness to the Borrower's
shareholders. Prior to incurring any Indebtedness as to which the Obligations
shall have priority, the Borrower hereby agrees to obtain executed Subordination
Agreements in substantially the form of Exhibit B hereto from each prospective
obligee of any such Indebtedness.

3.       REPRESENTATIONS AND WARRANTIES

         The Borrower represents and warrants to the Lender that:

         3.1      CORPORATE EXISTENCE AND GOOD STANDING, ETC.

         The Borrower is a corporation duly organized, validly existing and in
good standing under the laws of the state of California and has all requisite
corporate power and authority to own and operate its properties, to carry on its
business as now conducted and proposed by the Borrower to be conducted, to enter
into this Agreement and the other Loan Documents and to consummate the
transactions contemplated hereby and thereby. The Borrower is duly qualified and
in good standing in each jurisdiction in which the property owned, leased or
operated by it or the nature of the business conducted by it makes such
qualification necessary and where the failure to be so qualified has, or would
be reasonably expected (so far as can be foreseen at the time) to have, a
material adverse effect on the business, properties, operations, condition
(financial or other) or prospects of the Borrower. The Borrower has obtained
from the appropriate governmental authorities all approvals and licenses
necessary for the conduct of its business and operations as currently conducted,
which approvals and licenses are valid and remain in full force and effect,
except where the failure to have obtained such approvals or licenses or the
failure of such licenses and approvals to be valid and in full force and effect
does not have, and would not be reasonably expected (so far as can be foreseen
at the time) to have, a material adverse effect on the business, properties,
operations, condition (financial or other) or prospects of the Borrower.

                                                                          PAGE 5
<PAGE>   6
         3.2 CORPORATE POWER; CONSENTS; ABSENCE OF CONFLICT WITH OTHER
             AGREEMENTS, ETC.

         The execution, delivery and performance of this Agreement and the other
Loan Documents by the Borrower and the borrowings and transactions contemplated
hereby and thereby:

         (a) are within the Borrower's corporate powers, and have been duly
authorized by all necessary corporate action or the part of the Borrower;

         (b) except for any required consents or any conflicts, breaches or
contraventions (i) which shall be obtained or waived within 10 business days of
the date hereof or (ii) under any indenture, agreement, lease, instrument or
undertaking under which no Indebtedness is outstanding (and the Borrower agrees
that it will incur no Indebtedness under any such indenture, agreement, lease,
instrument or undertaking without obtaining any required consent or waiver)

                  (i) do not require any approval or consent of, or filing with,
         any governmental agency or authority bearing on the validity of such
         instruments and borrowings which is required by law or the regulation
         of any such agency or authority, and are not in contravention of law or
         the terms of the Borrower's Articles of Incorporation or Bylaws, or any
         amendment thereof;

                  (ii) will not conflict with or result in any breach or
         contravention of or the creation of any lien under any indenture,
         agreement, lease, instrument or undertaking to which the Borrower is a
         party or by which it or any of its properties are bound, ; and

         (c) are and will be valid and legally binding obligations of the
Borrower, enforceable in accordance with their respective terms, except as such
enforcement may be limited by bankruptcy, insolvency, reorganization, moratorium
or similar laws relating to or affecting generally the enforcement of creditors'
rights, and except to the extent that the availability of equitable remedies
with respect to such obligations may be subject to the discretion of the court
before which any proceedings for such remedies may be brought.

         3.3      NO DEFAULT

         No Default or Event of Default under this Agreement exists at the
delivery of this Agreement.

