SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 6-K

                        REPORT OF FOREIGN PRIVATE ISSUER

                      PURSUANT TO RULE 13a-16 OR 15d-16 OF
                       THE SECURITIES EXCHANGE ACT OF 1934

                   Report on Form 6-K dated February 14, 2007

                           Commission File No. 0-28578

                             DASSAULT SYSTEMES S.A.
                           --------------------------
                              (Name of Registrant)

         9, Quai Marcel Dassault, B.P. 310, 92156 Suresnes Cedex, France
         ---------------------------------------------------------------
                    (Address of Principal Executive Offices)

Indicate by check mark whether the registrant files or will file annual reports
                     under cover of Form 20-F or Form 40-F

                        Form 20-F |X|       Form 40-F |_|

Indicate by check mark if the registrant is submitting the Form 6-K in paper as
                  permitted by Regulation S-T Rule 101(b)(1):

                           Yes | |             No |X|

Indicate by check mark if the registrant is submitting the Form 6-K in paper as
                  permitted by Regulation S-T Rule 101(b)(7):

                           Yes | |             No |X|

 Indicate by check mark whether by furnishing the information contained in this
     Form, the registrant is also thereby furnishing the information to the
Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934:

                           Yes | |             No |X|

If "Yes" is marked, indicate below the file number assigned to the registrant in
                 connection with Rule 12g3-2(b): 82-___________

                                   ENCLOSURES:

Dassault  Systemes  S.A. is  furnishing  under cover of Form 6-K a press release
dated February 14, 2007,  reporting financial results for the fourth quarter and
year ended December 31, 2006.



[DASSAULT SYSTEMES LOGO OMITTED]

           DS Achieves its 2006 Objectives and Reaches 25% PLM Market
                                Share Milestone

Paris,  France,  February  14, 2007 - Dassault  Systemes  (DS)  (Nasdaq:  DASTY;
Euronext  Paris:  #13065,  DSY.PA)  reported  financial  results  for the fourth
quarter and year ended December 31, 2006.

                          Summary Financial Highlights

     o    Financial  results well in line with objectives for the fourth quarter
          and full year

     o    Acquisitions achieved key financial targets

     o    2006 GAAP revenue of (euro)1.16 billion and GAAP EPS of (euro)1.51

     o    2006 total  non-GAAP  revenue of  (euro)1.18  billion or 27% growth in
          constant currencies and non-GAAP EPS growth of 15% to (euro)1.83

     o    Non-GAAP revenue growth of 12% in constant currencies before including
          ABAQUS and MatrixOne

Bernard  Charles,  Dassault  Systemes  President  and Chief  Executive  Officer,
commented,  "2006 was a remarkable  year for DS. We delivered  strong  financial
results growing revenue by 27% in constant  currencies and earnings per share by
15%. We  successfully  integrated two major  acquisitions  within a twelve-month
period. And we redesigned our 25-year strategic  partnership with IBM to jointly
expand the enterprise PLM offering sold by IBM and to transition to a DS-managed
PLM indirect  channel.  Thanks to everyone's  focus across DS on innovation  and
execution to serve our customers,  DS reached an important leadership milestone,
with a total PLM market share estimated at 25%.

"Our market  leadership  reflects the confidence that our customers and partners
have  placed in us and our  passion to invent new  approaches  to help them take
advantage of the 3D virtual world as a vehicle for advancing innovation,  global
collaboration and productivity.

"During 2006 we  completed  our first ten years as a public  company.  Over this
timeframe,  DS has  established a strong  performance  track record,  delivering
compound  annual growth of 18% for revenues and 15% for earnings and maintaining
a very attractive  financial model.  2006 also serves as a very solid foundation
for the coming years.  With leading brands in growing markets,  I believe we are
well-positioned  to attain our  2005-2010  goals of  doubling  both  revenue and
earnings."


                                       1


               Fourth Quarter and Full Year 2006 Financial Summary

Dassault Systemes completed the acquisition of ABAQUS, Inc. in October, 2005 and
MatrixOne Inc. in May, 2006 and has accounted for these acquisitions pursuant to
U.S. GAAP ("GAAP"). In addition to GAAP information, this press release presents
supplemental  non-GAAP financial  information which reflects certain adjustments
to our GAAP information. The supplemental non-GAAP financial information adjusts
our GAAP financial  information to exclude:  (i) deferred  revenue  adjustments,
(ii)  amortization  of  acquired  intangibles,  (iii)  stock-based  compensation
expense and (iv) one-time tax  restructuring  effects.  See Attachment A of this
press  release for an  explanation  of these  adjustments,  and tables which set
forth the most comparable GAAP financial  measures and a  reconciliation  of the
GAAP and non-GAAP financial data.

