FEDERAL DATA CORP /FA/
8-K, 1998-03-16
COMPUTERS & PERIPHERAL EQUIPMENT & SOFTWARE
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                                 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


     DATE OF REPORT (Date of earliest event reported):  February 28, 1998


                         FEDERAL DATA CORPORATION
          (Exact name of Registrant as specified in its charter)


         DELAWARE                       333-36447               52-0940566
(State or other jurisdiction      (Commission File No.)     (I.R.S. Employer 
 of incorporation)                                        Identification Number)


                             4800 Hampden Lane
                             Bethesda, MD  20814
             (Address of principal executive offices) (Zip Code)


                              (301) 986-0800
            (Registrant's telephone number, including area code)

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Item 2.  Acquisition or Disposition of Assets

On February 28, 1998, Federal Data Corporation (the "Company"), acquired 
substantially all of the assets and business of the Telos Information Systems 
Division ("TIS") from Telos Corporation ("Telos").  The total purchase price 
was $14.7 million in cash subject to an audit of the closing balance sheet. 
TIS has operations in Pasadena, CA and Greenbelt, MD which provide 
engineering and information technology services to the Jet Propulsion 
Laboratory and other NASA, National Oceanic and Atmospheric Administration 
and Defense Information Systems Agency customers.  As part of the agreement 
both the Company and Telos agreed to seek novation of certain Jet Propulsion 
Laboratory contracts.  If the novation of the contracts is not received by 
April 15, 1998, the purchase agreement with Telos will be cancelled and the 
purchase price will be returned to the Company.  

The Company financed its acquisition of TIS with funds available under the 
$75 million secured revolving credit facility provided to the Company by 
Bankers Trust Company, Bank of Boston, The Bank of New York, BTM Capital 
Corporation, Creditanstalt Bankverein, Credit Lyonnais New York Branch, First 
Source Financial LLP, First Union Commercial Corp. and IBJ Schroder Bank & 
Trust Company.

Item 7. Financial Statements, Pro Forma Financial Information and Exhibits

        (a)  Financial Statements of Business Acquired

        It is not practical to provide the required financial statements for 
        TIS at this time.  The statements will be filed as soon as they are 
        prepared and not later than May 14, 1998.

        (b)  Pro Forma Financial Information

        It is not practical to provide the required pro forma financial 
        statements for the Company at this time.  The statements will be filed 
        as soon as they are prepared and not later than May 14, 1998.

        (c)  Exhibits

   2.1  Asset Purchase Agreement dated as of February 20, 1998 by and among 
        Telos Corporation and NYMA, Inc.  NYMA, Inc. is a wholly owned   
        subsidiary of Federal Data Corporation.

   2.2  Interim Agreement dated as of February 28, 1998 by and among Telos 
        Corporation and NYMA, Inc.  


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                                  SIGNATURES

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 hereunto duly authorized.

                                       FEDERAL DATA CORPORATION

                                       By: /s/  James M.  Dean
                                           -------------------------------
                                           James M. Dean
                                           Vice President and
                                           Chief Financial Officer

                                           Date: March 16, 1998

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                               ASSET PURCHASE AGREEMENT


                            dated as of February 20, 1998



                                     by and among


                                  Telos Corporation,
                               a California corporation
                                     ("Seller"),


                                  Telos Corporation,
                                a Maryland corporation
                                   ("Shareholder")


                                         and


                                     NYMA, INC.,
                                a Maryland corporation
                                    ("Purchaser")




                        Covering the Purchase of Substantially
                                 All of the Assets of


                              TELOS INFORMATION SYSTEMS,
                           a division of Telos Corporation


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                               ASSET PURCHASE AGREEMENT

     THIS ASSET PURCHASE AGREEMENT (this "Agreement") is made and entered as 
of the 20th day of February, 1998, by and among TELOS CORPORATION, a Maryland 
corporation ("Shareholder"), TELOS CORPORATION, a California corporation 
("Seller") and NYMA, INC., a Maryland corporation ("Purchaser").

                                 W I T N E S S E T H

     WHEREAS, Seller is the owner of all right, title and interest in and to 
the assets described on Schedule 2.1 hereto (the "Assets"), with such assets 
being substantially all of the assets currently used in the Telos Information 
Systems division operated by the Seller at the Jet Propulsion Laboratory and 
certain other locations, (the "Business") as more particularly described in 
paragraph 1.1 hereof, and with its principal executive offices at Seller's 
office in Pasadena, California;

     WHEREAS, Shareholder is the owner of all of the outstanding capital 
stock of Seller and reasonably expects to benefit from the transactions 
contemplated by this Agreement;

     WHEREAS, Seller desires to sell the Assets to Purchaser and Purchaser 
desires to acquire the Assets from Seller, all pursuant to this Agreement as 
hereinafter provided; and

     WHEREAS, the parties hereto desire to set forth certain representations, 
warranties and covenants made by each to the other as an inducement to the 
execution and delivery of this Agreement, and to set forth certain additional 
agreements related to the transactions contemplated hereby;

                                      Agreement

     NOW, THEREFORE, for and in consideration of the premises, the mutual 
representations, warranties and covenants herein contained and other good and 
valuable consideration, the receipt and sufficiency of which are hereby 
acknowledged, the parties hereby agree as follows:

     1.   GENERAL DEFINITIONS.  For purposes of this Agreement, the following 
terms shall have the respective meanings set forth below:

          1.1. Business shall mean the business of Telos Information Systems 
Division, as operated as of the date hereof, and more particularly described 
as the provision of support effort personnel as requested by customers under 
the Contracts (as defined in Section 4.8 hereof) to work under such 
customers' direction on specific technical work assignments at 
customer-controlled facilities or such other locations as may be designated 
by such customers.  This 

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definition does not include the provision of labor in support of Seller or 
Shareholder product or solution sales.

          1.2. Governmental Authority shall mean any and all foreign, 
federal, state or local governments, governmental institutions, public 
authorities and governmental entities and courts.

          1.3. Governmental Requirement shall mean any and all laws 
(including, but. not limited to, applicable common law principles), statutes, 
ordinances, codes, rules, regulations, orders, judgments, writs, injunctions, 
decrees, decisions or pronouncements, promulgated, issued, passed or set 
forth by any Governmental Authority.

          1.4. Net Assets of the Seller are as defined in Section 3.2 hereof.

          1.5. Person shall mean any natural person, any Governmental 
Authority and any entity the separate existence of which is recognized by any 
Governmental Authority or Governmental Requirement, including, but not 
limited to, corporations, partnerships, joint ventures, joint stock 
companies, trusts, estates, companies and associations, whether organized for 
profit or otherwise.

          1.6. Taxes.  "Tax" and "Taxes" shall mean any and all income, 
excise, franchise or other taxes and all other charges or fees imposed or 
collected by any Governmental Authority or pursuant to any Governmental 
Requirement, and shall also include any and all penalties, interest, 
deficiencies, assessments and other charges with respect thereto.

          1.7. Affiliate of any Person shall mean any Person Controlling, 
Controlled by or under common Control with such Person.

          1.8. Control and all derivations thereof shall mean the possession, 
direct or indirect, of either (i) the ownership of or ability to direct the 
voting of, as the case may be, fifty-one percent (51%) or more of the equity 
interests, value or voting power in any Person or (ii) the power to direct or 
cause the direction of the management and policies of a Person, whether 
through the ownership of voting securities, by contract or otherwise.

          1.9. Best Knowledge of Seller means actual knowledge of either 
Seller or Shareholder after reasonable inquiry and investigation. For 
purposes hereof, Seller and Shareholder shall be deemed to have knowledge of 
a matter if any of the following persons has knowledge of it:  Robert 
Spearing, Kurt Brewer, Walter Natzic, Lorenzo Tellez, David Aldrich, William 
L.P. Brownley, Mark Hester and John Wood.

     2.   PURCHASE AND SALE OF THE ASSETS; CLOSING DATE.

          2.1. Purchase and Sale.  Seller hereby agrees to sell, assign, 
transfer and deliver to Purchaser all right, title and interest in and to the 
Assets (as more fully described (either directly or by reference) on Schedule 
2.1 hereto), free and clear of any liens or encumbrances of any nature 
whatsoever (except for any liens, encumbrances or obligations, if any, 
expressly

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assumed by Purchaser hereunder). The parties agree that the sale of the 
Assets is intended to include the "good will" (such as reputation, customer 
contacts, etc.) associated with the Business.  Purchaser hereby agrees to 
purchase from Seller the Assets in consideration for the Purchase Price (as 
hereinafter defined) payable as set forth in Section 3 below.

          2.2. Delivery of Assets and Transfer Documents.  At the Closing 
(hereinafter defined in Section 2.3), Seller shall have taken all steps 
necessary to put Purchaser in possession of the Assets, free and clear of any 
liens or encumbrances of any nature whatsoever (except for liens, 
encumbrances or obligations, if any, expressly assumed by Purchaser 
hereunder), and have delivered to Purchaser (i) a duly executed warranty bill 
of sale covering the Assets, in a form  and containing terms and provisions 
reasonably satisfactory to Purchaser, (ii) duly executed assignments for all 
accounts receivable, tradenames and similar intangible property included in 
the Assets, in form and substance acceptable to Purchaser and in recordable 
form as appropriate, and (iii) such other duly executed transfer and release 
documents which Purchaser has reasonably requested to evidence the transfer 
of the Assets to Purchaser free and clear of any liens or encumbrances of any 
nature whatsoever (except for liens, encumbrances or obligations, if any, 
expressly assumed by Purchaser hereunder).

          2.3. Closing; Closing Date.  Subject to the terms and conditions 
herein contained, the consummation of the transactions referred to above 
shall take place (the "Closing") at the offices of Seller and Shareholder at 
19886 Ashburn Road, Ashburn, Virginia, commencing at 9:00 a.m. local time on 
February 27, 1998, or such other date as the parties may mutually determine 
(the "Closing Date").

     3.   PURCHASE PRICE.

          3.1. Price and Payment.  The aggregate consideration for the Assets 
and the Non-Competi_tion Agreements (set forth in Section 11 below) shall be 
$14,940,000, subject to adjustment as provided in Section 3.2 below, payable 
by wire transfer or delivery of other immediately available funds on the 
Closing Date (the "Purchase Price"). 

          3.2. Purchase Price Adjustment.

               (a)  The Purchase Price shall be increased or decreased on a 
dollar-for-dollar basis by the amount by which the Net Assets of the Seller 
(determined in accordance with this Section 3.2) is more or less than 
$3,300,000.00 on the Closing Date; provided, however, that in no event shall 
the Purchase Price paid for the Assets (including the Non-Competition 
Agreements) and as so adjusted exceed $14,999,999. 

               (b)  The "Net Assets of the Seller" shall mean the sum of all 
Assets less all liabilities of the Seller assumed by Purchaser as of Closing, 
determined in accordance with past practices of Seller as evidenced by its 
financial statements previously provided to Purchaser (which past practices 
are substantially in accordance with generally accepted accounting 
principles, consistently applied ("GAAP"), with such variations therefrom as 
have been previously disclosed to Purchaser).

