Exhibit 10.26
                               SUBLEASE AGREEMENT

                                     PARTIES

This instrument, for reference purposes only, dated this 24h day of April, 2000,
by and between SOFTWARE  TECHNOLOGY,  INC., a Florida corporation  ("Sublessor")
and RAYTHEON COMPANY, an Delaware company  ("Sublessee") as a Sublease under the
Office Lease dated August 7, 1992,  entered  into by  MASSACHUSETTS  MUTUAL LIFE
INSURANCE  COMPANY as Landlord,  and  Sublessor as Tenant.  A copy of said Lease
(hereinafter  referred to as the "Prime  Lease") is marked as Exhibit "A" and is
attached hereto and made a part hereof.  The term Lessor or Landlord used in the
Prime Lease is herein after referred to as Prime Lessor.

                                    PREMISES

Sublessor  leases to Sublessee and Sublessee  hires from Sublessor those certain
premises  leased to  Sublessor  under the Prime Lease  situated in the  building
numbered 14175 Sullyfield  Circle,  Chantilly,  Virginia 20151 (the "Building"),
and  commonly  known  as  Suite G  (hereinafter  referred  to as the  "Subleased
Premises").  Sublessor and  Sublessee  hereby agree that for all purposes of the
Sublease,  including  the  computation  of rent  and  additional  rent  that the
Subleased Premises shall comprise 11,188 rentable square feet.

                                      TERM

The term of this  Sublease  shall  be for a period  of  forty-two  (42)  months,
commencing on June 1, 2000 (the "Commencement Date"), and ending on November 30,
2003 (the "Expiration Date"), unless sooner terminated pursuant to any provision
hereof.  Notwithstanding  said  stated  Commencement  Date,  if for  any  reason
Sublessor  cannot deliver  possession of the Subleased  Premises to Sublessee by
the Commencement Date Sublessee shall not be obligated to pay rent or additional
rent or other charges  until the Subleased  Premises are delivered and Sublessor
shall provide Sublessee with one (1) days free rent for every day of delay after
June 15, 2000 except, without limitation, because the Prime Lessor has failed or
refuses  to grant its  consent  to this  Sublease  or if such delay is caused by
force  majeure.  Such  failure,  however,  shall not affect the validity of this
Sublease or the obligations of Sublessee hereunder or extend the term hereof. If
Sublessor  does  not  deliver   possession  of  the  Subleased  Premises  within
forty-five  (45) days from said  stated  Commencement  Date,  Sublessee  may, at
Sublessee's option, by notice in writing to Sublessor,  cancel this Sublease. If
this  Sublease is  cancelled  as  aforesaid,  Sublessor  shall return any monies
previously  deposited by Sublessee and the parties shall be discharged  from all
liabilities  hereunder  (including  any  free  rent  obligations).  No  delay in
delivery  of  possession  of the  Subleased  Premises  shall  extend  the stated
expiration date of this Sublease.

In the event that  Sublessor  shall  permit  Sublessee  to occupy the  Subleased
Premises prior to the  Commencement  Date of the term and sublessee shall occupy
the same or any portion  thereof,  such occupancy shall be subject to all of the
provisions of this Sublease  including the payment of rent and  additional  rent
and other charges.  Said early possession shall not advance the termination date
of this Sublease.

                             ACCEPTANCE OF PREMISES

Except as set forth  below,  the  Subleased  Premises  will be  delivered by the
Sublessor,  and accepted by the Sublessee, in their "as-is" condition subject to
latent defects not reasonably discoverable through visible inspection. Sublessor
is not obligated to make any improvements or repairs to the Subleased  Premises.
Notwithstanding  the  foregoing,  Sublessor  shall  cooperate  with Sublessee to
enforce and obtain the  performance  of Landlord's  obligations  under the Prime
Lease,  without cost to  Sublessor.  The  Sublessee  has had an  opportunity  to
inspect the Subleased  Premises and has found the  Subleased  Premises to be fit
for the  Sublessee's  use. The  Sublessee  accepts the premises with all systems
(including,   without  limitation,   heating,   ventilating,  air  conditioning,
telephone, etc.) to be in good working order and repair. Failure of Sublessee to
notify  Sublessor  of any  problems or issues with such  systems  within 30 days
after  the  commencement  date of the term  shall be  deemed  an  acceptance  by
Sublessee  that such systems are in good working order.  In the event  Sublessee
requires that  alterations be made to the Subleased  Premises,  all  alterations
shall be subject to the  reasonable  approval of the  Sublessor and to the terms
and conditions of the Prime Lease.  Any alterations or improvements  made to the
Subleased  Premises  by  Sublessee  shall be  removed at  Expiration  Date if so
requested  by  Sublessor  or the  Prime  Lessor at the time  Sublessee  requests
consent  from  Sublessor  or the Prime  Lessor  to  improve  or alter  Subleased
Premises.  Sublessor  shall be responsible  for any damage done to the Subleased
Premises in the process of Sublessor moving in or out of the Premises. Sublessee
shall not be  required  to remove  any  improvements  that were  located  in the
Premises on the Sublease Commencement Date.
<PAGE>