Fourth Quarter 2006 Financial Highlights:



-------------------------- --------------------------------- ---------------------------------
Fourth Quarter 2006
In millions of Euro,
except per share data                    GAAP                            Non-GAAP
-------------------------- --------------------------------- ---------------------------------
                            Q4 2006     Growth      Growth    Q4 2006     Growth      Growth
                                                    in cc*                            in cc*
-------------------------- ---------- ----------- ---------- ---------- ----------- ----------
                                                                     
Total Revenue                349.4       15%         20%       353.2       13%         18%
-------------------------- ---------- ----------- ---------- ---------- ----------- ----------
E.P.S.                       0.66        14%                   0.72         7%
-------------------------- ---------- ----------- ---------- ---------- ----------- ----------
Operating margin             29.9%                             34.3%
-------------------------- ---------- ----------- ---------- ---------- ----------- ----------


* in constant currencies

GAAP  total  revenue  increased  15% to  (euro)349.4  million  (20% in  constant
currencies)  for the 2006 fourth  quarter on a 14% increase in software  revenue
and a 21% increase in services and other revenue.

Non-GAAP  total revenue  increased 13% to  (euro)353.2  million (18% in constant
currencies)  with  non-GAAP  software  revenue  increasing  11% (17% in constant
currencies) and non-GAAP  services and other revenue rising 21% (27% in constant
currencies). CATIA and SolidWorks new seats licensed in the quarter increased 4%
to 23,280 seats.

From a regional perspective, all regions contributed to the increase in non-GAAP
revenue,  led by the Americas with 28% growth (39% in constant  currencies)  and
Asia  with  7%  growth  (19%  in  constant  currencies).   Europe  increased  7%
year-over-year, following a very strong performance in the year-ago quarter.

From a segment  perspective,  both  Product  Lifecycle  Management  ("PLM")  and
SolidWorks achieved strong growth. Specifically,  non-GAAP PLM revenue increased
12% to (euro)293.9 million (18% in constant  currencies),  and included non-GAAP
ENOVIA revenue of (euro)71.1 million.  Non-GAAP SolidWorks revenue increased 14%
to (euro)59.3 million (20% in constant currencies).

GAAP earnings per diluted  share  increased 14% to (euro)0.66 in the 2006 fourth
quarter,  on higher  GAAP  operating  income and  financial  revenue and a lower
effective tax rate.

Non-GAAP  earnings  per diluted  share  increased 7% to  (euro)0.72  in the 2006
fourth  quarter,  primarily  reflecting  higher  operating  income and financial
revenue and a lower effective tax rate.


                                       2


Full Year 2006 Financial Highlights:



-------------------------- --------------------------------- ---------------------------------
Full Year 2006                           GAAP                            Non-GAAP
In millions of Euro,
except per share data
-------------------------- ---------- ----------- ---------- ---------- ----------- ----------
                            FY 2006     Growth     Growth     FY 2006     Growth     Growth
                                                    in cc*                            in cc*
-------------------------- ---------- ----------- ---------- ---------- ----------- ----------
                                                                     
Total Revenue               1,157.8      24%         26%      1,177.5      25%         27%
-------------------------- ---------- ----------- ---------- ---------- ----------- ----------
E.P.S.                       1.51         1%                   1.83        15%
-------------------------- ---------- ----------- ---------- ---------- ----------- ----------
Operating margin             21.2%                             26.9%
-------------------------- ---------- ----------- ---------- ---------- ----------- ----------


* in constant currencies

GAAP  total  revenue  increased  24% to  (euro)1.16  billion  (26%  in  constant
currencies)  on a 23%  increase in GAAP  software  revenue and a 29% increase in
GAAP services and other revenue.

Non-GAAP  total revenue  increased  25% to  (euro)1.18  billion (27% in constant
currencies)  reflecting  a 24%  increase in non-GAAP  software  revenue  (26% in
constant  currencies) and a 29% increase in non-GAAP  services and other revenue
(31% in constant currencies).  CATIA and SolidWorks new seats licensed increased
9% to 78,684.