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               (c)  The Net Assets of the Seller shall be initially 
determined at the time of Closing by an estimate of Seller in good faith, 
based on the January 31, 1998 balance sheet of the Business, which estimate, 
together with Seller's support therefor in reasonable detail shall have been 
provided to Purchaser at least one business day prior to the Closing.  Any 
adjustment as a result thereof shall reduce or increase the Purchase Price 
payable pursuant to Section 3.1 above, to the extent set forth in Section 
3.2, and subject to the final determination of such Net Assets as set forth 
below in this paragraph; provided, however, that any increase in the Purchase 
Price payable at Closing shall be initially limited to 75% of such increase 
(with the full amount of such increase to be deferred until such time as the 
PAF Determination (as defined below) or the Final Computation (as defined 
below) has been made).  Within thirty (30) days following the Closing Date, 
Seller shall provide Purchaser with its final determination of the Net Assets 
of the Seller (the "Seller Determination").  Within thirty (30) days after 
delivery to Purchaser of the Seller Determination, Purchaser shall notify 
Seller if it agrees with such Seller Determination. If Purchaser engages the 
services of a public accounting firm in evaluating the Seller Determination, 
the cost thereof shall be borne by Purchaser.  If Purchaser agrees with the 
Seller Determination, it shall become the "Final Computation" of the Net 
Assets for purposes of this Agreement.  In the event the Purchaser notifies 
Seller (the "Purchaser Notice"), within such thirty-day period that Purchaser 
does not agree with such Seller Determination, Purchaser and Seller shall 
cooperate in good faith to determine a mutually agreeable Net Asset 
determination. In the event Purchaser and Seller agree, the Net Asset 
Determination upon which they agree shall become the Final Computation of the 
Net Assets for purposes of this Agreement. In the event Purchaser and Seller 
fail to agree upon the final Net Asset determination within such thirty-day 
period, Purchaser shall engage a "Big Six" public accounting firm (the "PAF") 
reasonably acceptable to Seller for the purpose of preparing a definitive 
determination of the Net Assets, in accordance with the terms of this 
Agreement (the cost of which shall determination shall be borne equally by 
Seller and Purchaser).  The determination of such PAF (the "PAF 
Determination") shall be submitted in writing to the Seller and Purchaser no 
later than thirty (30) days after the engagement of the PAF, which PAF 
Determination shall be final, conclusive and binding on the parties

               (d)  Any required payment by the Seller or the Purchaser by 
virtue of a Net Assets Adjustment (net of any preliminary adjustment made at 
Closing) shall be made by the Seller or the Purchaser, as the case may be, 
within ten (10) days of the receipt of the PAF Determination or the Final 
Computation, as applicable.

          3.3. Assumed Obligations.  Purchaser hereby agrees to assume the 
obligations of Seller under all contracts and agreements transferred by 
Seller to Purchaser under this Agreement that are listed and described on 
Schedule 3.3 hereto and that arise after the Closing Date (the "Assumed 
Liabilities and Obligations"); provided that Purchaser specifically does not 
assume any liabilities of Seller under such contracts or agreements with 
respect to any breaches of such contracts or agreements occurring on or 
before the Closing Date or any damages to third parties resulting from acts, 
events or omissions occurring on or before the Closing Date.

          3.4. Excluded Liabilities and Obligations.

                                          5

<PAGE>

               (a)  Except as expressly set forth in Section 3.3 above, the 
Purchaser shall not assume and shall not be liable or responsible for any 
debt, obligation or liability of the Business, the Seller, Shareholder or any 
other Affiliate of the Seller, or any claim against any of the foregoing 
parties, of any kind, whether known or unknown, contingent, absolute or 
otherwise.

               (b)  Except for the Assumed Liabilities and Obligations 
expressly provided for in Section 3.3 hereof, the Seller and Shareholder 
shall jointly and severally forever defend, indemnify and hold harmless the 
Purchaser from and against any and all liabilities, obligations, losses, 
claims, damages (including incidentals and consequential damages), costs and 
expenses (including court costs and reasonable attorney's fees) related to or 
arising from the Business on or prior to the Closing Date.

          3.5  Transfer Taxes.  Purchaser and Seller acknowledge and agree 
that the consideration (including, without limitation, the Purchase Price and 
any adjustments thereto) includes and is inclusive of any and all sales, use, 
transfer or other similar tax imposed as a result of the consummation of the 
transaction contemplated by this Agreement, and Seller and Shareholder, 
hereby agree to pay and discharge, and to indemnify Purchaser against, and 
protect, save and hold Purchaser harmless from, any liability, obligation, 
claim, assessment or deficiency (whether or not ultimately successful) for 
any and all sales, use, transfer or other similar taxes (and any and all 
interest, penalties, additions to tax and fines thereon or related thereto) 
resulting or arising from or incurred in connection with the consummation of 
the transactions contemplated by this Agreement

     4.   REPRESENTATIONS AND WARRANTIES OF SELLER.  Seller and Shareholder 
hereby jointly and severally represent and warrant to Purchaser as follows:

          4.1. Organization.  Shareholder is a corporation duly organized, 
validly existing and in good standing under the laws of the state of 
Maryland, and is duly authorized, qualified and licensed under all applicable 
Governmental Requirements to carry on its business in the places and in the 
manner as now conducted except where any such failure would not reasonably be 
expected to have a material adverse effect on the financial condition, 
operating results, assets, or business prospects of the Business. Seller is a 
corporation duly organized, validly existing and in good standing under the 
laws of the state of California, and is duly authorized, qualified and 
licensed under all applicable Governmental Requirements to carry on its 
business in the places and in the manner as now conducted except where any 
such failure would not reasonably be expected to have a material adverse 
effect on the financial condition, operating results, assets, or business 
prospects of the Business.  Seller is qualified to do business in every 
jurisdiction in which the failure to so qualify might reasonably be expected 
to have a material adverse effect on the financial condition, operating 
results, assets, or business prospects of the Business.

          4.2. Ownership.  The Seller owns all of the Assets constituting and 
necessary for the operation of the Business and will transfer the Assets at 
Closing, free and clear of any liens, security interests, rights or 
encumbrances of any kind whatsoever.  The operation of the Business as 
currently conducted is not dependent upon any rights or assets not included 
in the 

                                          6
<PAGE>

Assets being transferred to Purchaser hereunder, or on any employees other 
than the Business Employees.  Except as listed on Schedule 4.2 hereto, there 
are no options, rights or other grants currently outstanding for the 
acquisition or purchase of any of the Assets.  All of the outstanding capital 
stock of the Seller is owned by the Shareholder and Shareholder has the full 
corporate power and authority to enter into this Agreement and perform its 
obligations hereunder, and no further consents are required with respect 
thereto.

          4.3. Financial Statements.  Seller has delivered to Purchaser 
copies of the following financial statements for the Business, all of which 
financial statements are included in Schedule 4.3(A) hereto.

               (a)  Unaudited Balance Sheet of the Business (the "Reference 
Balance Sheet") as of December 31, 1997 (the "Balance Sheet Date") and 
Internal Operations Summary of the Business for the one-month period ended on 
the Balance Sheet Date.

               (b)  Internal Operations Summary of the Business for Seller's 
fiscal years ended December 31, 1995 and 1996; and

               (c)  Internal Operations Summary of the Business as of and for 
all months of 1997.

All financial statements supplied to Purchaser by Seller, whether or not 
included in Schedule 4.3(A) hereto, are true and accurate in all respects and 
have been prepared substantially in accordance with GAAP, except to the 
extent previously disclosed to Purchaser, and are consistent with the 
Seller's past practices, and present fairly the financial condition of the 
Business as of the dates and for the periods indicated thereon.  The 
Reference Balance Sheet reflects, as of the Balance Sheet Date, all 
liabilities, debts and obligations of any nature of Seller related to the 
Business and the Assets, whether accrued, absolute, contingent or otherwise, 
and whether due, or to become due, including, but not limited to, 
liabilities, debts or obligations on account of taxes or other governmental 
charges, or penalties, interest or fines thereon or in respect thereof, to 
the extent such items are required to be reflected on such balance sheet, 
which has been prepared substantially in accordance with GAAP (except to the 
extent disclosed to Purchaser prior to the date hereof) and consistent with 
Seller's past practices.  Any liabilities, debts and obligations of any 
nature of Seller related to the Business that would be required under 
Seller's past practices to be reflected on notes to Seller's financial 
statements but not on Seller's balance sheet are accurately reflected in 
Schedule 4.3(A).

          4.4. Events Since November 30, 1997.  Except as set forth on 
Schedule 4.4 hereto, since November 30, 1997, there has not been any material 
change to:

               (a)  any change in the condition (financial or otherwise) or 
in the properties, assets, liabilities, business or prospects of the Assets 
or the Business, except normal and usual changes in the ordinary course of 
business, none of which has been adverse and all of which in the aggregate 
have not been adverse;

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               (b)  any labor trouble, strike or any other occurrence, event 
or condition affecting the employees of the Business that adversely affects 
the condition (financial or otherwise) of the Assets or the Business.

               (c)  any breach or default by Seller or Shareholder or, to the 
Best Knowledge of Seller, by any other party, under any agreement or 
obligation included in the Assets or by which any of the Assets are bound;

               (d)  any damage, destruction or loss (whether or not covered 
by insurance) adversely affecting the Assets or the Business;

               (e)  any change in the types, nature, composition or quality 
of the services of the Business, any adverse change in the contributions of 
any of the service lines of the Business to the revenues or net income of 
such Business, or any adverse change in the sales, revenue or net income of 
the Business;

               (f)  any transaction related to or affecting the Assets or the 
Business other than transactions in the ordinary course of business of 
Seller; 

               (g)  any increase in the rate of compensation payable or to 
become payable to, any bonus, incentive compensation, service award or other 
like benefit granted, made or accrued, contingently or otherwise, for or to 
the credit of, any director, officer or other employee, except for any 
increases in the normal course of business; 

               (h)  any addition to or modification of the employee benefit 
plans, arrangements or practices affecting the officers, directors, or 
employees of Seller other than (A) contributions made for 1997 in accordance 
with the normal practices of the Seller, or (B) the extension of coverage to 
such persons who became eligible after the most recent fiscal year end;

               (i)  modification, cancellation or termination of any material 
contract or entry into any contract which is not in the ordinary course of 
the Business; or

               (j)  any other occurrence, event or condition that has 
adversely affected (or can reasonably be expected to adversely affect) the 
Assets or the Business.

          4.5. Competing Interests.  Except as set forth on Schedule 4.5 
hereto, neither Seller or Shareholder to the Best Knowledge of Seller:

               (a)  owns, directly or indirectly, any equity interests in, or 
is a director, officer or employee of, or consultant to, any entity which is 
a competitor, supplier or customer of the Business, (except for ownership, if 
any, of less than one percent (1%) by value of the outstanding capital stock 
of any corporation the capital stock of which is traded on a nationally 
recognized securities exchange); or

               (b)  owns, directly or indirectly, in whole or in part, any 
property, asset or right which is associated with the Assets or the Business, 
or which Seller is presently 

                                          8
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operating or using in connection with or the use of which is necessary for or 
material to the operation of the Business.

          4.6. Notes and Accounts Receivable.  All notes and accounts 
receivable of the Seller which are part of the Assets are reflected properly 
on Seller's books and records, are valid receivables subject to no setoffs or 
counterclaims, are presently current and collectible, and will be collected 
in accordance with their terms at their recorded amounts, subject only to a 
reserve for bad debts set forth on the face of the Reference Balance Sheet as 
adjusted for the passage of time through the date of Closing in accordance 
with the past customs and practices of the Business, as previously disclosed 
to Purchaser.

          4.7. Employee Matters.  Schedule 4.7(A) hereto, sets forth a true 
and complete list of the names of each corporate or administrative 
(non-temporary) employee of Seller utilized in connection with the operation 
of the Business (the "Business Employees"), together with the following 
information as to each such Business Employee: (i) current annual 
compensation; (ii) date of hire; (iii) accrued vacation and sick leave; (iv) 
balance under 401(k) plan, if any, and statement as to vesting status under 
such plan; and (v) a detailed description of any outstanding employee loans 
made under the 401(k) plan, including borrowers, loan amounts, maturity 
dates, interest rates, and payment histories.  Except as specifically 
described on Schedule 4.7(B) hereto, neither Seller nor Shareholder has any 
employee benefit plans (including, but not limited to, pension plans and 
health or welfare plans), arrangements or understandings, whether formal or 
informal relating to any employees of the Business.  Purchaser will have no 
liability with respect to any such plans as a result of the transactions 
contemplated by this Agreement.  Seller does not now and has never 
contributed to a "multi-employer plan" as defined in section 4001(a)(3) of 
the Employee Retirement Income Security Act of 1974, as amended ("ERISA").  
Seller is not a party to any collective bargaining or other union agreements. 
 Seller has not, within the last five (5) years, had or been threatened with 
any union activities, work stoppages or other labor trouble with respect to 
its employees engaged in the Business which had or might have had a material 
adverse effect on the Business.  Other than wage increases in the ordinary 
course of business, since the Balance Sheet Date, Seller has not made any 
commitment or agreement to increase the wages or modify the conditions or 
terms of employment of any of the (non-temporary) employees of Seller used in 
connection with the Business. Each of the Business Employees employed 
full-time in the Business does not perform any substantial services for 
Seller or Shareholder outside the Business.  