                                      RENT

Sublessee  shall  pay to  Sublessor  as rent  for the  Subleased  Premises,  the
following:

Eleven thousand,  One hundred,  Eighty-Eight and 00/100 Dollars ($11,188.00) per
month  commencing  on  Sublessee's  possession of the  Subleased  Premises,  and
continuing up to and including May 31, 2001;

Eleven Thousand, Five Hundred,  Twenty-Three and 64/100 Dollars ($11,523.64) per
month  commencing  on June 1, 2001 and  continuing  up to and  including May 31,
2002;

Eleven Thousand,  Eight Hundred,  Sixty-Nine and 35/100 Dollars ($11,869.34) per
month  commencing  on June 1, 2002 and  continuing  up to and  including May 31,
2003;

Twelve Thousand,  Two Hundred,  Twenty-Five and 43/100 Dollars  ($12,225.43) per
month commencing on June 1, 2003 and continuing up to and including November 30,
2003.

Rent for any  period  during  the term  hereof  which is for less than one month
shall be a pro rata portion of the monthly installment. The rent will be paid in
advance,  on or  before  the  first day of each  month  during  the term of this
Sublease.  Rent and additional  rent and other charges shall be payable  without
notice  or  demand,  without  any  deduction,  offset,  or  abatement  except as
otherwise  provided in an  immediately  available  funds of the United States of
America to Sublessor at:

         Software Technology, Inc.
         1225 Evans Road
         Melbourne, FL  32904-2314
         Attention:  Sally Ball

or to such other person or at such  other  place  as  Sublessor may designate in
writing.

Commencing as of the Commencement  Date,  Sublessee shall also pay to Sublessor,
as  additional  rent,  its prorata share  (currently  33.32% of the Building and
7.72% of the  Property)  of  Operating  Expenses  and Real Estate Taxes (as such
items are  defined  in the Prime  Lease).  Notwithstanding  the  foregoing,  the
Operating  Expenses  shall not include any expenses which will be paid fully and
directly by  Sublessee.  Sublessee  shall also pay to  Sublessor,  as additional
rent,  any other sums and charges  (except  fixed  rent)  required to be paid by
Sublessor to Prime  Lessor under the Prime Lease,  whether or not referred to as
additional  rent for charges  incurred  during the sublease term. All additional
rent  payments by Sublessee to  Sublessor  shall be made at least within  thirty
(30) days of invoice from Sublessor to Sublessee.

                            SUBLEASING AND ASSIGNMENT

Sublessee's right to sublet or assign the Subleased Premises shall be subject to
Sublessor's  and  Prime  Lessor's  approval,  which  shall  not be  unreasonably
withheld,  conditioned or delayed,  subject to the Prime Lease.  Notwithstanding
the foregoing,  Sublessee  shall have the right to assign the Sublease or sublet
all or any portion of the Subleased Premises to: (1) any entity resulting from a
merger  or  consolidation  with  Sublessee,  (2) any  entity  succeeding  to the
business and assets of Sublessee;  (3) any entity controlled by,  controlling or
under common control with Sublessee.

                  PROVISIONS CONSTITUTING SUBLEASE; SUBORDINATE
              POSITION OF THIS INSTRUMENT; CERTAIN COVENANTS, ETC.