From a regional perspective,  2006 non-GAAP revenue increased 24% in Europe, 28%
in the Americas  (29% in constant  currencies)  and 22% in Asia (29% in constant
currencies).  As a percentage of total non-GAAP  revenue,  Europe  accounted for
47%, the Americas 31% and Asia 22%.

Bernard  Charles  commented,  "DS  2006  financial  performance  was  driven  by
broad-based strength.

     o    CATIA had a very good year,  growing  almost  twice the  estimated  6%
          growth  of  the  CAD  market,   with   strategic  wins  and  increased
          penetration of the supply chain and target  industries.  As the number
          one PLM CAD software,  we continue to see good opportunities to extend
          our  leadership.  Looking ahead,  CATIA should be a key beneficiary of
          our new go-to-market model for the PLM indirect channel.

     o    SIMULIA  grew  twice  as  fast as the  overall  simulation  market  on
          expanding  relationships with its largest customers as well as a broad
          level of interest  across a diversified  set of industries.  We expect
          our  simulation  performance in 2006 to have led to market share gains
          for DS in this segment of the PLM market.

     o    SolidWorks  delivered  a  significant  increase in  revenues.  Working
          closely  with  its  dynamic  network  of  resellers,   SolidWorks  has
          consistently  outpaced market growth and won nearly  two-thirds of its
          new business from conversion of legacy 2D seats.

     o    DELMIA  attained  important  wins  during  2006.  We believe  that the
          adoption  of  our  digital  manufacturing  solutions  by  our  largest
          customers  underlines  the potential of our solutions to enable global
          and flexible production systems.

     o    ENOVIA  finished  2006  with  the  most  comprehensive   collaborative
          offering in the PLM market,  following the acquisition of MatrixOne in
          May 2006.  We have  significantly  increased  our ability to serve our
          eleven targeted industries."

From a segment perspective, non-GAAP PLM revenue grew 26% to (euro)959.4 million
(28% in constant  currencies) on broad strength.  Non-GAAP PLM revenue  included
non-GAAP  ENOVIA revenue,  which  increased 64% (66% in constant  currencies) to
(euro)199.7 million. SolidWorks non-GAAP revenue grew 20% to (euro)218.1 million
(22% in constant currencies) and represented 19% of non-GAAP total revenue.


                                       3


GAAP  earnings per diluted  share  increased 1% to  (euro)1.51.  GAAP  operating
income decreased 2% to (euro)245.9 million.  These results largely reflected the
impact of amortization of acquired  intangibles in connection with 2005 and 2006
acquisitions.

Non-GAAP  earnings per diluted  share  increased  15% to  (euro)1.83,  on strong
growth in non-GAAP  operating income.  Specifically,  non-GAAP  operating income
increased (euro)46.3 million or 17% to (euro)316.2 million in 2006. The non-GAAP
operating  margin was 26.9% for the full year 2006,  in line with the  Company's
financial objective.

Cash flow and other financial highlights

Net operating cash flow was (euro)38.3  million and (euro)262.9  million for the
fourth  quarter  and  year  ended  December  31,  2006,  respectively.  Cash and
short-term  investments  totaled  (euro)459.2  million  and  long-term  debt was
(euro)204.3 million at December 31, 2006.

                                Business Outlook

Thibault de Tersant,  Senior  Executive  Vice  President  and CFO,  stated,  "By
achieving  all of our  objectives  for 2006,  attaining our revenue and earnings
growth objectives and meeting our profitability  goals, we have demonstrated our
ability to select the right  acquisitions  and to integrate them while achieving
double-digit core revenue growth.

"Looking to 2007, our objectives are to deliver a good level of non-GAAP revenue
and earnings growth  accompanied by a stable  operating  margin in comparison to
2006.  Specifically,  we are raising our 2007 non-GAAP constant currency revenue
growth  objective  to 12% to 13% from the range of 11% to 12%  given in  October
2006. We are initiating our 2007 non-GAAP earnings per share growth objective of
9% to 12% growth,  with  acceleration  in earnings growth as we move through the
year. And we expect a stable  non-GAAP  operating  margin of about 27% thanks to
profitability  improvements  enabling us to make PLM channel investments as well
as compensating for unfavorable changes in currency exchange rates."