          4.8. Contracts and Agreements.  Schedule 4.8 hereto, sets forth a 
true and complete list of and briefly describes (including termination date) 
all of the following contracts, agreements, leases, licenses, plans, 
arrangements or commitments, written or oral, that relate to the Assets 
(including all amendments, supplements and modifications thereto):

               (a)  all contracts, agreements, or commitments in respect of 
the sale of services;

                                          9
<PAGE>

               (b)  all offers, tenders, bids, proposals or the like 
outstanding and capable of being converted into an obligation of Seller by 
the passage of time or by an acceptance or other act of some other person or 
entity or both;

               (c)  all sales or agency agreements or franchises or legally 
enforceable commitments or obligations with respect thereto;

               (d)  all collective bargaining agreements, union agreements, 
employment agreements, consulting agreements or agreements providing for the 
services of an independent contractor;

               (e)  all profit-sharing, pension, stock option, severance pay, 
retirement, bonus, deferred compensation, group life and health insurance or 
other employee benefit plans. 

               (f)  all loan or credit agreements, indentures, notes, 
guarantees (other than endorsements made for collection), mortgages, pledges, 
conditional sales or other title retention agreements, and all equipment 
financing obligations, lease and lease-purchase agreements relating to or 
affecting the Assets or the Business;

               (g)  all leases related to the Assets or the Business, and all 
other contracts, agreements or legally enforceable commitments relating to or 
affecting the Assets or the Business;

               (h)  all performance bonds, surety bonds and the like, all 
contracts and bids covered by such bonds, and all letters of credit and 
guaranties;

               (i)  all consent decrees and other judgments, decrees or 
orders, settlement agreements and agreements relating to disclosure or 
competitive activities, requiring, limiting or prohibiting any future action;

               (j)  all accounts, notes and other receivables, and all 
security therefor, and all documents and agreements related thereto;

               (k)  all contracts or agreements of any nature with any 5% or 
greater stockholder of Seller, or any Associate (as defined in Section 4.5 
above) of such stockholders; 

               (l)  any agreement under which Seller has advanced or loaned 
any amount which remains outstanding, to any of the Business Employees 
outside the ordinary course of business and which will not be paid off at or 
prior to the Closing;

               (m)  each agreement requiring capital expenditures by Seller 
in connection with the Business or the Assets after the date hereof in an 
amount in excess of $10,000 individually or $50,000 in the aggregate;

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<PAGE>

               (n)  each written warranty, guaranty or other similar 
undertaking with respect to contractual performance extended by Seller other 
than in the ordinary course of business;

               (o)  any agreement creating or governing a partnership, 
limited liability company, joint venture or any teaming agreement or other 
contract (however named) which teaming agreement or other contract involves a 
sharing of profits, losses, costs, or liabilities by Seller with any other 
Person and involving a liability of Seller in excess of $50,000 per annum; and

               (p)  all contracts, commitments and agreements entered into 
outside the ordinary course of the operation of the Business.

Except as set forth in Schedule 4.8, all of such contracts, agreements, 
leases, licenses, plans, arrangements, and commitments and all other such 
items included in the Assets but not specifically described above 
(collectively, the "Contracts"), are held directly in the name of Seller or 
the Business, are valid, binding and in full force and effect in accordance 
with their terms and conditions and there is no existing default thereunder 
or breach thereof by Seller, or, to the Best Knowledge of Seller and 
Shareholder, by any other party to the Contracts, or any conditions which, 
with the passage of time or the giving of notice or both, will constitute 
such a default by Seller, or, to the Best Knowledge of Seller, by any other 
party to the Contracts, and the Contracts will not be breached by or give any 
other party a right of termination as a result of the transactions 
contemplated by this Agreement. Seller is not aware of any reason why any of 
the Contracts (i) will result in a loss to Purchaser on completion by 
performance or (ii) cannot readily be fulfilled or performed by Purchaser 
with the Assets on time without undue or unusual expenditure of money or 
effort. Copies of all of the documents (or in the case of oral commitments, 
descriptions of the material terms thereof) relevant to the Contracts listed 
in Schedule 4.8 hereto have been delivered by Seller to Purchaser, and such 
copies and descriptions are true, complete and accurate and include all 
amendments; supplements or modifications thereto. To the Best Knowledge of 
Seller and Shareholder, no purchaser of services under any Contract will stop 
or decrease its rate of buying services (on an annualized basis) from Seller 
prior to or after the Closing Date. No one has advised Seller or Shareholder 
that any Contract assigned to Purchaser by Seller pursuant to the 
transactions contemplated by this Agreement will be terminated by any 
customer prior to, on or after the Closing or that any existing relationship 
with any customer will expire upon termination of any existing Contract. 
Except as set forth on Schedule 4.8(A) hereto, all of the Contracts may be 
assigned to Purchaser without the approval or consent of any Person.  
Schedule 4.8(A) is true and correct in all material respects to the Best 
Knowledge of Seller and Shareholder. Seller hereby represents and warrants 
that all the consents required for the assignment or novation of the 
Contracts specified in Section 6.2 below, including without limitation all 
consents necessary for the assignment or novation of the Contracts listed on 
Schedule 4.8 hereto, will be obtained no later than the date on which Seller 
delivers the Seller Determination in accordance with Section 3.2(c) hereof.

          4.9. Effect of Agreement.  Except as set forth on Schedule 4.9, the 
execution and delivery of this Agreement and the consummation of the 
transactions contemplated hereby

                                          11
<PAGE>

will not (i) result in any breach of any of the terms or conditions of, or 
constitute a default under, the Certificate of Incorporation or Bylaws of 
Seller or Shareholder, or any commitment, mortgage, note, bond, debenture, 
deed of trust, contract, agreement, license or other instrument or obligation 
to which either Seller or Shareholder is now a party or by which Seller or 
Shareholder or any of their properties or assets may be bound or affected; 
(ii) result in any violation of any Governmental Requirement; (iii) cause 
Purchaser to lose the benefit of any right or privilege included in the 
Assets; (iv) relieve any Person of any obligation (whether contractual or 
otherwise) or enable any Person to terminate any such obligation or any right 
or benefit enjoyed by Seller or to exercise any right under any agreement in 
respect of the Assets or the Business; or (v) require notice to or the 
consent, authorization, approval or order of any Person (except as may be 
contemplated by the penultimate sentence of Section 4.8 hereof). To the Best 
Knowledge of Seller and Shareholder, the business relationships of clients, 
customers and suppliers of the Business will not be adversely affected by the 
execution and delivery of this Agreement or the consummation of the 
transactions contemplated hereby.

          4.10. Properties, Assets and Leasehold Estates.  Except as set 
forth on Schedule 4.10, Seller has good and marketable title to all the 
Assets, free and clear of all mortgages, liens, pledges, conditional sales 
agreements, charges, easements, covenants, assessments, options, restrictions 
and encumbrances of any nature whatsoever.  All leases to which real or 
personal property is leased in connection with the Business are in good 
standing, valid and enforceable with respect to their terms and are held in 
the name of Seller. Schedule 4.10 sets forth a listing of the fixed assets 
included in the Assets, including a depreciation schedule with respect 
thereto, and a listing of all real and personal property leases held by 
Seller and used in the Business.

          4.11. Intangible Property. 

                (a)  Except as set forth on Schedule 4.11 hereto, the 
operation of the Business as now conducted by Seller does not require the use 
of or consist of any rights under any patents, inventions, trademarks, trade 
names, brand names, copyrights or other material intellectual property 
(including but not limited to software licenses). Seller owns and has the 
full and exclusive right to use in connection with the Business all of the 
items listed on Schedule 4.11 hereto, which items are in full force and 
effect.  Seller has not transferred, encumbered or licensed to any Person any 
rights to own or use any portion of the items listed on Schedule 4.11 hereto 
or any other intangible property included in the Assets. None of (i) the 
items listed on Schedule 4.11, (ii) any other intangible property included in 
the Assets, or (iii) the operation of the Business as presently conducted, 
violates or infringes upon any patents, inventions, trademarks, tradenames, 
brand names,  copyrights or other material intellectual property owned by 
others.  To the Best Knowledge of Seller, none of the items listed on 
Schedule 4.11 hereto or any other intangible property included in the Assets 
is being infringed upon by any Person.

               (b)  Seller does not own any intellectual property used in 
relation to the Business. 

          4.12. Suits, Actions and Claims.  Except as set forth in Schedule 
4.12 hereto, (i) there are no suits, actions, claims, inquiries or 
investigations by any Person, or any legal, 

                                          12
<PAGE>

administrative or arbitration proceedings in which the Business is engaged or 
which are pending or, to the Best Knowledge of Seller and Shareholder, 
threatened against or affecting the Business or Assets or relating to the 
Business Employees, or which question the validity or legality of the 
transactions contemplated hereby, (ii) no basis or grounds for any such suit, 
action, claim, inquiry, investigation or proceeding exists, and (iii) there 
is no outstanding order, writ, injunction or decree of any Governmental 
Authority against or affecting Seller with respect to the Business, Business 
Employees or the Assets. Without limiting the foregoing, neither Seller nor 
Shareholder has any knowledge of any state of facts or the occurrence of any 
event forming the basis of any present or potential claim against Seller or 
Shareholder with respect to the Business, the Business Employees or the 
Assets.

          4.13. Licenses and Permits; Compliance with Governmental 
Regulations.  Schedule 4.13 hereto, sets forth a true and complete list of 
all licenses and permits necessary for the conduct of the Business.  Except 
as set forth on Schedule 4.13, all such licenses and permits are fully 
transferable by Seller.  Seller has all such licenses and permits validly 
issued to it and in its name or in the name of the Business, and all such 
licenses and permits are in full force and effect.  True and correct copies 
of all such licenses and permits are included in Schedule 4.13 hereto.  No 
violations are or have been recorded in respect of such licenses or permits 
and no proceeding is pending or, to the Best Knowledge of Seller or 
Shareholder threatened seeking the revocation or limitation of any of such 
licenses or permits.  All such licenses and permits that are subject to 
transfer are included in the Assets.  Seller has complied with all 
Governmental Requirements applicable to the Business (including without 
limitation all Governmental Requirements relating to employees of Seller), 
and all Governmental Requirements with respect to the distribution and sale 
of products and services by the Business in all material respects;

          4.14. Authorization. Each of Seller and Shareholder has full legal 
right, power and authority to enter into and deliver this Agreement and to 
consummate the transactions set forth herein and to perform all the terms and 
conditions hereto to be performed by it.  The execution and delivery of this 
Agreement by each of Seller and Shareholder and the performance by them of 
the transactions contemplated herein has been duly and validly authorized by 
all requisite corporate action of Seller and Shareholder, and this Agreement 
has been duly and validly executed and delivered by Seller and Shareholder 
and is the legal, valid and binding obligation of each of Seller and 
Shareholder, enforceable against them in accordance with its terms, except as 
limited by applicable bankruptcy, moratorium, insolvency or other similar 
laws affecting generally the rights of creditors or by principles of equity.

          4.15. No Untrue Statements.  The statements, representations and 
warranties of Seller set forth in this Agreement and the Schedules hereto and 
in all other documents and information furnished to Purchaser and its 
representatives in connection herewith do not include any untrue statement of 
a material fact or omit to state any material fact necessary to make the 
statements, representations and warranties made not misleading.  

          4.16. Records. The books, records and minutes kept by Seller with 
respect to the Assets and the Business, including, but not limited to, all 
customer files, service agreements quotations, correspondence and historic 
revenue data of the Business since January 1, 1995, have 

                                          13
<PAGE>

been kept properly and contain records of all matters required to be included 
therein by any Governmental Requirement, and such books, records and minutes 
are true, accurate and complete and (except for corporate minute books and 
stock records) are included in the Assets.  Seller agrees to store for a 
period of at least one (1) year from the Closing Date all of Seller's tax and 
accounting records (other than those solely with respect to the Business 
which are included in the Assets) for the one (1) year period prior to the 
Closing Date. Such records shall be made available for inspection and copying 
by Purchaser upon reasonable advance notice and during reasonable business 
hours. At the end of such one (1) year period, Purchaser shall notify Seller 
as to whether Purchaser shall require Seller to continue to retain such tax 
and accounting records in the manner described above.  Purchaser agrees to 
maintain all books and records relating to the Assets during the period prior 
to Closing, including financial records and documents and contracts included 
in the schedules hereto for at least one (1) year after the Closing Date, and 
Purchaser agrees, at least annually before each  anniversary of the Closing 
Date to certify to Seller and Shareholder that Purchaser is retaining the 
books and records specified in this Agreement and this section 4.16.  
Purchaser further agrees that if Purchaser intends, after the first 
anniversary of the Closing Date, to destroy any of such books and records 
during the six (6) year period after the Closing Date, Purchaser will first 
notify Seller and provide Seller with an opportunity to take possession of 
such records within a period of not less than thirty (30) days following such 
notice.