                                                                          PAGE 6
<PAGE>   7
         3.4      FINANCIAL STATEMENTS

         There has been furnished to the Lender the (a) audited consolidated
financial statements of the Borrower as of and for the fiscal years ended
December 31, 1993, 1994 and 1995, including the reports and opinions of the
Borrower's independent auditors relating thereto, and (b) unaudited consolidated
financial statements of the Borrower as of and for the fiscal quarters ended
March 31, 1996 and June 30, 1996, each consisting of a balance sheet and
statements of income and changes in financial position (collectively, the
"Financials"). The Financials have been, and all financial statements to be
furnished in accordance with Section 5.1 hereof will be, prepared in accordance
with the books and records of the Borrower and fairly present or will fairly
present the financial condition of the Borrower at the dates thereof and the
results of operations for the periods indicated (subject, in the case of
unaudited financial statements, to normal year-end adjustments, none of which
are or will be material). The Financials have been, and all financial statements
to be furnished in accordance with Section 5.1 hereof will be, prepared in
accordance with GAAP. Since the date of the most recent Financials, there has
been no material adverse change in the financial condition, results of
operations or business of the Borrower.

         3.5      DISCLOSURE

         This Agreement, the other Loan Documents, the Registration Statement
and all certificates and statements furnished by or on behalf of the Borrower to
the Lender in connection herewith and therewith do not contain any untrue
statement of a material fact or omit to state a material fact necessary in order
to make the statements contained herein and therein not misleading. There is no
fact known to the Borrower or to any executive officer of the Borrower which
materially adversely affects, or in the future may (so far as they can now
foresee) materially adversely affect, the business, assets, or financial
condition of the Borrower which has not previously been disclosed to the Lender.

         3.6      LEGAL PROCEEDINGS

         There is no action, suit, or proceeding pending or threatened, at law
or in equity, or before or by any governmental authority, domestic or foreign,
which might result in any materially adverse change in Borrower's financial
condition or operations, or which would involve the probability of any judgment
or liability resulting in an uninsured payment by the Borrower of at least
$50,000 other than an action by a former salesperson of the Borrower for
commissions allegedly due, for which the Borrower has established an accounting
reserve.

                                                                          PAGE 7
<PAGE>   8
4.       CONDITIONS OF LENDING

         The obligation of the Lender to make the Loan hereunder shall be
subject to the following conditions precedent:

         4.1      EXECUTION AND DELIVERY OF LOAN DOCUMENTS

         All of the Loan Documents shall have been executed and delivered by the
Borrower (and any other party thereto) to the Lender.

         4.2      REPRESENTATIONS AND WARRANTIES

         The representations and warranties contained in Section 3 hereof and in
each of the other Loan Documents shall have been true and correct as of the date
on which made and shall also be true and correct at and as of the date of the
Lending with the same effect as if made at and as of such date.

         4.3      PERFORMANCE; NO DEFAULT

         The Borrower shall have performed and complied with all terms and
conditions of the Loan Documents, and each of them, required to be performed or
complied with by it prior to or at the time of the Lending, and at the time of
the Lending, there shall exist no Default or Event of Default or condition
which, with either the giving of notice or the lapse of time or both, would
result in a Default or Event of Default under this Agreement, or under any of
the Loan Documents upon consummation of the Lending.

         4.4      CORPORATE ACTION

         All corporate action required by law of the Borrower necessary for the
valid execution, delivery and performance by the Borrower of the Loan Documents
shall have been duly and effectively taken.

         4.5      PROCEEDINGS AND DOCUMENTS

         All proceedings in connection with the transactions contemplated by
this Agreement, the Loan Documents and all documents incident hereto and
thereto, shall be reasonably satisfactory in substance and in form to the Lender
and its counsel, and the Lender and its counsel shall have received all
information and such counterpart originals or certified or other copies of such
documents as the Lender or its counsel may reasonably request.

                                                                          PAGE 8
<PAGE>   9
5.       COVENANTS

         The Borrower covenants and agrees that, so long as the Promissory Note
is outstanding:

         5.1      FINANCIAL STATEMENTS

         The Borrower shall deliver to the Lender such financial statements of
the Borrower (including, without limitation, quarterly and audited annual
financial statements), all in reasonable detail and prepared in accordance with
GAAP andall documents filed with the Securities and Exchange Commission under
the Securities Act of 1933 or the Securities Exchange Act of 1934, promptly
after the preparation of such financial statements or the filing of such
documents, and such other data as the Lender may reasonably request.