(a) Except for Section 1 (Term),  Section 5 (Improvements to Premises),  Exhibit
"D" (Base Rent), Section 13 (Default),  Section 2.6. (Security Deposit), Section
1.4. (Holding Over), Section 16 (Notices), Section 18.13. (Commissions), Exhibit
"E",  Exhibit  "B";  and except as the  provisions  of the prime lease may be in
conflict or inconsistent  with the provisions set forth in this instrument,  all
of the terms and conditions contained in the Prime Lease are incorporated herein
as terms and conditions of this Sublease, with each reference in the Prime Lease
to Lessor or Landlord and to Lessee or Tenant to be deemed to refer to Sublessor
and Sublessee,  respectively, and such incorporated provisions together with all
of the provisions  contained in this instrument  shall be the complete terms and
conditions of this Sublease.
<PAGE>

(b) This  Sublease  is subject to all of the terms and  conditions  of the Prime
Lease  unless  specifically  excepted  herein,  and  Sublessee  shall assume and
perform the  obligations  of  Sublessor  as Tenant under said Prime Lease to the
extent said terms and conditions are applicable to the Subleased Premises.  Both
Sublessor  and  Sublessee  agree not to commit or permit to be  committed on the
Subleased  Premises,  any  act or  omission  which  shall  violate  any  term or
condition of the Prime Lease or cause or allow the Prime Lease to be terminated.
In the event of the  termination  of  Sublessor's  interest as Tenant  under the
Prime  Lease,  except by  termination  because the default of the Prime Lease by
Sublessor or by voluntary termination of the Prime Lease by Sublessor, then this
Sublease  shall  terminate  coincidentally  therewith  without any  liability of
Sublessor to Sublessee.

(c) SERVICES.  Landlord  hereby grants to Tenant the right to receive all of the
services and benefits  with respect to the Premises  which are to be provided by
Prime Landlord under the Prime Lease. Landlord shall have no duty to perform any
obligations of Prime  Landlord which are, by their nature,  the obligation of an
owner or manager of real property.  For example,  Landlord shall not be required
to provide  the  services  or repairs  which the Prime  Landlord  is required to
provide under the Prime Lease.  Landlord shall have no responsibility  for or be
liable to Tenant for any default, failure or delay on the part of Prime Landlord
in the  performance  or observance by Prime  Landlord of any of its  obligations
under the Prime  Lease,  nor shall such  default by Prime  Landlord  affect this
Sublease  or waive or  defer  the  performance  of any of  Tenant's  obligations
hereunder  except to the  extent  that such  default by Prime  Landlord  excuses
performance  by Landlord under the Prime Lease.  Notwithstanding  the foregoing,
the  parties  contemplate  that  Prime  Landlord  shall,  in fact,  perform  its
obligations  under the Prime Lease and in the event of any default or failure of
such  performance by Prime  Landlord,  Landlord agrees that it will, upon notice
from tenant,  make demand upon Prime Landlord to perform its  obligations  under
the prime lease and, provided that Tenant  specifically  agrees to pay all costs
and  expenses  of  Landlord  and  provided  Landlord  with  security  reasonable
satisfactory  to Landlord  to pay such costs and  expenses,  Landlord  will take
appropriate legal action to enforce the Prime Lease.

ADDITIONAL  SERVICES.  Landlord  shall  cooperate  with  Tenant  to cause  Prime
Landlord to provide  services  required by Tenant in addition to those otherwise
required to be provided by Prime  Landlord  under the Prime Lease.  Tenant shall
pay Prime Landlord's  charge for such services promptly after having been billed
therefore  by Prime  Landlord or by  Landlord.  If at any time a charge for such
additional services is attributable to the use of such services both by Landlord
and by Tenant,  the cost thereof shall be equitably divided between Landlord and
Tenant.

(d) Anything in this instrument to the contrary  notwithstanding,  Sublessor and
Sublessee   shall  not  be  liable  to  the  other  party  for  the  incidental,
consequential or special damages.
<PAGE>

(e)  Wherever in the Prime Lease  Lessee or Tenant is required to give notice to
the Lessor or Landlord thereunder, Sublessee shall be required to give notice to
Sublessor at lease and additional  five (5) days in advance of the time required
of Lessee or Tenant  thereunder  however in no event shall  Sublessee  have less
than  five (5) days  notice.  Whenever  in the Prime  Lease  Lessee or Tenant is
required  to do an act or cure a  default  within a  specified  period  of time,
Sublessee  shall  perform  such act and cure such default at least five (5) days
prior to the time  required of Lessee or Tenant  thereunder  however in no event
shall Sublessee have less than five (5) days to cure such default.