          4.17. Work-In-Process.  Except as set forth on Schedule 4.17 
hereto, Seller has not received any payments with respect to any 
work-in-process with respect to the Business.

          4.18. Brokers and Finders.  No broker or finder has acted for 
Seller or Shareholder in connection with this Agreement or the transactions 
contemplated by this Agreement and no broker or finder is entitled to any 
brokerage or finder's fee or to any commission in respect thereof based in 
any way on agreements, arrangements or understandings made by or on behalf of 
Seller or Shareholder.

          4.19. Adverse Facts. Seller is not aware (after having made all 
reasonable inquiries) of any fact or matter not disclosed in this Agreement 
or in the Schedules hereto which might be reasonably expected to adversely 
effect the Assets or the Business after Closing.

          4.20. Deposits.  Neither Seller nor Shareholder now hold, nor does 
either Seller or Shareholder expect to receive between the date hereof and 
the Closing Date, any deposits or prepayments by third parties with respect 
to any of the Assets or the Business which are not reflected as liabilities 
on the Reference Balance Sheet

          4.21. Workers' Compensation Data.  All data set forth in the 
workers' compensation report of Seller attached hereto as Schedule 4.21 is 
true, correct and complete as of the date thereof.

          4.22. Customer List.  Schedule 4.22 hereto sets forth a true, 
correct and complete list of all customers of the Business to which Seller 
has sold or provided services in excess of $250,000 per annum during the two 
(2) years immediately preceding the date hereof. 

                                          14
<PAGE>

This list provides an accurate statement of the gross revenues received from 
each such customer by the Business during the twenty-four (24) month period 
ended December 31, 1997.  To the Best Knowledge of Seller and Shareholder, no 
current customer of the Business listed on Schedule 4.22 hereto will stop or 
decrease its rate of buying services (on an annualized basis) from Seller 
prior to the Closing Date, or from Purchaser after the Closing Date

          4.23. No Royalties.  No royalty, license fee or similar item or 
amount is being paid or is owing by Seller, nor is any such item accruing, 
with respect to the operation, ownership or use of the Business or the Assets.

          4.24. Business.  All of the revenues generated by the Seller from 
the Business have been earned and received by Seller, and not through or in 
Shareholder or in any Subsidiary (as hereinafter defined).

          4.25. Insurance.  Schedule 4.25 sets forth the following 
information with respect to each insurance policy (including policies 
providing property, casualty, liability, and workers' compensation coverage 
and bond and surety arrangements) held by Seller with respect to the 
Business: 

               (a)  the name, address, and telephone number of the agent;

               (b)  the name of the insurer, the name of the policyholder, 
and the name of each covered insured;

               (c)  the policy number and the period of coverage; and

               (d)  the amount (including a description of how deductibles 
and ceilings are calculated and operate) of coverage.

     With respect to each such insurance policy, (A) the policy is legal, 
valid, binding, enforceable, and in full force and effect in all material 
respects; (B) no event has occurred which, with notice or the lapse of time, 
would permit termination, modification, or acceleration, under the policy.  
Schedule 4.25 describes any material self-insurance arrangements affecting 
Seller.  

          4.26. Products.  The Business does not include the manufacture or 
sale of any products.

          4.27. Environmental Matters.  Seller owns no real estate, and each 
portion of the real property leased by Seller in connection with the Business 
is part of a larger premises also subject to lease agreements with other 
tenants. To the Best Knowledge of Seller and Shareholder (but without 
independent investigation), (i) Seller has complied with and is not in 
violation of any environmental laws, (ii) Seller is not required to hold or 
obtain any environmental permits, certificates, consents or other settlements 
agreements, licenses, approvals, registrations or authorizations under any 
environmental laws, (iii) no notice, citation, summons or order has been 
issued, no complaint has been filed, no penalty has been assessed and no 
investigation or review is pending or threatened by any governmental or other 
entity relating to such leased real property 

                                          15
<PAGE>

or Seller's operations with respect to any alleged violation by Seller of any 
environmental law or with respect to any use, possession, generation, 
treatment, storage, recycling, transportation or disposal of any Hazardous 
Substances by or on behalf of Seller, (iv) there are no facts or 
circumstances related to environmental matters concerning such leased real 
property that could reasonably be expected to lead to any future 
environmental claims against Seller under current environmental laws, and (v) 
there have been no environmental inspections, investigations, studies, 
audits, tests, reviews or other analyses conducted in relation to any such 
leased real property, Seller or the Business which have been provided or 
reported to Seller or Shareholder

          4.28.  3.   Government Contracts.  With respect to each Contract 
included in the Assets which is directly or indirectly for any department or 
agency of the United States government or any state government (a "Government 
Contract"):

               (a)  During the past five (5) years, no payment has been made 
by Seller or by any Person authorized to act on Seller's behalf, to any 
Person in connection with any such Government Contracts, in violation of 
applicable procurement laws or regulations or in violation of (or requiring 
disclosure pursuant to) the Foreign Corrupt Practices Act.

               (b)  Schedule 4.28 sets forth all outstanding or pending 
change orders which could reasonably be deemed to involve an amount in excess 
of $10,000 and all claims, requests for equitable adjustments, outstanding or 
pending subcontractor, supplier or vendor claims, and all teaming agreements, 
joint venture arrangements and agency agreements, with respect to such 
Government Contracts.

               (c)  Seller's accounts receivable, unbilled costs and accrued 
profits (less customer progress payments), notes receivable, contracts in 
progress, accounts payable and notes payable (collectively, the "Receivables 
and Unbilled Costs") as of the Closing shall be recorded on its books and 
records in the ordinary course of business in accordance with GAAP applied on 
a consistent basis with prior years.

               (d)  With respect to each Government Contract, except as set 
forth in Schedule 4.28, (A) Seller has complied with all material terms and 
conditions of such Government Contract, including all clauses, provisions and 
requirements incorporated expressly, by reference or by operation of law 
therein, (B) Seller has complied with all requirements of applicable laws 
pertaining to such Government Contract, (C) all representations and 
certifications executed, acknowledged or set forth in such Government 
Contract were complete and correct in all material respects as of their 
effective date, and Seller has complied in all material respects with all 
such representations and certifications, and (D) neither the United States 
Government, any state government nor any prime contractor, subcontractor or 
other Person has notified Seller in writing, that Seller has breached or 
violated any applicable law, or any material certification, representation, 
clause, provision or requirement pertaining to such Government Contract.  

               (e)  Neither Seller nor Shareholder is currently, or has been 
in the past five (5) years, debarred or suspended from doing business with 
any Federal or state government 

                                          16
<PAGE>

agency, nor has any such suspension or debarment action been commenced.  No 
show cause notices, notices of termination for default or cure notices have 
been issued against Seller or Shareholder in the past five (5) years, except, 
as to any such cure notices, those with respect to which cure has been made 
in the ordinary course of business.

               (f)  Neither Seller nor Shareholder is currently, or has been 
in the past five (5) years, under administrative, civil or criminal 
indictment or, to Seller's or Shareholder's Best Knowledge, investigation, 
with respect to any alleged irregularity, misstatement or omission arising 
under or in any way relating to any of such Government Contracts.

               (g)  Schedule 4.7(A) lists all security clearances held by 
Seller.  Seller has previously provided to Purchaser an accurate and complete 
list of the security clearances held by the Business Employees, which 
constitute all security clearances necessary for the operation of the 
Business. Seller has never been denied a security clearance necessary to 
perform any such Government Contract unless such clearance has later been 
granted.

          4.29. Taxes.  Seller has filed all tax returns (including without 
limitation such returns regarding sales taxes and contributions relating to 
any state and federal unemployment insurance contributions), and has withheld 
and paid (or properly reserved and accounted on its financial statements for) 
all taxes, relating to the Assets, the Business and the Business Employees 
and accruing prior to the Closing Date.

     5.   REPRESENTATIONS AND WARRANTIES OF PURCHASER.  Purchaser represents 
and warrants to Seller as follows:

          5.1. Incorporation. Purchaser is a corporation duly organized, 
validly existing and in good standing under the laws of the State of Maryland.

          5.2. Authorization.  Purchaser has full legal right and corporate 
power to enter into and deliver this Agreement and to consummate the 
transactions set forth herein and to perform all the terms and conditions 
hereof to be performed by it.  This Agreement has been duly executed and 
delivered by Purchaser and is a legal, valid and binding obligation of 
Purchaser enforceable in accordance with its terms, except as limited by 
applicable bankruptcy, moratorium, insolvency, or other laws affecting 
generally the rights of the creditors or by principals of equity.  The 
execution and delivery of this Agreement by Purchaser and the performance by 
Purchaser of the transactions contemplated herein have been duly and validly 
authorized by all requisite corporate action of Purchaser.

          5.3. Brokers and Finders.  No broker or finder has acted for 
Purchaser in connection with this Agreement or the transactions contemplated 
by this Agreement and, no broker or finder is entitled to any brokerage or 
finder's fee or to any commission in respect thereof based in any way on 
agreements, arrangements or understandings made by or on behalf of Purchaser.

                                          17
<PAGE>

     6.   PRE-CLOSING COVENANTS.  The parties agree as follows with respect 
to the period between the execution of this Agreement and the Closing.

          6.1. General.  Each of the parties will use all reasonable efforts 
to take all action and to do all things necessary, proper, or advisable to 
consummate and make effective the transactions contemplated by this Agreement 
(including satisfying the closing conditions set forth in Section 7 below).

          6.2. Notices and Consents.  Seller will give any notices to third 
parties, and the Seller and Shareholder will each use its best efforts to 
obtain any third party consents that the Purchaser may request in connection 
with the transfer of the Contracts to Purchaser and any other matters 
pertaining to the Seller or Shareholder disclosed or required to be disclosed 
by this Agreement. Each of the parties will make all reasonable efforts to 
take any additional action that may be necessary, proper or advisable in 
connection with any other notices to, filings with, and authorizations, 
consents, and approvals of governments, governmental agencies, and third 
parties that it may be required to give, make or obtain.

          6.3. Operation of Business.  Seller will not engage in any 
practice, take any action, embark on any course of inaction, or enter into 
any transaction outside the ordinary course of business with regard to the 
Business or the Assets. Without limiting the generality of the foregoing, 
Seller will not engage in any practice, take any action, embark on any course 
of inaction, or enter into any transaction of the sort described in Section 
4.4 hereof. Neither shall Seller nor Shareholder agree to any extension of 
the expiration dates under the leases described in Section 7.1(n) hereof 
beyond July 1, 1998.

          6.4. Preservation of Business.  Seller will keep the business and 
properties of the Business substantially intact, including its present 
operations, physical facilities, working conditions, and relationships with 
lessors, licensors, suppliers, customers, and employees.

          6.5. Full Access.  Seller will permit representatives of the 
Purchaser to have full access at all reasonable times, and in a manner so as 
not to interfere with the normal business operations of the Seller, to all 
premises, properties, books, records, contracts, tax records, and documents 
of or pertaining to the Business.

          6.6. Notice of Developments.  The Seller will give prompt written 
notice to the Purchaser of any material development affecting the assets, 
liabilities, business, financial condition, operations, results of 
operations, or future prospects of the Business.  Each party will give prompt 
written notice to the other of any material development affecting the ability 
of the parties to consummate the transactions contemplated by this Agreement. 

          6.7. Exclusivity.  Prior to Closing, the Seller and Shareholder 
will not, with respect to the Business or the Assets, (i) solicit, initiate, 
or encourage the submission of any proposal or offer from any person relating 
to any (A) liquidation, dissolution, or recapitalization, (B) merger or 
consolidation, (C) acquisition or purchase of securities or assets, or (D) 
similar transaction or business combination involving Seller, or (ii) 
participate in any discussions or 

                                          18
<PAGE>

negotiations regarding, furnish any information with respect to, assist or 
participate in, or facilitate in any other manner any effort or attempt by 
any person to do or seek any of the foregoing.  The Seller will notify the 
Purchaser immediately if any person makes any proposal, offer, inquiry, or 
contact with respect to any of the foregoing.