         5.2      FURTHER ASSURANCES

         The Borrower shall cooperate with the Lender and execute such further
instruments and documents as the Lender shall reasonably request to carry out to
its satisfaction the transactions contemplated by this Agreement and the other
Loan Documents.

         5.3      NOTICES

         Borrower shall promptly give written notice to Lender of (a) all
litigation affecting Borrower where the uninsured amount is at least $100,000;
(b) any substantial dispute which may exist between Borrower and any
governmental regulatory body or law enforcement authority (c) any Default or
Event of Default or any default under any other agreement between Borrower and
Lender or any other creditor, or any event which, upon notice or lapse of time,
or both, would become an Event of Default (d) any other matter which has
resulted or is expected by the Borrower to result in a material adverse change
in Borrower's financial condition or operations. Lender shall maintain the
confidentiality of any nonpublic information received pursuant to this Section
5.3 which Borrower designates as confidential information.

         5.4      INSURANCE

         Borrower shall maintain in effect insurance with responsible insurance
companies in such amounts and against such risks as is customarily maintained by
persons engaged in businesses similar to that of Borrower, including, without
limitation, a policy covering products liability and errors and omissions with
policy limits of not less than $1,000,000. Borrower agrees to deliver to Lender
such

                                                                          PAGE 9
<PAGE>   10
evidence of insurance as Lender may reasonably require and, within 30 days after
notice from Lender, to obtain such additional insurance as Lender may reasonably
request.

         5.5      COMPLIANCE WITH LAWS

         Borrower shall comply with all applicable federal, state and municipal
laws, ordinances, rules and regulations relating to its properties, charters,
businesses and operations, including compliance with all minimum funding and
other requirements related to any of Borrower's employee benefit plans.

         5.6      DIVIDENDS; INSIDER LOANS

         Borrower shall not without the written consent of Lender (a) pay any
dividends or otherwise distribute earnings or (b) make any loans or advances to
any of its officers, directors or shareholders (other than (i) loans made to
officers, directors or employees for the sole purpose of allowing such persons
to exercise options to purchase capital stock of the Borrower or (ii) loans or
advances to officers or employees in the ordinary course of business and not
exceeding $50,000), or assume, guarantee, endorse or otherwise become directly
or contingently liable in connection with any obligation of any of its officers,
directors or shareholders or any third party.

         5.7      CERTAIN TRANSACTIONS

         Borrower shall not without the written consent of Lender, liquidate,
dissolve, enter into any merger or consolidation, create or acquire any
subsidiaries or, except in the ordinary course of business, sell, lease,
transfer or distribute any of its assets. The Lender shall not withhold its
consent to any such transaction unless the Lender reasonably believes that such
transaction will materially adversely affect Borrower's ability to repay the
Obligations, except that the Lender may withhold its consent for any reason if
the transaction consists of the acquisition of the Borrower by another person or
entity with total assets in excess of $500,000,000 for a purchase price of
$50,000,000 or more..

6.       EVENTS OF DEFAULT; ACCELERATION

         If any of the following events ("Events of Default") shall occur and be
continuing:

         (a) if the Borrower shall default in the payment of any principal or
interest or other amounts under the Promissory Note, whether at maturity or at
any date fixed for payment or prepayment or by declaration or otherwise; or

                                                                         PAGE 10
<PAGE>   11
         (b) if the Borrower shall default in the performance of or compliance
with any other term contained herein or in any of the other Loan Documents and
such default shall not have been remedied within seven days after occurrence
thereof; or

         (c) if any representation, warranty or certification made in writing by
or on behalf of the Borrower herein, in any of the Loan Documents or in
connection with any of the transactions contemplated hereby shall prove to have
been false or incorrect in any material respect on the date as of which made; or