The Company's  objectives are prepared and communicated only on a non-GAAP basis
and are subject to the cautionary statement set forth below.

     o    First quarter  non-GAAP total revenue  objective of about (euro)282 to
          (euro)287 million,  non-GAAP EPS of about (euro)0.31 to (euro)0.32 and
          non-GAAP operating margin of about 18% to 19%
     o    2007  non-GAAP  total  revenue   objective  of  about   (euro)1.29  to
          (euro)1.30  billion,  representing  about  12-13%  growth in  constant
          currencies
     o    2007  non-GAAP EPS of about  (euro)2.00  to  (euro)2.05,  representing
          about 9% to 12% growth
     o    2007 non-GAAP operating margin of about 27%
     o    Objectives  based upon exchange rate assumptions for the first quarter
          and full year of US$1.30 per (euro)1.00 and JPY 155 per (euro)1.00

The non-GAAP  objectives  set forth above do not take into account the following
accounting  elements:  deferred revenue  write-downs  estimated at approximately
(euro)8  million  for  2007;  stock-based   compensation  expense  estimated  at
approximately  (euro)13 million for 2007, and amortization  expense for acquired
intangibles  estimated at  approximately  (euro)11  million per  quarter.  These
estimates  do not  include  any new  stock  option or share  grants,  or any new
acquisitions in 2007.


                                       4


                Strategy, Technology, Customers and Partnerships

Dassault  Systemes  and  IBM  Expand  Strategic  Partnership,  with  IBM to Sell
Additional DS Solutions.  DS and IBM recently announced a significant  expansion
of their 25-year partnership. Under the terms of the new agreement, both IBM and
DS will  increase  the scope of their  responsibilities,  with IBM selling  DS's
expanded  portfolio  of PLM  solutions,  and DS assuming  management  of the PLM
indirect  sales channel  through a transition  expected to be completed in early
2008.

Boeing Simulates and "Manufactures" 787 Dreamliner at Industry-First  Event with
3D PLM from Dassault  Systemes.  On December 7, 2006 Boeing  completed a virtual
roll-out of its 787 Dreamliner.  This first-ever  virtual rollout was not simply
an animation of the completed airplane,  but a virtual simulation and validation
of the entire  manufacturing  process.  Dassault Systemes' PLM solutions used by
Boeing on the 787 Dreamliner include DELMIA for virtual planning and production,
CATIA  for  virtual  product  design,   and  ENOVIA  VPLM  for   enterprise-wide
collaboration.

OMRON Corp., a Leading Manufacturer of Control Equipment for Factory Automation,
Integrates  DELMIA  Automation  into its New  Generation  of Control and Network
Solutions.  DELMIA  Automation V5 enables the  optimization  and validation of a
given  manufacturing  process in a 3D virtual  environment  from control  design
processes to the shop floor  environment.  By performing  pre-validation  in 3D,
"virtual commissioning", DELMIA Automation V5 allows control departments to work
in parallel and share  information  with  mechanical and electrical  departments
earlier in the development process, optimizing engineering processes.

Conference call information

Dassault Systemes will host a teleconference call today, Wednesday, February 14,
2007 at 3:00 PM CET/2:00 PM London/9:00 AM New York. The conference call will be
available via the Internet by accessing http://www.3ds.com/corporate/investors/.
Please go to the website at least fifteen minutes prior to the call to register,
download and install any necessary  audio software.  The webcast  teleconference
will be archived for 30 days. Financial  information to be discussed in the call
will  be  available  on the  Company's  website  prior  to  commencement  of the
teleconference at  http://www.3ds.com/corporate/investors/.  Additional investor
information  can be  accessed at  http://www.3ds.com/corporate/investors/  or by
calling Dassault Systemes' Investor Relations at 33.1.40.99.69.24.