          6.8. Schedules.  The Purchaser acknowledges that the facts 
underlying the Schedules to the Agreement may change between the time of the 
execution and delivery of this Agreement and the Closing. As such, the 
parties hereto agree as follows:

               (a)  The Seller shall have the right to amend, restate or 
supplement the Schedules to the Agreement at any time at least two (2) 
business days prior to the Closing Date, and shall, as of the Closing, 
restate Schedule 4.7(A) and Schedule 4.10, and any others of the Schedules 
which have become inaccurate in any material respect as of such date;

               (b)  At least two (2) business days prior to the Closing, the 
Seller shall deliver to the Purchaser two (2) complete copies of the proposed 
final Schedules to the Agreement, marked to show changes from those attached 
to the Agreement upon its execution; and

               (c)  Purchaser shall notify Seller in writing at the Closing 
that either (i) Purchaser accepts such Schedules, in which case they shall 
become a part of this Agreement as if such Schedules were in existence on the 
date this Agreement was originally executed and all such disclosures made in 
such Schedules shall be deemed to be disclosed as if such Schedules have been 
made as of the date of this Agreement or (ii) Purchaser, in its sole 
discretion, exercised in good faith, believes that the information disclosed 
in such amended Schedules would result in a material adverse change or 
material adverse affect on the Business, Assets or future prospects of the 
Business and therefore elects to terminate this Agreement pursuant to the 
provisions of Section 8 of this Agreement without any liability to Purchaser.

          6.9. NASA Ames FIPS Contract.  Seller and Shareholder shall use all 
reasonable efforts to cause the proposal submitted by Seller to, and 
currently under consideration by, the NASA Ames Research Center for the 
Federal Information Processing Services project (collectively, "the NASA Ames 
FIPS Contract") to be awarded to Purchaser as the successor to Seller in 
connection with the outstanding proposal relating to such Contract (a copy of 
which, not including Seller's indirect pricing information, has previously 
been provided to Purchaser). The parties acknowledge their intent that, in 
the event the NASA Ames FIPS Contract is awarded to Seller, the economic 
benefits and obligations of such contract are to flow to Purchaser through 
appropriate contractual arrangements to be agreed upon by the parties in good 
faith at the time such contract is awarded to Seller. Seller further 
acknowledges and agrees that it shall cooperate fully in any administrative 
proceedings resulting from the award of such contract which Purchaser may 
determine are appropriate, and Purchaser agrees that Purchaser shall bear any 
out of pocket costs incurred by Purchaser or Seller related thereto.  The 
terms of this Section 6.9 shall survive the Closing hereunder for a period of 
six (6) years.

     7.   CONDITIONS TO OBLIGATION TO CLOSE.

                                          19
<PAGE>

          7.1. Conditions to Obligation of the Purchaser.  The obligations of 
the Purchaser to consummate the transactions to be performed by it in 
connection with the Closing is subject to satisfaction of the following 
conditions:

               (a)  the representations and warranties set forth in Section 4 
hereof shall be true and correct in all material respects at and as of the 
Closing Date;

               (b)  Seller and Shareholder shall have performed and complied 
with all of their covenants hereunder in all material respects through the 
Closing;

               (c)  Seller and Shareholder shall have procured all of the 
necessary third party consents required for the assignment or novation of the 
Contracts with the Jet Propulsion Laboratory;

               (d)  no action, suit, or proceeding shall be pending or 
threatened before any court or quasi-judicial or administrative agency of any 
federal, state, local, or foreign jurisdiction wherein an unfavorable 
judgment, order, decree, stipulation, injunction, or charge would (i) prevent 
consummation of any of the transactions contemplated by this Agreement, (ii) 
cause any of the transactions contemplated by this Agreement to be rescinded 
following consummation, or (iii) affect adversely, the right of the Purchaser 
to own, operate, or control the Assets (and no such judgment, order decree, 
stipulation, injunction, or charge shall be in effect);

               (e)  Seller shall have delivered to the Purchaser a 
certificate to the effect that each of the conditions specified above in 
Section 7.1(a)-(d) is satisfied in all respects;

               (f)  Purchaser shall have received all other necessary 
authorizations, consents, and approvals of governments and governmental 
agencies for the transfer of the Assets to Purchaser;

               (g)  Purchaser shall have received fully executed employment 
agreements from Mr. Kurt Brewer and Mr. Walter Natzic, in form and substance 
satisfactory to Purchaser, under which such individuals agree to be employed 
by Purchaser after the Closing;

               (h)  all actions and approvals to be taken by the Seller or 
Shareholder in connection with consummation of the transactions contemplated 
hereby (including approval of the Seller's or Shareholder's stockholders if 
required by law) and all certificates, opinions, instruments, and other 
documents required to effect the transactions contemplated hereby will be 
delivered to the Purchaser and will be in form satisfactory to Purchaser and 
its counsel;

               (i)  the Purchaser shall have received from John B. Connor, 
P.L.C., counsel for the Seller and Shareholder, an opinion addressed to 
Purchaser dated the date of the Closing, and in form and substance attached 
hereto as Exhibit D;

               (j)  the Purchaser shall have obtained the approval of its 
Board of Directors for the transactions contemplated by this Agreement;

                                          20
<PAGE>

               (k)  the Purchaser shall have received from the Seller its 
unaudited financial statements (income statements for fiscal years 1995 and 
1996) and for the twelve-month period ended December 31, 1997, and for 
January 31, 1998, of the Business;

               (l)  Seller shall not have experienced any material adverse 
change in the Business or the Assets, and all of the Contracts listed on 
Schedule 7.1(c) shall be in full force and effect;

               (m)  Seller shall not have lost any material customer or 
customers representing a significant amount of the Business nor shall the 
same have significantly curtailed the buying of services from Seller. For 
purposes of this Section 7.1(m), a "material customer" shall mean a customer 
to whom Seller invoiced at least $1,000,000.00 of services in calendar year 
1997;

               (n)  Shareholder and/or Seller shall have caused the liens on 
the Assets held by NationsBank to be released;

               (o)  in the event Seller has been awarded the NASA Ames FIPS 
Contract, Seller and/or Shareholder and Purchaser shall have entered into, as 
of the Closing Date, a software license agreement substantially in a form 
acceptable to Purchaser and Seller, by which Purchaser has the right to use 
Seller's and/or Shareholder's software products for the performance of the 
NASA Ames FIPS Contract, which software license agreement shall contain a fee 
payable to Seller or Shareholder equal to two percent (2%) of the annual 
revenue realized by Purchaser under the NASA Ames FIPS Contract, but in no 
event more than Four Million Dollars ($4,000,000) over the entire term of the 
contract; and

               (p)  Purchaser may waive any condition specified in this 
Section 7.1 if it executes a writing so stating at or prior to the Closing.

          7.2. Conditions to Obligations of the Seller.  The obligations of 
the Seller and Shareholder to consummate the transactions to be performed by 
it in connection with the Closing is subject to satisfaction of the following 
conditions:

               (a)  the representations and warranties set forth in Section 5 
above shall be true and correct in all material respects at and as of the 
Closing Date;

               (b)  the Purchaser shall have performed and complied with all 
of its covenants hereunder in all material respects through the Closing;

               (c)  no action, suit, or proceeding shall be pending before 
any court or quasi-judicial or administrative agency of any federal, state, 
local, or foreign jurisdiction wherein an unfavorable judgment, order, 
decree, stipulation, injunction, or charge would (i) prevent consummation of 
any of the transactions contemplated by this Agreement or (ii) cause any of 
the transactions contemplated by this Agreement to be rescinded following 
consummation (and no such judgment, order, decree, stipulation, injunction, 
or charge shall be in effect);

                                          21
<PAGE>

               (d)  the Purchaser shall have delivered to Seller and 
Shareholder a certificate (without qualification as to knowledge or 
materiality or otherwise) to the effect that each of the conditions specified 
above in Section 7.2(a)-(c) is satisfied in all respects;

               (e)  the Seller shall have obtained the approval of its Board 
of Directors for the transactions contemplated by this Agreement;

               (f)  the Seller and Shareholder shall have received from the 
Counsel for Purchaser, an opinion addressed to Seller and Shareholder and 
dated as of the Closing Date in form and substance attached hereto as Exhibit 
F; and

               (g)  the Seller or Shareholder may waive any condition 
specified in this Section 7.2 if it executes a writing so stating at or prior 
to the Closing.

     8.   TERMINATION.

          8.1. Termination of Agreement.  Certain of the parties may 
terminate this Agreement as provided below:

               (a)  8.1. the Purchaser, the Seller and Shareholder may 
terminate this Agreement by mutual written consent at any time prior to the 
Closing;

               (b)  the Purchaser may terminate this Agreement by giving 
written notice to the Seller at any time prior to the Closing in the event 
the Seller or Shareholder is in breach.

               (c)  the Purchaser may terminate this Agreement by giving 
written notice to the Seller on or before February 28, 1998 if the Purchaser 
is not reasonably satisfied with the results of its continuing business, 
legal, and accounting due diligence regarding the Seller.

               (d)  the Purchaser may terminate this Agreement by giving 
written notice to the Seller at any time prior to the Closing if the Closing 
shall not have occurred on or before February 28, 1998 by reason of the 
failure of any condition precedent under Section 7 hereof (unless the failure 
results primarily from the Purchaser itself breaching any representation, 
warranty, or covenant contained in this Agreement);

               (e)  the Seller or Shareholder may terminate this Agreement by 
giving written notice to the Purchaser at any time prior to the Closing if 
the Closing shall not have occurred on or before February 28, 1998 by reason 
of the failure of any condition precedent under Section 7 hereof (unless the 
failure results primarily from the Seller or Shareholder breaching any 
representation, warranty, or covenant contained in this Agreement).  In such 
event, this Agreement is null and void.

               (f)  the Purchaser shall have the right in its good faith 
discretion, to terminate this Agreement at any time if any material adverse 
change in the Business or Assets 

                                          22
<PAGE>

occurs or if any information is subsequently disclosed in the Schedules to be 
delivered by Seller hereunder after the date of execution of this Agreement 
and prior to the Closing which information may reasonably be expected to have 
a material adverse effect on the Business or the Assets following the Closing.

          8.2. Effect of Termination.  If any party terminates this Agreement 
pursuant to Section 8.1 above, all obligations of the parties hereunder shall 
terminate without any liability of any party to any other party (except for 
any liability of any party then in breach of this Agreement).

     9.   NATURE OF STATEMENTS AND SURVIVAL OF REPRESENTATIONS AND WARRANTIES 
OF SELLER AND SHAREHOLDER.  All statements of fact contained in this 
Agreement or in any written statement (including financial statements), 
certificate, schedule or other document delivered by or on behalf of Seller 
or Shareholder pursuant to this Agreement or in connection with the 
transactions contemplated hereby shall be deemed representations and 
warranties of Seller and Shareholder hereunder. All indemnifications, 
guarantees, covenants, agreements, representations and warranties made by 
Seller or Shareholder hereunder or pursuant hereto or in connection with the 
transactions contemplated hereby shall survive the Closing for a period of 
one year from the Closing Date, regardless of any investigation at any time 
made by or on behalf of Purchaser; provided, however, that any such 
representations,  warranties, covenants, agreements and indemnifications with 
regard to (i) taxes payable by Seller or with regard to the Business, the 
Assets or the Business Employees, (ii) environmental matters, (iii) 
employment law matters, and (iv) compliance with any Government Contracts 
shall survive, in each case, for the applicable limitation period under law 
or regulation with respect thereto.  Notwithstanding the foregoing, the 
covenants in Section 6.9 and in Sections 10, 11, 13, 14 and 18.11 hereof are 
acknowledged to be covenants intended to be binding on the parties after the 
Closing Date for such period as may be reasonably necessary to implement the 
terms thereof.

     10.  SPECIAL CLOSING AND POST-CLOSING COVENANTS.

          10.1. Delivery of Funds and Other Assets Collected by Purchaser; 
Power of Attorney.  To the extent Purchaser receives any funds or other 
assets in payment of receivables or work-in-process incurred prior to the 
Closing Date and not included in the Assets, Purchaser shall immediately 
deliver such funds and assets to Seller and take all steps necessary to vest 
title to such funds and assets in Seller.  