         (d) if the Borrower shall default (as principal or guarantor or other
surety) in the payment of any principal of, premium, if any, or interest on any
Indebtedness (other than the Borrower's obligations to the Lender hereunder), or
shall default in the performance of or compliance with any other obligation
contained in any agreement or instrument evidencing or securing such
Indebtedness, and such default gives to the holder of such Indebtedness the
right to accelerate such Indebtedness (whether or not the holder has, in fact,
accelerated such Indebtedness), or the right to take action with respect to any
collateral securing such Indebtedness, and such default shall continue for
longer than the period of grace, if any, specified therein; or

         (e) if either the Borrower makes an assignment for the benefit of
creditors, or petitions or applies for the appointment of a liquidator or
receiver or custodian (or similar official) of the Borrower or of any
substantial part of its assets, or commences any proceeding or case relating to
the Borrower under any bankruptcy, reorganization, arrangements, insolvency,
readjustment of debt, dissolution or liquidation or similar law of any
jurisdiction, now or hereafter in effect; or

         (f) if any such petition or application is filed or any such proceeding
or case is commenced against the Borrower and the Borrower indicates its
approval thereof, consent thereto or acquiescence therein, or an order is
entered appointing any such liquidator or receiver or custodian (or similar
official), or adjudicating the Borrower bankrupt or insolvent, or approving a
petition in any such proceeding or a decree or order for relief is entered in
respect of the Borrower in an involuntary case under any bankruptcy,
reorganization, arrangements, insolvency, readjustment of debt, dissolution or
liquidation or similar law of any jurisdiction, now or hereafter in effect, and
such order remains in effect for more than 30 days, whether or not consecutive;
or

         (g) if any order is entered in any proceeding by or against the
Borrower decreeing or permitting its dissolution or split-up or the winding up
of its affairs; or

         (h) if the Borrower shall generally not pay its debts as such debts
become due, or shall admit in writing its inability to pay its debt generally;

                                                                         PAGE 11
<PAGE>   12
then and in each and every such event the Lender may, by written notice to the
Borrower, declare all amounts owing with respect to the Promissory Note to be
due and payable (unless there shall occur any event specified in any of
paragraphs (f), (g) or(h) of this Section 6, in which case all amounts owing
with respect to this Agreement and the Promissory Note shall automatically
become due and payable), and thereupon in either instance the same shall
forthwith mature and become immediately due and payable together with interest
thereon and all other amounts then owing under this Agreement and the Promissory
Note, without presentment, demand, protest or notice, all of which are hereby
waived.

7.       REMEDIES ON DEFAULT

         7.1      RIGHTS OF LENDER

         In case any one or more of the Events of Default specified in Section 6
shall have occurred and be continuing, and whether or not all amounts owing with
respect to this Agreement and the Promissory Note have been declared due and
payable as provided in Section 6, the Lender may proceed to protect and enforce
its rights by suit in equity, action at law and/or other appropriate proceeding,
whether such rights arise under this Agreement or otherwise whether for the
specific performance of any covenant or agreement contained in this Agreement,
the Promissory Note or any other Loan Document, and shall have and may exercise
all available rights and remedies, including, without limitation, the obtaining
of an ex parte appointment of a receiver.

         7.2      SET-OFF

         During the continuance of any Event of Default, any deposits or other
sums credited by or due from any of the Lender to the Borrower may be set off
against any and all liabilities, direct or indirect, absolute or contingent, due
or to become due, now existing or hereafter arising, of the Borrower to the
Lender.

8.       EXPENSES

         Each party shall bear its own expenses incurred in connection with this
Agreement, the other Loan Documents and the transactions contemplated hereby and
thereby; provided, however that Borrower agrees to reimburse Holder on demand
for all legal fees and other costs and expenses incurred in collecting and
enforcing the Promissory Note.

9.       SURVIVAL OF COVENANTS

         All covenants, agreements, representations and warranties made herein
and in any certificates or other papers delivered by or on behalf of the
Borrower pursuant

                                                                         PAGE 12
<PAGE>   13
hereto are material and shall be deemed to have been relied upon by the Lender,
any investigation heretofore or hereafter made by it notwithstanding, and shall
survive the making of the Loan, as herein contemplated, and shall continue in
full force and effect so long as the Loan or other amounts due under this
Agreement or the Promissory Note remain outstanding and unpaid. All statements
contained in any certificate or other paper delivered to the Lender at any time
by or on behalf of the Borrower pursuant hereto or in connection with the
transactions contemplated hereby shall constitute representations and warranties
by the Borrower hereunder.