Cautionary statement regarding forward-looking statements: Statements above that
are not historical facts but express  expectations or objectives for the future,
including  but not limited to statements  regarding  our  financial  performance
objectives are forward-looking  statements (within the meaning of Section 21E of
the  Securities  Exchange  Act  of  1934,  as  amended).   Such  forward-looking
statements are based on  management's  current views and assumptions and involve
known and unknown risks and  uncertainties.  Actual results or performances  may
differ materially from those in such statements due to, among other factors: (i)
currency fluctuations, particularly the value of the U.S. dollar or Japanese yen
with  respect  to the euro;  (ii)  reduced  corporate  spending  on  information
technology  as a result of a decrease in the market  demand for our products and
services;  (iii)  difficulties  or adverse changes (a) affecting our partners or
our  relationships  with our  partners,  including our  longstanding,  strategic
partner,  IBM, and (b) arising from the current  reorganization of our PLM sales
channels; (iv) new product developments and technological changes; (v) errors or
defects in our  products;  (vi) growth in market share by our  competitors;  and
(vii) the  realization  of any risks related to the  integration of MatrixOne or
any other newly  acquired  company  and  internal  reorganizations.  Unfavorable
changes in any of the above or other  factors  described  in the  Company's  SEC
reports, including the Form 20-F for the year ended December 31, 2005, which was
filed with the SEC on June 30,  2006,  could  materially  affect  the  Company's
financial position or results of operations.

                                       ###


                                       5


About Dassault Systemes

As a world  leader  in 3D and  Product  Lifecycle  Management  (PLM)  solutions,
Dassault Systemes brings value to more than 90,000 customers in 80 countries.  A
pioneer in the 3D software  market since 1981,  Dassault  Systemes  develops and
markets PLM application  software and services that support industrial processes
and provide a 3D vision of the entire  lifecycle of products from  conception to
maintenance. The Dassault Systemes portfolio consists of CATIA for designing the
virtual  product -  SolidWorks  for 3D  mechanical  design - DELMIA for  virtual
production  - SIMULIA  for virtual  testing and ENOVIA for global  collaborative
lifecycle  management,  including  ENOVIA  VPLM,  ENOVIA  MatrixOne  and  ENOVIA
SmarTeam.  Dassault  Systemes is listed on the Nasdaq (DASTY) and Euronext Paris
(#13065,    DSY.PA)   stock   exchanges.    For   more    information,    visit:
http://www.3ds.com

CATIA,  DELMIA,  ENOVIA,  SIMULIA and SolidWorks  are  registered  trademarks of
Dassault  Systemes or its  subsidiaries  in the US and/or other  countries.  All
other  companies and products  mentioned  herein may be the  trademarks of their
respective owners.

(Tables to follow)

CONTACTS:

Dassault Systemes:                                 Financial Dynamics:
Valerie Agathon/Geraldine Nithart-Riva             Harriet Keen/Haya Chelhot
33.1.40.99.69.24                                   44.20.7831.3113
                                                   Pierre Mas/Carole Richon
                                                   Florence de Montmarin
                                                   33.1.47.03.68.10


                                       6


                                DASSAULT SYSTEMES
                  CONSOLIDATED STATEMENTS OF INCOME (U.S. GAAP)
                  (in millions of Euro, except per share data)



-------------------------------------- -------------------------------- --------------------------------
                                             Three months ended              Twelve months ended
                                       -------------------------------- --------------------------------
                                        December 31,       December      December 31,       December
                                            2006           31, 2005          2006           31, 2005
-------------------------------------- ---------------- --------------- ---------------- ---------------
                                                                             
  New licenses revenue                       134.4           134.2            432.3            375.6
  Recurring licenses and product             152.2           118.0            530.8            408.0
  development revenue
                                       ---------------- --------------- ---------------- ---------------
  Software revenue                           286.6           252.2            963.1            783.6
  Services and other revenue                  62.8            52.0            194.7            150.9
                                       ---------------- --------------- ---------------- ---------------
  Total Revenue                        (euro)349.4     (euro)304.2    (euro)1,157.8      (euro)934.5

  Cost of software revenue                    13.4             8.3             49.6             26.8
  Cost of services and other revenue          39.3            33.0            143.7            115.3
  Research and development                    75.1            70.1            299.9            250.0
  Marketing and sales                         84.3            66.5            296.0            223.0
  General and administrative                  24.4            16.9             83.7             58.6
  Amortization of acquired                     8.6             8.7             39.0              9.8
  intangibles
                                       ---------------- --------------- ---------------- ---------------
  Total Operating Expenses             (euro)245.1     (euro)203.5      (euro)911.9      (euro)683.5
                                       ================ =============== ================ ===============
  Operating Income                     (euro)104.3     (euro)100.7      (euro)245.9      (euro)251.0
  Financial revenue and other, net             5.5             2.6              4.7             15.3
                                       ---------------- --------------- ---------------- ---------------
  Income before income taxes                 109.8           103.3            250.6            266.3
  Income tax expense                         (31.6)          (34.3)           (70.8)           (90.8)
                                       ---------------- --------------- ---------------- ---------------
  Net Income                            (euro)78.2      (euro)69.0      (euro)179.8      (euro)175.5
                                       ================ =============== ================ ===============
  Basic net income per share            (euro)0.68      (euro)0.60       (euro)1.56       (euro)1.54
                                       ================ =============== ================ ===============
  Diluted net income per share          (euro)0.66      (euro)0.58       (euro)1.51       (euro)1.49
                                       ================ =============== ================ ===============
  Basic weighted average shares              115.5           114.6            115.2            114.0
  outstanding (in millions)
                                       ================ =============== ================ ===============
  Diluted weighted average shares            119.0           119.2            119.1            117.6
  outstanding (in millions)
-------------------------------------- ---------------- --------------- ---------------- ---------------