          10.2. Delivery of Funds and Other Assets Collected by Seller or 
Shareholder; Power of Attorney.  To the extent Seller or Shareholder receives 
any funds or other assets in payment of receivables or work-in-process 
incurred on or after the Closing Date, or in connection with any other Assets 
being sold to Purchaser hereto, each of Seller and Shareholder shall 
immediately deliver such funds and assets to Purchaser and take all steps 
necessary to vest title to such funds and assets in Purchaser.  

          10.3. In the event the NASA Ames FIPS Contract is awarded after the 
Closing Date:

                                          23
<PAGE>

               (a)  Seller and/or Shareholder and Purchaser shall enter into, 
as of the date of such award, a software license agreement substantially in a 
form acceptable to Purchaser and Seller, by which Purchaser has the right to 
use Seller's and/or Shareholder's software products for the performance of 
the NASA Ames FIPS Contract, which software license agreement shall contain a 
fee payable to Seller or Shareholder equal to two percent (2%) of the annual 
revenue realized by Purchaser under the NASA Ames FIPS Contract, but in no 
event more than Four Million Dollars ($4,000,000) over the entire term of the 
contract and, to the extent required under Section 6.9, the contractual 
arrangements referred to in such Section; and

               (b)  in the event  NASA Ames agrees to reimburse the cost of 
preparing the bid for the NASA Ames FIPS Contract, Seller and Purchaser shall 
cooperate in jointly pursuing a claim for such reimbursement, the amount of 
which shall be fully payable to Seller, less any out of pocket costs incurred 
by Purchaser in pursuing such reimbursement claim. In the event Purchaser (i) 
causes, in its sole discretion, such bid to be withdrawn, or (ii) otherwise 
refrains from taking any administrative action to which it is entitled in 
relation to such bid, and, in connection with such withdrawal or refraining, 
receives any form of compensation, Purchaser agrees to reimburse Seller its 
bid and protest costs incurred in preparing such bid (to the extent such 
amount is covered by such compensation received by Purchaser) and, to the 
extent any compensation remains after such reimbursement, the parties agree 
to negotiate in good faith a fair division of such remaining compensation.

          10.4. Leases. Seller shall make its best efforts to obtain executed 
consents to assignment or subleases from all lessors under the real property 
leases for the office space which was used by Seller in connection with the 
operation of the Business as of December 3, 1997 and shown on the floor plans 
attached as Schedule 10.4 hereto, which leases are listed on Schedule 3.3 
hereto, as soon as possible after the Closing Date and without any amendment 
or modification to the terms thereof as previously disclosed to Purchaser.  
In the event such consents to assignments or subleases are obtained, 
Purchaser will, from and after Closing, hold harmless Seller from any 
liability thereunder accruing as a result of acts, circumstances or 
obligations occurring after Closing, and Seller and Shareholder will hold 
harmless Purchaser from any liability thereunder accruing as a result of 
acts, circumstances or obligations occurring prior to Closing.  In the event 
such consents to assignment or subleases are not obtained without amendment 
or modification to the terms thereof as previously disclosed to Purchaser, 
Seller agrees to indemnify Purchaser for any losses suffered by Purchaser 
resulting from such amendment or modification. In the event Purchaser is 
required to vacate any such office space prior the expiration of any such 
lease for any reason other than Purchaser's default under any applicable 
lease or sublease, Seller hereby agrees to bear the costs incurred by 
Purchaser in the form of base rent and additional rent with respect to such 
new office space to the extent the same exceeds the amount Purchaser would 
have paid had Purchaser remained in the original office space under the 
original lease.

     11.  NON-COMPETITION AGREEMENT.  For a period commencing on the date 
hereof through the third anniversary of the Closing Date, neither Seller nor 
Shareholder, shall (i) at any location within the territorial boundaries of 
the continental United States, compete directly or indirectly with Purchaser 
(or Federal Data Corporation or any subsidiary thereof) in providing 

                                          24
<PAGE>

support effort personnel under customer direction on specific technical work 
assignments to either the National Aeronautics and Space Administration or 
the Jet Propulsion Laboratory similar to the services by support effort 
personnel under customer direction on specific technical work assignments 
currently provided to the National Aeronautics and Space Administration and 
the Jet Propulsion Laboratory under the Contracts, or (ii) solicit directly 
or indirectly any of the accounts of either the National Aeronautics and 
Space Administration or the Jet Propulsion Laboratory for support effort 
personnel under customer direction on specific technical work assignments.  
Each of Seller and Shareholder agrees that the limitations set forth herein 
on the rights of Seller are reasonable and necessary for the protection of 
the Purchaser.  In this regard, Seller and Shareholder specifically agree 
that the limitations as to period of time and geographic area, as well as all 
other restrictions on its activities specified herein, are reasonable and 
necessary for the protection of the Purchaser.  Seller and Shareholder 
further recognize and agree that violation of any of the agreements contained 
in this Section 11 will cause irreparable damage or injury to Purchaser, the 
exact amount of which may be impossible to ascertain, and that, for such 
reason, among others, Purchaser shall be entitled to an injunction, without 
the necessity of posting a bond, restraining any further violation of such 
agreements.  Such rights to any injunction shall be in addition to, and not 
in limitation of, any other rights and remedies Purchaser may have against 
Seller or Shareholder, including, but not limited to, the recovery of 
damages.  Further, it is agreed by Seller and Shareholder that in the event 
the provisions of this Agreement should ever be deemed to exceed the time or 
geographic limitations permitted by applicable law, then such provisions 
shall be reformed to the maximum time or geographic limitations permitted.  
The restrictions on competition by Seller and Shareholder in this Section 11 
do not include the provision of labor in support of Seller or Shareholder 
product or solution sales.

     12.  NONDISCLOSURE OF CONFIDENTIAL INFORMATION.  

          12.1. Seller's Nondisclosure.  Seller and Shareholder each 
recognizes and acknowledges that it has and will have access to certain 
confidential information of Seller that is included in the Assets (including, 
but not limited to, list of customers, and costs and financial information) 
that after the consummation of the transactions contemplated hereby will be 
valuable, special and unique property of Purchaser. Seller and Shareholder 
each agree that it will not disclose, and it will use all reasonable efforts 
to prevent disclosure by any other Person of, any such material confidential 
information to any Person, except to authorized representatives of Purchaser. 
 Seller and Shareholder recognize and agree that violation of any of the 
agreements contained in this Section 12 will cause irreparable damage or 
injury to Purchaser, the exact amount of which may be impossible to 
ascertain, and that, for such reason among others, Purchaser shall be 
entitled to an injunction, without the necessity of posting bond, therefor, 
restraining any further violation of such agreements. Such rights to any 
injunction shall be in addition to, and not in limitation of, any other 
rights and remedies Purchaser may have against Seller or Shareholder.

          12.2. Purchaser's Nondisclosure.  Purchaser recognizes and 
acknowledges that it has and will have access to certain confidential 
information of Seller that is included in the Assets (including, but not 
limited to, list of customers, and costs and financial information) that

                                          25
<PAGE>

prior to the consummation of the transactions contemplated hereby will be 
valuable, special and unique property of Seller.  Except to the extent 
necessary for its due diligence with respect to the consummation of the 
transaction contemplated hereby, Purchaser agrees that prior to the Closing 
it will not disclose, and it will use all reasonable efforts to prevent 
disclosure by any other Person of, any such material confidential information 
to any Person, except to authorized representatives of Purchaser.  Purchaser 
recognizes and agrees that violation of any of the agreements contained in 
this Section 12 will cause irreparable damage or injury to Seller, and/or 
Shareholder, the exact amount of which may be impossible to ascertain, and 
that, for such reason, among others, Seller and/or Shareholder shall be 
entitled to an injunction, without the necessity of posting bond, therefor, 
restraining any further violation of such agreements. Such rights to any 
injunction shall be in addition to, and not in limitation of, any other 
rights and remedies Seller and/or Shareholder may have against Purchaser.

     13.  ASSIGNMENT OF CONTRACTS.  Notwithstanding any other provision of 
this Agreement, nothing in this Agreement or any related document shall be 
construed as an attempt to assign (i) any contract which, as a matter of law 
or by its terms, is nonassignable without the consent of the other parties 
thereto unless such consent has been given, or (ii) any contract or claims as 
to which all of the remedies for the enforcement thereof enjoyed by Seller 
would not, as a matter of law or by its terms, pass to Purchaser as an 
incident of the transfers and assignments to be made under this Agreement.  
In order, however, that the full value of every contract and claim of the 
character described in clauses (i) and (ii) above and all claims and demands 
on such contracts may be realized for the benefit of Purchaser, Seller, at 
the request and expense and under the direction of Purchaser, shall take all 
such action and do or cause to be done all such things as will in the opinion 
of Purchaser, be necessary or proper in order that the obligations of Seller 
under such contracts may be performed in such manner that the value of such 
contract will be preserved and will inure to the benefit of Purchaser, and 
for, and to facilitate, the collection of the moneys due and payable and to 
become due and payable thereunder to Purchaser in and under every such 
contract and claim incurred after the Closing. Seller shall promptly pay over 
to Purchaser all moneys collected by or paid to it in respect of every such 
contract, claim or demand to the extent such moneys are earned by the 
Purchaser on or after the Closing Date. Nothing in this Section 13 shall 
relieve Seller of its obligation to obtain any consents required for the 
transfer of the Assets and all rights thereunder to Purchaser or shall 
relieve Seller from any liability to Purchaser for failure to obtain such 
consents.

     14.  SPECIAL PROVISIONS REGARDING EMPLOYEES OF SELLER.

          14.1. It is the intention of Purchaser, and Seller hereby 
acknowledges and agrees with such position, that any employees of Seller that 
Purchaser hires will be new employees of Purchaser as of the Closing Date or 
the date of hire, whichever is later.  Except as set forth in Section 14.3 
below, such new employees shall be entitled only to such compensation and 
employee benefits as are agreed to by such employees and Purchaser, or as are 
otherwise provided by Purchaser, in its sole discretion.

          14.2. Hiring of Employees.  

                                          26
<PAGE>

               (a)  Purchaser will use its reasonable efforts to hire the 
existing employees of Seller engaged in the Business in connection with its 
purchase of the Assets; provided however, that Purchaser shall be entitled to 
review employee records, conduct employee interviews and employee screening 
procedures used by Purchaser in its business, and may refuse to offer 
employment to any employee of Seller if such employee fails to meet the 
hiring criteria of Purchaser.

               (b)  Except as provided in Section 15.2(a) above, the parties 
agree that during the period of the Non-Competition Agreement specified in 
Section 11 hereof, neither Purchaser nor any affiliate of Purchaser shall 
actively solicit or recruit any employee of Seller or Shareholder, nor shall 
Seller or Shareholder, or any affiliate of Seller or Shareholder, actively 
solicit or recruit any employee of Purchaser.  For the purposes of this 
Section 15.2(b), the phrase "actively solicit or recruit" shall not include 
the publication of any advertisement for employment disseminated to the 
general public.

          14.3. Existing Employee Benefit Plans.  Purchaser shall have no 
obligation after the Closing to continue any pension plans or work benefit 
plans currently offered by Seller to its employees. 

          14.4. Indemnity Concerning Accrued Benefits.  Except as expressly 
assumed by Purchaser hereunder and as reflected in the Net Assets of Seller, 
Seller and Shareholder jointly and severally agree to indemnify and hold 
harmless Purchaser from and against any and all accrued and outstanding 
employee benefits, salary, vacation pay, sick leave, bonuses, commissions and 
other emoluments of its employees and from any liabilities or obligations 
relating to workers' compensation, disability, unemployment or severance 
claims and from any other employee related matters or liabilities with 
respect to Seller's employees arising on or before the Closing Date.

     15.  EXPENSES.  Whether or not the transactions contemplated hereby are 
consummated, Seller and Shareholder will pay all of their costs and expenses 
and Purchaser will pay all of its costs and expenses, incurred in connection 
with the preparation of and execution of this Agreement and the consummation 
of the transactions contemplated hereby, subject to any rights either Seller 
or Purchaser may have to recover damages by reason of any breach hereof by 
the other..