10.      PARTIES IN INTEREST

         All of the terms of this Agreement shall be binding upon and inure to
the benefit of and be enforceable by the parties hereto and their respective
successors and assigns, provided that the Borrower shall not assign or transfer
its rights hereunder without the prior written consent of the Lender.

11.      NOTICES

         Except as otherwise provided herein, any notice to the Borrower or to
the Lender shall be in writing, and such notice shall be given by delivery in
hand; by telecopy with original posted first class mail, postage prepaid, within
three days thereafter; by certified mail, postage prepaid, return receipt
requested; or by private courier requesting evidence of receipt as a part of its
service, addressed as follows:

         (a)      if to the Borrower, as follows:

                           ViewStar Corporation
                           1101 Marina Village Parkway
                           Alameda, California  94501
                           Attn:  President

                  with a copy to:

                           Wilson Sonsini Goodrich & Rosati
                           650 Page Mill Road
                           Palo Alto, California  94304-1050
                           Attn:  Robert B. Jack, Esq.

                                                                         PAGE 13
<PAGE>   14
         (b)      if to the Lender, as follows:

                           Digital Systems International, Inc.
                           6464 185th Avenue N.E.
                           Redmond, Washington  98052
                           Attn: General Counsel

                  with a copy to:

                           Perkins Coie
                           1201 Third Avenue, 40th Floor
                           Seattle, Washington 98101
                           Attn: Michael E. Stansbury, Esq.

or to such other address as may be designated in writing by either party from
time to time in accordance herewith. Notices shall be deemed delivered upon the
earliest to occur of delivery by hand, when so telecopied, when so placed in the
mails or when delivered to such delivery service as aforesaid.

12.      GOVERNING LAW

         This Agreement shall be construed, enforced and otherwise governed by
the laws of the state of Washington.

13.      ENTIRE AGREEMENT

         This Agreement and any other documents executed in connection herewith
express the entire understanding of the parties with respect to the transactions
contemplated hereby. Neither this Agreement nor any term hereof may be changed,
waived, discharged or terminated orally or in writing, except as provided in
Section 14.

14.      CONSENTS, AMENDMENTS, WAIVERS, ETC.

         Except as otherwise expressly set forth in any particular provision of
this Agreement, any consent or approval required or permitted by this Agreement
to be given by the Lender may be given, and any term of this Agreement or of any
other instrument related hereto or mentioned herein may be amended, and the
performance or observance by the Borrower of any term of this Agreement may be
waived (either generally or in a particular instance and either retroactively or
prospectively) with, but only with, the written consent of the Lender. No waiver
shall extend to or affect any obligation not expressly waived or impair any
right consequent thereon. No course of

                                                                         PAGE 14
<PAGE>   15
dealing or delay or omission on the part of the Lender in exercising any right
shall operate as a waiver thereof or otherwise be prejudicial thereto. No notice
to or demand upon the Borrower shall entitle the Borrower to other or further
notice or demand in similar or other circumstances.

15.      WAIVER OF JURY TRIAL; CONSENT TO JURISDICTION

         The borrower hereby waives any right it may have to trial by jury in
any action or proceeding of any kind or nature, in any court in which an action
may be commenced, arising out of or in connection with this Agreement, any other
Loan Document or any other matters related thereto. The Borrower hereby consents
to the exclusive jurisdiction of the United States District Court for the
Western District of Washington or, at the option of the Lender, any court in
which the Lender decides to initiate legal or equitable proceedings concerning
this Agreement, any other Loan Documents or any other matters related thereto in
which the court has subject matter jurisdiction over the matter and controversy;
and to the extent permitted by law, the Borrower hereby waives personal service
of the summons and complaint or other process of the papers issued therein and
agrees that service may be made by registered or certified mail addressed to the
Borrower at its address set forth herein.