(f) Wherever  the consent or approval of  Sublessor  is requested by  Sublessee,
Sublessor may withhold same without liability to Sublessee and without affecting
Sublessee's  obligations  hereunder  only if Sublessor  requests  same under the
Prime Lease and does not receive such consent or approval from the Prime Lessor.

(g)      Sublessor represents and agrees:

         (1) That the  Prime  Lease is in full  force and  effect,  has not been
amended,  modified or  terminated,  all  obligations  of Landlord and  Sublessor
thereunder have been satisfied,  Sublessor is not in default thereunder,  and in
no event with the passage of time will constitute a default.

         (2) That  Sublessor has full right and authority  under the Prime Lease
to enter into the within Sublease  subject to the written  approval of the Prime
Lessor and Sublessor  shall use  reasonable  efforts to obtain such consent.  If
Sublessor  does not obtain such approval and provide the  Sublessee  with a copy
thereof  within thirty (30) days after the date hereof,  this Sublease  shall be
terminable by either party by written notice to the other party. If the Lease is
terminated by either party under the provisions of this paragraph  neither party
shall have any  obligation  to the other except that  Sublessor  shall refund to
Sublessee any monies  theretofore  received from  Sublessee  hereunder  provided
Sublessee shall theretofore have fully cooperated with Sublessor in seeking such
approval.  Anything to the contrary  notwithstanding in this Sublease,  the term
hereof shall not commence in the absence of such approval.

         (3) Sublessee upon paying rent,  additional  rent and all other charges
Sublessee is responsible for and performing all of the terms on Sublessee's part
to be performed,  shall  peaceably  and quietly  enjoy the  Subleased  Premises,
subject,  nevertheless, to the terms of Prime Lease and to any superior mortgage
or other  instrument to which is Sublease or the Prime Lease is  subordinated to
in accordance with the terms of this Sublease and the Prime Lease.

         (4) That  Sublessor  shall not  terminate  the Prime Lease or otherwise
adversely and  materially  affect the Subleased  Premises  without prior written
consent of Sublessee.

(h) Sublessor and Sublessee  each shall have the right but not the obligation to
take any action  required  to be take by the other  party  hereunder  where such
action may be necessary to prevent a default  under the terms of the Prime Lease
under circumstances  wherein the other party has failed,  after proper notice to
take such  action,  and the other  party who has failed to take any such  action
required of it hereunder shall thereupon  reimburse the party taking such action
for any and all costs  thereby  incurred by it together  with  interest from the
date incurred to the date of reimbursement,  inclusive,  at a rate equal to four
points above the prime rate on short term commercial borrowings charged by Chase
Manhattan Bank N.A.  (NewYork,  New York), but in no event higher than the usury
or legal rate, if one be applicable thereto.
<PAGE>

(i)  Sublessee  agrees  to  indemnify  and  hold  Sublessor  and its  affiliated
corporations and parent corporation  harmless from any and all liability,  loss,
damage, suits, actions,  proceedings,  costs and expenses,  including reasonable
attorneys'  fees by reason of any  breach  by  Sublessee  of any of the terms or
conditions  of this  Sublease  or of the Prime  Lease or the use,  occupancy  or
operations of the Sublessee on or about the Subleased Premises.

         Sublessor  agrees to indemnify and hold  Sublessee  and its  affiliated
corporations and parent  corporation  harmless from any and all liability,  loss
damage, suits actions,  proceedings,  costs, and expenses,  including reasonable
attorneys'  fees by reason of any  breach  by  Sublessor  or any of the terms or
conditions  of this  Sublease  or of the Prime  Lease or the use,  occupancy  or
operations of the Sublessor on or about the Subleased Premises.

(j) With respect to such insurance as is required to be maintained by the Tenant
or Lessee under the Prime Lease  against  claims by others for personal  injury,
death and property  damage,  the  applicable  policies  shall name as additional
insured to the extent of Sublessee's  indemnity  obligations under the Sublease,
both the Sublessor and the Prime Lessor and any other  entities  which the Prime
Lease may require.

(k) In the event  any  provision  of the Prime  Lease  shall  conflict  with the
provisions  of  the  Sublease  as  between  the  Sublessee  and  Sublessor,  the
provisions of the Sublease shall prevail.