     16.  FURTHER ACTIONS.  From time to time, at the request of any party 
hereto; the other parties hereto shall execute and deliver such instruments 
and take such action as may be reasonably requested to evidence and implement 
the transactions contemplated hereby.

     17.  NOTICES.  All notices, requests, demands and other communications 
required permitted to be given hereunder shall be in writing and shall be 
deemed to have been duly given if delivered personally, given by prepaid 
telex or telegram or by facsimile or other similar instantaneous electronic 
transmission device or mailing first class, postage prepaid, certified United 
States mail, return receipt requested, as follows:

                                          27
<PAGE>

          (a)  If to Purchaser, at:

                    NYMA, Inc.
                    c/o Federal Data Corporation
                    4800 Hampden Lane
                    Bethesda, Maryland 20914
                    Attention:  Peter C. Belford, President
                    Facsimile No.: (301) 961-3892

               With a copy to:

                    Victoria J. Perkins, Esq.
                    Shaw, Pittman, Potts & Trowbridge
                    2300 N Street, NW
                    Washington, D.C. 20037
                    Facsimile No.: (202) 663-8007

          (b)  If to Seller or Shareholder, at:

                    Telos Corporation
                    19886 Ashburn Road
                    Ashburn, Virginia 20147
                    Attention: David Aldrich
                    Facsimile No.: (703) 724-3855

               With a copy to:

                    William L.P. Brownley, Esquire
                    Telos Corporation
                    19886 Ashburn Road
                    Ashburn, Virginia 20147
                    Facsimile No.: (703) 724-3855

               and:

                    John B. Connor, Esq.
                    John B. Connor, P.L.C.
                    1033 N. Fairfax Street, No. 310
                    Alexandria, Virginia 22314
                    Facsimile No:  (703) 836-1799

provided that any party may change its address for notice by giving to the 
other party written notice of such change. Any notice given under this 
Section 17 shall be effective (i) if delivered personally, when delivered, 
(ii) if sent by telex or telegram or by facsimile or other similar 
instantaneous electronic transmission device, twenty-four (24) hours after 
sending, and (iii) if sent via a nationally recognized overnight delivery 
service, forty-eight (48) hours after sending.

     18.  GENERAL PROVISIONS.

                                          28
<PAGE>

          18.1. GOVERNING LAW; INTERPRETATION; SECTION HEADINGS. THIS 
AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED AND ENFORCED IN ACCORDANCE WITH 
THE LAWS OF THE STATE OF MARYLAND, WITHOUT REGARD TO CONFLICT-OF-LAWS RULES.  
THE SECTION HEADINGS CONTAINED HEREIN ARE FOR PURPOSES OF CONVENIENCE ONLY, 
AND SHALL NOT BE DEEMED TO CONSTITUTE A PART OF THIS AGREEMENT OR TO AFFECT 
THE MEANING OR INTERPRETATION OF THIS AGREEMENT IN ANY WAY. ANY ACTION OR 
PROCEEDING ARISING UNDER THIS AGREEMENT SHALL TAKE PLACE IN THE UNITED STATES 
DISTRICT COURT FOR THE DISTRICT OF MARYLAND.

          18.2. Severability.  Should any provision of this Agreement be held 
unenforceable or invalid under the laws of the United States of America or 
the State of Maryland, or under any other applicable laws of any other 
jurisdiction, then the parties hereto agree that such provision shall be 
deemed modified for purposes of performance of this Agreement in such 
jurisdiction to the extent necessary to render it lawful and enforceable, or 
if such a modification is not possible without materially altering the 
intention of the parties hereto, then such provision shall be severed 
herefrom for purposes of performance of this Agreement in such jurisdiction. 
The validity of the remaining provisions of this Agreement shall not be 
affected by any such modification or severance, except that if any severance 
materially alters the intentions of the parties hereto as expressed herein (a 
modification being permitted only if there is no material alteration), then 
the parties hereto shall use their best reasonable effort to agree to 
appropriate equitable amendments to this Agreement in light of such 
severance, and if no such agreement can be reached within a reasonable time, 
any party hereto may initiate arbitration under the then current rules of the 
American Arbitration Association to determine and effect such appropriate 
equitable amendments.

          18.3. Entire Agreement.  This Agreement sets forth the entire 
agreement and understanding of the parties hereto with respect to the 
transactions contemplated hereby and supersedes all prior agreements, 
arrangements and understandings related to the subject matter hereof.  No 
representation, promise, inducement or statement of intention has been made 
by any party hereto which is not embodied in this Agreement, and no party 
hereto shall be bound by or liable for any alleged representation, promise, 
inducement or statement of intention not so set forth.

          18.4. Binding Effect.  All the terms, provisions, covenants and 
conditions of this Agreement shall be binding upon and inure to the benefit 
of and be enforceable by the parties hereto and their respective heirs, 
executors, administrators, representatives, successors and assigns.

          18.5. Assignment.  This Agreement and the rights and obligations of 
the parties hereto shall not be assigned or delegated by any party hereto 
without the prior written consent of the other parties hereto; provided, 
however, that Purchaser may assign its rights and obligations hereunder to 
Federal Data Corporation or to a wholly-owned (directly or indirectly) 
subsidiary of Federal Data Corporation; provided that upon any such 
assignment, Purchaser shall remain liable for the obligations of Purchaser 
hereunder.

                                          29
<PAGE>

          18.6. Amendment; Waiver.  This Agreement may be amended, modified, 
superseded or canceled, and any of the terms, provisions, representations, 
warranties, covenants or conditions hereof may be waived, only by a written 
instrument executed by all parties hereto, or, in the case of a waiver, by 
the party waiving compliance.  The failure of any party at anytime or times 
to require performance of any provision hereof shall in no manner affect the 
right to enforce the same.  No waiver by any party of any condition contained 
in this Agreement, or of the breach 6f any term, provisions, representation, 
warranty or covenant contained in this Agreement, in any one or more 
instances, shall be deemed to be or construed as a further or continuing 
waiver of any such condition or breach, or as a waiver of any other condition 
or of the breach of any other term, provision, representation, warranty or 
covenant.

          18.6. Gender; Numbers.  All references in this Agreement to the 
masculine, feminine or neuter genders shall, where appropriate, be deemed to 
include all other genders.  All plurals used in this Agreement shall, where 
appropriate, be deemed to be singular, and vice versa.

          18.8. Counterparts.  This Agreement may be executed simultaneously 
in two or more counterparts, each of which shall be deemed an original, but 
all of which together shall constitute one and the same instrument.  This 
Agreement shall be binding when one or more counterparts hereof, individually 
or taken together, shall bear the signatures of the parties reflected hereon 
as signatories.

          18.9. Telecopy Execution and Delivery.  A facsimile, telecopy or 
other reproduction of this Agreement may be executed by one or more parties 
hereto, and an executed copy of this Agreement may be delivered by one or 
more parties hereto by facsimile or similar instantaneous electronic 
transmission device pursuant to which the signature of or on behalf of such 
party can be seen, and such execution and delivery shall be considered valid, 
binding and effective for all purposes.  At the request of any party hereto, 
all parties hereto agree to execute an original of this Agreement as well as 
any facsimile, telecopy or other reproduction hereof.

          18.10. Litigation Support.  In the event and for so long as any 
party actively is contesting or defending against any action, suit, 
proceeding, hearing, investigation, charge, complaint, claim, or demand in 
connection with (i) any transaction contemplated under this Agreement or (ii) 
any fact, circumstance, condition, occurrence, event, incident, action, 
failure to act, or transaction prior to the Closing Date directly involving 
Seller, the Business or the Assets, each of the other parties will make all 
reasonable efforts to cooperate with it and its counsel in the contest or 
defense, make available their personnel, and provide such testimony and 
access to their books and records as shall be reasonably necessary in 
connection with the contest or defense, all at the sole cost and expense of 
the contesting or defending party (unless the contesting or defending Party 
is entitled to indemnification therefor under section 18.11 below).

          18.11. Indemnification.

               (a)  Indemnification Provisions for Benefit of the Purchaser. 
In the event Seller or Shareholder breaches any of its representations, 
warranties, and covenants in this Agreement, provided that the Purchaser 
makes a written claim for indemnification against the 

                                          30
<PAGE>

Seller) pursuant to this section 18.11 within the survival period described 
above, then Seller and Shareholder jointly and severally agree to indemnify 
the Purchaser from and against any Adverse Consequences the Purchaser may 
suffer through and after the date of the claim for indemnification (including 
any Adverse Consequences the Purchaser may suffer after the end of any 
applicable survival period) directly resulting from or caused by the breach; 
provided, however, that (A) Seller and Shareholder shall not have any 
obligation to indemnify the Purchaser from and against any Adverse 
Consequences resulting from, arising out of or caused by the breach of any 
representation or warranty of Seller or Shareholder (other than those set 
forth in the last sentence of section 4.8 hereof or in section 4.29 hereof) 
until Purchaser has suffered Adverse Consequences by reason of all such 
breaches in excess of $350,000 in the aggregate, after which point Seller and 
Shareholder will be obligated only to indemnify the Purchaser from and 
against further such Adverse Consequences.  For purposes hereof, "Adverse 
Consequences" means all actions, suits, proceedings, hearings, 
investigations, charges, complaints, claims, demands, injunctions, judgments, 
orders, decrees, rulings, damages, dues, penalties, fines, costs, reasonable 
amounts paid in settlement, liabilities, obligations, taxes, liens, losses, 
expenses, and fees, including court costs and reasonable attorneys' fees and 
expenses.

               (b)  Indemnification Provisions for Benefit of the Seller.  In 
the event (i) the Purchaser breaches any of its representations, warranties, 
and covenants contained herein, provided that Seller makes a written claim 
for indemnification against the Purchaser pursuant to this section 18.11 
within the survival period described above, then the Purchaser agrees to 
indemnify Seller and Shareholder from and against any Adverse Consequences 
the Seller may suffer through and after the date of the claim for 
indemnification (including any Adverse Consequences the Seller or Shareholder 
may suffer after the end of any applicable survival period) resulting from or 
caused by the breach or claim.

               (c)  Matters Involving Third Parties.

          (i)  If any third party shall notify any Party (the "Indemnified 
     Party") with respect to any matter (a "Third Party Claim") which may 
     give rise to a claim for indemnification against any other Party (the 
     "Indemnifying Party") under this section 18.11, then the Indemnified 
     Party shall promptly notify each Indemnifying Party thereof in writing 
     within ten (10) days after the Indemnified Party has Knowledge thereof. 

          (ii) Any Indemnifying Party will have the right to assume the 
     defense of the Third Party Claim with counsel of his or its choice 
     reasonably satisfactory to the Indemnified Party at any time within ten 
     (10) days after the Indemnified Party has given notice of the Third 
     Party Claim; provided, however, that the Indemnifying Party shall 
     conduct the defense of the Third Party Claim actively and with all 
     reasonable diligence thereafter in order to preserve its rights in this 
     regard; and provided further that the Indemnified Party may retain 
     separate co-counsel at its sole cost and expense and participate in the 
     defense of the Third Party Claim. Indemnifying Party's counsel will 
     consult with such co-counsel, but shall remain in sole control of such 
     action. 

                                          31
<PAGE>

          (iii) So long as the Indemnifying Party has assumed and is 
     conducting the defense of the Third Party Claim in accordance with this 
     section 18.11, (A) the Indemnifying Party will not consent to the entry 
     of any judgment or enter into any settlement with respect to the Third 
     Party Claim without the prior written consent of the Indemnified Party 
     (not to be withheld, conditioned or delayed unreasonably) unless the 
     judgment or proposed settlement involves only the payment of money 
     damages by one or more of the Indemnifying Parties and does not impose 
     any material injunction or other equitable relief upon the Indemnified 
     Party and (B) the Indemnified Party will not consent to the entry of any 
     judgment or enter into any settlement with respect to the Third Party 
     Claim without the prior written consent of the Indemnifying Party (not 
     to be withheld, conditioned or delayed unreasonably). 