16.      MISCELLANEOUS

         The rights and remedies herein expressed are cumulative and not
exclusive of any other rights which the Lender would otherwise have. Any
instruments required by any of the provisions hereof to be in the form annexed
hereto as an exhibit shall be substantially in such form with such changes
therefrom, if any, as may be approved by the Lender. The captions in this
Agreement are for convenience of reference only and shall not define or limit
the provisions hereof. This Agreement or any amendment may be executed in
separate counterparts, each of which when so executed and delivered shall be an
original, but all of which together shall constitute one instrument. In making
proof of this Agreement, it shall not be necessary to produce or account for
more than one counterpart executed by the party against which enforcement
thereof is sought.

         IN WITNESS WHEREOF, the parties have caused this Agreement to be
executed under seal by their duly authorized undersigned officers as of the date
first written above.

                                                                         PAGE 15
<PAGE>   16
                                       VIEWSTAR CORPORATION

                                       By:_____________________________
                                            Name:
                                            Title:

                                       DIGITAL SYSTEMS
                                       INTERNATIONAL, INC.

                                       By:______________________________
                                            Name:
                                            Title:

                                                                         PAGE 16
<PAGE>   17
                                    EXHIBIT A

                                [PROMISSORY NOTE]

                                                                          PAGE 1
<PAGE>   18
                                    EXHIBIT B

                            [SUBORDINATION AGREEMENT]

                                                                          PAGE 1

<PAGE>   1
                                                                    EXHIBIT 99.1

Contacts:  Steve L. Adams                          John Flavio
           Sr. Vice President, Marketing, DSI      Sr. Vice President, CFO, DSI
           (206) 869-3749                          (206) 556-8088

Contact:   Shirish Hardikar
           Vice President, Marketing, ViewStar
           (510) 337-2157

                        DSI AND VIEWSTAR ANNOUNCE MERGER

          COMBINED COMPANY TO ADDRESS FAST GROWING ENTERPRISE CUSTOMER
               MANAGEMENT AND BUSINESS PROCESS APPLICATIONS MARKET

Redmond, WA - October 14, 1996 - Digital Systems International, Inc. (NASDAQ:
DGTL), a global leader in call center solutions, and ViewStar Corporation, a
market leader in enterprise business process applications, today jointly
announced the signing of a definitive agreement to merge in a tax free,
stock-for-stock transaction valued at approximately $80M.

Under the terms of the merger agreement, approved by the boards of both
companies, ViewStar shareholders would receive approximately 3.9 million shares
of DSI stock in exchange for all outstanding ViewStar shares and vested options.
The merger, which is expected to close before the end of the year, is subject to
certain conditions, including the approval of the shareholders of both DSI and
ViewStar.

The combined company will provide an integrated suite of applications designed
to enable large and medium-sized companies to automate, enhance, and optimize
their customer interaction and customer service-intensive business processes
across the enterprise. The total enterprise customer management market is
expected to grow from $1.3 billion in 1995 to $4.8 billion in 1999
(AberdeenGroup, May 1996). After the merger, the DSI/ViewStar combination will
be one of the leading industry application providers with anticipated combined
sales of over $110 million in 1996.

                                     -more-
<PAGE>   2
"Our customers are increasingly seeking to integrate advanced telephony and call
management technologies with enterprise data management and business process
applications to improve the quality of their customer contacts, service, and
relationships," said Pat Howard, President and CEO of DSI. "We are witnessing
the rapid evolution of traditional call centers into full-function customer
service centers providing an integrated point for customer interaction and
service. Call centers are not just for telephone calls; in fact, the calls are
often not phone calls anymore--they are hits on a Web site. The combination of
DSI's proven computer telephony integration (CTI) expertise and callflow
products with ViewStar's leading enterprise workflow and business process
automation software uniquely positions the combined company to provide
world-class, fully integrated customer interaction and service applications to
this growing market."