(l) Sublessee  acknowledges  that neither Sublessor nor anyone on its behalf has
made  representations  or promises  with  respect to the  Building or  Subleased
Premises or  otherwise  except as herein  expressly  set forth.  Nothing  herein
contained  shall be construed as warranting  that the Subleased  Premises are in
good condition or fit or suitable for any particular uses or purposes whatsoever
and the Sublessee hereby agrees that it has examined the Subleased  Premises and
is fully satisfied with the physical  condition  thereof and accepts the same in
"as is" broom-clean condition (after removal of such personal property and trade
fixtures and  equipment  of Sublessor as Sublessor  may elect to remove prior to
the delivery of the Subleased  Premises to Sublessee  hereunder)  and subject to
latent defects not reasonably discovered through visible inspection.

(m) All notices  and demands  required  hereunder  shall be in writing,  sent by
registered  or  certified  mail,  return  receipt  requested,  or  when  sent by
overnight  delivery by a nationally  recognized  overnight  delivery  service as
follows:

                  (1)      If given to Sublessor by Sublessee:

                           Software Technology, Inc.
                           Attn:  Doug Shorter, Jim Campbell
                           4100 Lafayette Center Drive, 2nd Floor
                           Chantilly, VA  20151

                           With a copy to:

                           Exigent International, Inc.
                           Attn:  Stuart Dawley
                           1225 Evans Road
                           Melbourne, FL  32904-2314
<PAGE>

(2)      If given to Sublessee by Sublessor:

                           Raytheon Company
                           7700 Arlington Boulevard
                           Falls Church, VA  22042-2900
                           Attn:  Manager Facilities/Real Estate

                           With a copy to:

                           Raytheon Company
                           141 Spring Street
                           Lexington, MA  02421
                           Attn:  Real Estate Dept.

(3) To any subsequent address or to any other entity which either of the parties
may designate for such purpose in writing by similar notice.

(4) All notices  shall be deemed to be given when  received or tender  notice is
not accepted by receiving party.

(5)  Sublessor  and  Sublessee  each  shall  give  to the  other  a copy  of all
communications  and  notices  given by either  to the  Prime  Lessor in the same
manner and simultaneous with such notices and communications  given to the Prime
Lessor.  Sublessor and Sublessee  shall promptly give to the other a copy of all
notices received from the Prime Lessor during the term of this Sublease.

(n) Sublessee warrants and represents to Sublessor that Sublessee has dealt with
no broker  other than the Fred Ezra  Company  whose  commission  will be paid by
Sublessor,  in connection  with the  negotiation of the Sublease,  and Sublessee
agrees to  indemnify  and hold  Sublessor  harmless  from any  claims,  damages,
liability, loss, cost and expense, including reasonable attorneys' fees, arising
out of or in  connection  with any claim for  commission or brokers' or finders'
fees with respect to this transaction.
(o) Sublessor warrants and represents to Sublessee that Sublessor has dealt with
no broker in connection  with the negotiation of the Sublease other than Anthony
King of Fred Ezra Company,  and Sublessor agrees to indemnify and hold Sublessee
harmless from any claims, damages,  liability, loss, cost and expense, including
reasonable  attorney's fees,  arising out of or in connection with any claim for
commission or brokers' or finders' fees with respect to this transaction  except
for any fee due the Fred Ezra Company.
<PAGE>

(p) In the event Sublessor shall default in the payment of any rental obligation
under the Prime Lease and such default is  continuing,  and the Sublessee is not
in default hereunder, Sublessee shall have the right, but not the obligation, to
cure such default forth-eight (48) hours after it gives Sublessor written notice
thereof.  If  Sublessee  cures such  default,  Sublessee  shall be  entitled  to
reimbursement  from  Sublessor for all costs  including  attorney or consultants
fees of curing such default.  In the event that the Lease is terminated due to a
default by  Sublessor,  then  Sublessee  shall be entitled to seek all  remedies
available at law and equity,  provided,  however,  that  Sublessee  shall not be
entitle  to receive  from  Sublessor  any  special or  punitive  damages  due to
Sublessor's  default and the  subsequent  termination  of the Prime Lease unless
such  punitive  damages  are  due  to  Sublessor's   gross  neglect  or  willful
misconduct.