               (d)  In the event none of the Indemnifying Parties assumes and 
conducts the defense of the Third Party Claim in accordance with this section 
18.11, however, (A) the Indemnified Party may defend against, and consent to 
the entry of any judgment or enter into any settlement with respect to, the 
Third Party Claim in any manner he or it reasonably may deem appropriate (and 
the Indemnified Party need not consult with, or obtain any consent from, any 
Indemnifying Party in connection therewith) and (B) the Indemnifying Parties 
will remain responsible for any Adverse Consequences the Indemnified Party 
may suffer resulting from, arising out of, relating to, in the nature of, or 
caused by the Third Party Claim to the extent provided in this section 8.

               (e)  Determination of Adverse Consequences.  The Parties shall 
make appropriate adjustments for tax consequences and insurance coverage and 
take into account the time cost of money in determining Adverse Consequences 
for purposes of this section 18.11. All indemnification payments under this 
section 18.11 shall be deemed adjustments to the Purchase Price.  

     Exclusive Remedy.  Purchaser, Seller and Shareholder acknowledge and 
agree that, except as otherwise set forth in this Agreement, the foregoing 
indemnification provisions in this section 18.11 shall be the exclusive 
remedy of the Purchaser, Seller and Shareholder with respect to matters 
relating to Seller, the Business, the Assets  and the transactions 
contemplated by this Agreement arising or of which the Indemnified Party had 
knowledge or should have had knowledge only after the Closing.

                                          32
<PAGE>

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

                              PURCHASER


                              NYMA, INC.,
                              a Maryland corporation


                              By: /s/ Sterling E. Phillips, Jr.
                              Name: Sterling E. Phillips, Jr.
                              Title: Vice President
ATTEST:

Catherine M. Clark
Secretary
                              SHAREHOLDER

                              TELOS CORPORATION, a 
                              Maryland corporation


                              By: /s/ David S. Aldrich
                              Name: David S. Aldrich
                              Title: President
ATTEST:

Gerald D. Calhoun
Secretary

                              SELLER

                              TELOS CORPORATION, a
                              California corporation


                              By: /s/ Lorenzo Tellez
                              Name: Lorenzo Tellez
                              Title: Treasurer and Chief Financial Officer
ATTEST:

Gerald D. Calhoun
Secretary

                                       33

<PAGE>

The following schedules have been omitted because they are not deemed to be 
material to an investment decision.  The Company undertakes to furnish 
supplementally a copy of any omitted schedule to the Commission upon request.

Schedule 2.1 - Purchase and Sale of Assets
Schedule 3.3 - Assumed Liabilities and Obligations 
Schedule 4.3 - Financial Statements 
Schedule 4.7 - Employee Matters
Schedule 4.8 - Contracts and Agreements 
Schedule 4.10 - Properties, Assets and Leasehold Estates
Schedule 4.13 - Licenses and Permits.  Compliance with Governmental Regulations
Schedule 4.22 - Customer List
Schedule 4.25 - Insurance




<PAGE>

                              INTERIM AGREEMENT

     This INTERIM AGREEMENT (the "Agreement") is made and entered into as of 
the 28th day of February, 1998, by and between Telos Corporation, a 
California corporation and Telos Corporation, a Maryland corporation (jointly 
the "Seller"), and NYMA, Inc. ("Buyer"), a Maryland corporation.

     WHEREAS, Seller provides information technology equipment and services 
under certain contracts (the "JPL Contracts") with the Jet Propulsion 
Laboratory ("JPL"), and under certain contracts with other entities (the 
"Other Contracts", and together with the JPL Contracts, the "Contracts"), 
which Contracts are to be transferred to Buyer, as specifically set forth in 
the Asset Purchase Agreement between the parties dated February 20, 1998 (the 
"APA");

     WHEREAS, the Closing, as defined in Section 2.3 of the APA, occurred at 
the close of business on February 28, 1998; and

     WHEREAS, Seller and Buyer have agreed to take all reasonable steps 
necessary to attempt to obtain novations of the Contracts in favor of Buyer, 
and had anticipated that the novation of the JPL Contracts would occur prior 
to Closing under the APA; and

     WHEREAS, the parties wish to set forth certain terms of the relationship 
between Seller and Buyer from the date hereof until the novation of each such 
JPL Contract.

                                  AGREEMENT

     NOW, THEREFORE, in consideration of the premises and the mutual 
covenants contained herein, and for other good and valuable consideration, 
the receipt and sufficiency of which are hereby acknowledged, Seller and 
Buyer agree as follows:

<PAGE>

                                   ARTICLE I
                   RELATIONSHIP OF PARTIES PRIOR TO NOVATION

     The parties intend that Buyer shall have the economic and operational 
benefit and obligations of each Contract from and after the date hereof.  The 
parties acknowledge, however, that until the novation of any Contract to 
Buyer, Seller shall continue technically to be the contracting party 
thereunder.

     A.   Buyer shall, at the sole cost and expense of Buyer, timely perform 
all obligations required of Seller under each Contract in accordance with the 
respective terms and conditions of each such Contract (including any and all 
amendments, options, modifications and orders issued thereunder prior to and 
after the date hereof and such other terms and conditions as may have been 
duly incorporated into each such Contract), including, but not limited to, as 
appropriate, (i) providing all employees, equipment and services required to 
be provided under such Contracts in accordance with the specifications, terms 
and conditions of such Contract, and (ii) providing all general and 
administrative duties necessary or ordinarily attendant to the performance of 
the Contracts, including preparation of invoices and transmission of such 
invoices to Seller for submission to the contracting party.  Buyer shall 
indemnify Seller for its failure to perform any such Contracts in accordance 
with Article III below.  The parties acknowledge that, between Buyer and 
Seller, the Business Employees (as defined in the APA) shall become employees 
of Buyer as of the date hereof, for purposes of performing Buyer's 
obligations under this Paragraph A.

     B.   Seller shall, as appropriate, (i) as soon as practicable, remit to 
Buyer, by wire transfer, any payments received by Seller under the Contracts 
and (ii) enforce for the benefit, and at the sole cost and expense of Buyer, 
all other rights of Seller under such Contracts.

     C.   The parties intend that assuming the novations of the JPL Contracts 
are received by April 15, 1998, Seller shall bear no cost or expense with 
regard to the performance of the Contracts on or after the date hereof, and 
shall be protected from any failure by Buyer to perform under any such 
Contract fully in accordance with its terms.  Accordingly, Buyer shall 
indemnify Seller in accordance with Article III below.

     D.   Buyer shall have the right to use its reasonable discretion in the 
performance under the Contracts on and after the date hereof, except to the 
extent such discretion conflicts 

                                       2

<PAGE>

with any requirements of any Contract, provided, however, that in the event 
any decision of Buyer under this Paragraph D could materially increase 
Seller's liability or obligations under any such Contract, Buyer shall not 
act on such decision without the prior written consent of Seller, which 
consent shall not be unreasonably withheld, and further provided that Buyer 
shall indemnify Seller for such decisions in accordance with Article III 
below.

                                    ARTICLE II
                                      COSTS

     Each party shall bear their own costs and expenses incurred in the 
performance of this Agreement, other than costs billable under the Contracts.

                                   ARTICLE III
                                 INDEMNIFICATION

     Buyer agrees to indemnify and hold harmless Seller from and against any 
claim, loss, liability, damages, cost or expense (including reasonable 
attorneys' fees and expenses) arising from or related to the Contracts and 
related to any fact or circumstance occurring on or after the date hereof and 
prior to termination pursuant to Paragraph C of Article IV, or to the failure 
of Buyer to perform, or delay by Buyer in performance of, any obligation of 
Buyer hereunder.  Notwithstanding the foregoing, Buyer shall not be obligated 
to indemnify Seller with respect to any matter as to which Seller is 
expressly required to indemnify Buyer under any other agreement.

     Seller agrees to indemnify and hold harmless Buyer from and against any 
claim, loss, liability, damages, cost or expense (including reasonable 
attorneys' fees and expenses) arising from or related to the Contracts and 
related to any fact or circumstance occurring prior to the date hereof, or to 
the failure of Seller to perform, or delay by Seller in performance of, any 
obligation of Seller hereunder.  Notwithstanding the foregoing, Seller shall 
not be obligated to indemnify Buyer with respect to any matter as to which 
Buyer is expressly required to indemnify Seller under any other agreement.

                                       3

<PAGE>

                                   ARTICLE IV
                                      TERM

     A.   Current Contracts.  The term of this Agreement shall extend with 
respect to the Contracts from the date hereof until such Contracts are duly 
novated to Buyer or, to the close of business, April 15, 1998, if novation of 
the JPL Contracts has not yet been consummated by such time.  Notwithstanding 
the foregoing, each party's obligation to indemnify the other, pursuant to 
Article III hereof, shall survive the expiration or termination of this 
Agreement.

     B.   Timely Receipt of Novation.  If the appropriate novations relating 
to each of the JPL Contracts are received from JPL prior to the close of 
business on April 15, 1998, this Agreement shall terminate as to the JPL 
Contracts upon Buyer's return of the original Letter of Credit issued to 
Buyer by NationsBank concurrently with the closing under the APA.

     C.   Failure to Receive Novation.  The parties acknowledge that Buyer's 
willingness to implement the APA has been and continues to be conditioned on 
successful novation of the JPL Contracts.  Accordingly, if the appropriate 
novations relating to the JPL Contracts are not received from JPL by close of 
business on April 15, 1998, the following provisions shall apply:

          1.   This Agreement and the APA shall terminate.

          2.   Notwithstanding anything to the contrary set forth herein, as 
of the date of such termination, the parties shall provide all reasonable 
cooperation in an attempt to minimize any interruption in services to or 
adverse effect upon the Contracts or Business Employees.

          3.   The parties shall take all reasonable steps toward the 
objective that the economic benefits and obligations of the Contracts during 
the period from the effective date hereof and such termination shall accrue 
to Seller. Such steps shall include, without limitation, the prompt invoicing 
by Seller for any work performed by Buyer under the Contracts on or after the 
date hereof, and the prompt wire transfer by Seller to Buyer of any amounts 
received by Seller with respect to such invoices.

                                   ARTICLE V
                                 MISCELLANEOUS

     A.   Severability.  If any provision of this Agreement shall, to any 
extent, be invalid or unenforceable, the remainder of this Agreement (or the 
application of such provisions to persons 

                                          4

<PAGE>

or circumstances other than those in respect to which it is invalid or 
unenforceable) shall not be affected thereby, and each provision of this 
Agreement, unless specifically conditioned upon such invalid or unenforceable 
provision, shall be valid and enforceable to the fullest extent permitted by 
law.

     B.   Choice of Law.  This Agreement shall be governed and construed in 
accordance with the laws of the State of Maryland without regard to the 
conflicts of law principles thereof.

     C.   Assignment.  This Agreement shall inure to the benefit of and be 
binding upon the parties hereto and their respective successors and assigns. 
Each party's right to assign this Agreement shall be coextensive with such 
party's rights to assign the agreement by which Seller shall sell the assets 
of its TIS division to Buyer.

     D.   Further Assurances.  Each Party to this Agreement shall execute 
such documents and take such further actions as may be reasonably necessary 
to implement the provisions of this Agreement.

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

     F.   Headings.  The section headings contained in this Agreement are 
inserted for convenience only and shall not affect in any way the meaning or 
interpretation of this Agreement.

     G.   Notices.  All notices, requests, demands, claims, and other 
communications hereunder shall be made in accordance with the requirements 
set forth in the agreement by which Seller shall sell substantially all of 
its assets to Buyer.

     H.   Expenses.  Except as otherwise set forth herein, Buyer and Seller 
shall each bear its own costs and expenses (including legal fees and 
expenses) incurred in connection with this Agreement and the transactions 
contemplated hereby.

     I.   APA.  To the extent of any contradiction or inconsistency between 
this Agreement and the APA, the terms of this Agreement shall control.

                                       5

<PAGE>

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

                                       NYMA, INC,
                                       a Maryland corporation


                                       By: /s/ Sterling E. Phillips, Jr.
                                          ---------------------------------
                                       Name:
                                            -------------------------------
                                       Title:
                                             ------------------------------


                                       TELOS CORPORATION,
                                       a Maryland corporation

                                       By: /s/ David S. Aldrich
                                          ---------------------------------
                                       Name:
                                            -------------------------------
                                       Title:
                                             ------------------------------


                                       TELOS CORPORATION,
                                       a California corporation

                                       By: /s/ William L.P. Browley
                                          ---------------------------------
                                       Name:
                                            -------------------------------
                                       Title:
                                             ------------------------------

                                       6


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