"We decided to merge to gain a leadership position in the emerging market for
customer service and business process applications," said Kamran Kheirolomoom,
President and CEO of ViewStar. "Quality customer care and service are rapidly
becoming the primary driver in many reengineering and business process
automation efforts. Our customers are increasingly utilizing our business
process automation software to automate and enhance their core business
processes, integrating their back-office and front-office operations, with a
strategic focus on improved customer interaction and service. DSI and ViewStar's
combined business momentum, shared market vision, complementary technology and
products, synergistic sales and distribution channels, and extensive blue-chip
customer bases will provide us with a solid platform to launch the new company."

When completed, the merger will supersede a Joint Marketing and Product
Development Agreement signed by the two companies in September 1996. Under the
terms of that agreement, DSI agreed to provide ViewStar $4M of debt financing to
fund joint development efforts. As a result of these efforts, it became apparent
that an even closer integration of operations through a merger could benefit
both sets of customers as well as the shareholders of DSI and ViewStar.

The first product development effort under the joint marketing and product
development agreement will be to integrate DSI's high-performance call
management system, Mosaix, and CTI middleware, ADAPTS, with ViewStar's
enterprise document workflow software to deliver an integrated, customer service
workflow application. The application will be targeted at large, enterprise call
centers. In addition, the two companies are planning to deliver in 1997, a suite
of NT-based customer service and business process applications providing
customer interaction, integrated workflow and callflow automation, and customer
information management across the enterprise.

After the closing of the merger, Mr. Kheirolomoom is expected to serve as the
new DSI President and will report to DSI Chairman and CEO, Pat Howard.
Kheirolomoom will lead the ViewStar operations, to be renamed the Enterprise
Applications Group, as well

                                       -2-
<PAGE>   3
                                     -more-

as the combined company's product development and marketing teams. In addition
to Kheirolomoom, executives reporting to CEO Pat Howard will be Nick Tiliacos,
Sr. VP, Call Center Systems Group, Tom Clark, Sr. VP, Professional Services
Group, and John Flavio, Sr. VP and CFO.

Founded in 1986, ViewStar's products address mission-critical, line-of-business
workflow applications involving structured data and unstructured information
including imaged documents, faxes, electronic documents, digitized voice
messages, mainframe reports and Web documents. The company's products are used
in a wide variety of applications including consumer and mortgage lending,
claims servicing, underwriting and customer service. ViewStar has over 300
installations in a number of industries including financial services, insurance,
healthcare, utilities, energy, telecommunications and government. Headquartered
in Alameda, California, the company has sales offices in North America, London
and Paris, as well as application and solutions partners in Europe, Asia,
Australia and the Middle East.

DSI is a global provider of call center solutions enabling customers to improve
the quality and effectiveness of their customer contacts, service, and
relationships. The company has more than 1,000 installations worldwide,
including blue chip customers in major financial institutions, utilities,
telecommunications companies, education, government and health-care
organizations. Headquartered in Redmond, Washington, DSI has sales offices in
Wilmington, Chicago, Atlanta, and London, with Value Added Resellers in North
America, Asia, Australia, South America, and Europe. Information about DSI can
be accessed at www.dgtl.com.

This press release includes forward-looking statements. When used in these
contexts, the words "believes," "anticipates," "expects," and similar
expressions are intended to identify forward-looking statements. Readers are
cautioned not to place undue reliance on these forward-looking statements, which
speak only as of the date of such statement. The Company undertakes no
obligation to publicly release results on any revision of such forward-looking
statements that may be made to reflect events or circumstances after the date of
any such statement or to reflect the occurrence of unanticipated events. In
addition, various factors could cause the Company's actual results to differ
materially from those expressed in the Company's forward-looking statements in
any of these contexts, including without limitation, those factors discussed in
the Company's Annual Report on Form 10-K for the year ended December 31, 1995,
and quarterly reports on Form 10-Q for the quarters ended March 31, 1996, and
June 30, 1996.

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