(q) If Sublessor shall default in the performance of any of its obligation under
this Sublease, and if within twenty-one days after written notice from Sublessee
to Sublessor  specifying such default Sublessor has not commenced  diligently to
correct the default or defaults so  specified or has not  thereafter  diligently
pursued such  correction  to  completion,  Sublessee,  in addition to all of its
other  rights and remedies at law and in equity,  shall have the right,  but not
the  obligation,  to cure such  default  forty-eight  (48) hours  after it gives
Sublessor written notice thereof.  In the event that the Lease is terminated due
to a default by Sublessor, then Sublessee shall be entitled to seek all remedies
available at law and equity.

(r) In addition to Sublessee's  rights contained in the Sublease or available in
law or equity,  in the event  Sublessee  obtains a judgement  against  Sublessor
arising  out of  Sublessor's  default  under  the Prime  Lease or the  Sublease,
Sublessee may, to the extent the judgment is not paid by Sublessor, elect to set
off the amount of the judgment,  plus interest at 12% per year, against the next
due  installments  of Rent.  Election by Sublessee to set off against Rent shall
not  constitute  an election or remedies and  Sublessee  may pursue all remedies
available at law and equity to enforce the judgment against Sublessor.

(s)      If Sublessee shall default in the performance of any of its:

(a)               monetary  obligations  hereunder,  and if such  default  shall
                  continue for ten (10) days after written notice from Sublessor
                  designating such default, or
(b)               non-monetary obligation hereunder,  and within twenty-one (21)
                  days  after  written   notice  from   Sublessor  to  Sublessee
                  specifying such default Sublessee has not commenced diligently
                  to correct the default or  defaults  so  specified  or has not
                  thereafter diligently pursued such correction to completion,

         Sublessor shall have all the rights of the Prime Lessor under the Prime
Lease and Sublessee  shall be subject to all provisions  thereof  respecting the
Tenant under the Prime Lease.  Subject to the Prime Landlord's express approval,
Sublessee  shall  have all of the  rights of the  Sublessor  as  provided  under
"Exhibit E - Special  Stipulations"  of the Prime Lease,  excepting the Right of
First  Offer  provided  for in said  Exhibit,  which  Right  of  First  Offer is
acknowledged  to have expired.  Notwithstanding  the foregoing,  Sublessor shall
only have the right to terminate  this Sublease in accordance  with the terms of
the Prime Lease if Sublessee  has  defaulted  under the terms hereof for two (2)
consecutive months.
<PAGE>

                                       USE

The subleased premises shall be used and occupied only for general office use.

                                ENTIRE AGREEMENT

This sublease contains the entire  understanding of the parties hereto and shall
supersede  all prior  agreements  which are hereby  deemed  null and void.  This
Sublease shall not be modified or amended or extended except by an instrument in
writing duly signed by the parties hereto,  such being in the case of Sublessor,
an officer thereof.







         IN WITNESS  WHEREOF,  the parties hereto have caused this Instrument to
be duly executed as of the day and year first above written.

                                                SUBLESSOR:
                                                SOFTWARE TECHNOLOGY, INC.


WITNESS:                               BY:  /s/  Larry Whitfield
                                           -------------------------------
/s/ Sally Ball                                  NAME:  Larry Whitfield
------------------------------------
                                                TITLE:   President


                                       SUBLESSEE:
                                       RAYTHEON COMPANY



                                       BY:  s/s Thomas D. Hyde
                                            ------------------------------
                                       NAME:  Thomas D. Hyde
                                              ----------------------------
                                       TITLE:  Senior Vice President and
                                               ---------------------------
                                                General Counsel


                               CONSENT BY LESSOR.

The  undersigned,  Lessor under the Prime Lease (attached at Exhibit "A" hereto)
hereby consents to the subletting of the Premises  described herein on the terms
and conditions contained in this Sublease. This consent shall apply only to this
Sublease and shall not be deemed to be a consent to any other sublease.


                                       PRIME LESSOR:
                                       MASSACHUSETTS MUTUAL LIFE
                                       INSURANCE COMPANY

                                       BY:  s/s Payne H. Midtette, III
                                            ------------------------------------
                                       NAME:  Payne H. Midtette, III
                                              ----------------------------------
                                       TITLE:  Vice President
                                               ---------------------------------