                                       7


                                DASSAULT SYSTEMES
                CONDENSED CONSOLIDATED BALANCE SHEETS (U.S. GAAP)

                              (in millions of Euro)



-------------------------------------------------- --------------------- ---------------------
                                                    December 31, 2006     December 31, 2005
-------------------------------------------------- --------------------- ---------------------
                                                                   
   ASSETS
Cash and short-term investments                                 459.2              379.9
Accounts receivable, net                                        303.6              287.8
Other assets                                                  1,091.8              745.6
                                                   --------------------- ---------------------
   Total assets                                        (euro) 1,854.6     (euro) 1,413.3
-------------------------------------------------- --------------------- ---------------------
   LIABILITIES
   AND SHAREHOLDERS' EQUITY
Long-term debt                                                  204.3                1.5
Other liabilities                                               542.0              425.7
Shareholders' equity                                          1,108.3              986.1
                                                   --------------------- ---------------------
   Total liabilities and shareholders' equity          (euro) 1,854.6     (euro) 1,413.3
-------------------------------------------------- --------------------- ---------------------



                                       8


                                     DASSAULT SYSTEMES
                         CONDENSED CASH FLOW STATEMENT (U.S. GAAP)
                                   (in millions of Euro)



------------------------------ ---------------------------------------- ----------------------------------------
                                         Three months ended                      Twelve months ended
                               -------------- ------------- ----------- -------------- ------------- -----------
                               December 31,     December    Variation   December 31,     December     Variation
                                   2006         31, 2005                    2006         31, 2005
------------------------------ -------------- ------------- ----------- -------------- ------------- -----------
                                                                                   
Net income                            78.2            69.0          9.2         179.8         175.5          4.3
Changes in working capital
and  non-cash P&L items              (39.9)          (31.9)        (8.0)         83.1          21.2         61.9
                               -------------- ------------- ----------- -------------- ------------- -----------
Net Cash provided by
operating activities            (euro)38.3      (euro)37.1    (euro)1.2   (euro)262.9   (euro)196.7   (euro)66.2

Acquisition and sale of
assets                                (6.7)            0.2         (6.9)        (25.9)        (22.0)        (3.9)
Acquisitions net of cash
acquired                               0.2          (305.0)       305.2        (260.9)       (329.4)        68.5
Loan and other                         0.1            (0.4)         0.5           1.9          (2.3)         4.2
                               -------------- ------------- ----------- -------------- ------------- -----------
Net Cash provided by (used
in) investing activities        (euro)(6.4)   (euro)(305.2) (euro)298.8  (euro)(284.9) (euro)(353.7)  (euro)68.8

Proceeds from long-term                0.0             0.0          0.0         200.0           0.0        200.0
borrowings
Share repurchase and
proceeds from stock option
exercise, net                        (19.6)           (3.0)       (16.6)        (25.2)          0.1        (25.3)
Payments on capital lease
obligations                           (0.4)           (1.9)         1.5          (1.7)         (1.9)         0.2
Cash dividends paid                    0.0             0.0          0.0         (48.2)        (43.1)        (5.1)
                               -------------- ------------- ----------- -------------- ------------- -----------
Net Cash provided by (used
in) financing activities       (euro)(20.0)     (euro)(4.9) (euro)(15.1)  (euro)124.9   (euro)(44.9) (euro)169.8
(1)

Effect of exchange rate
changes on treasury (2)         (euro)(8.0)      (euro)1.5   (euro)(9.5)  (euro)(23.6)   (euro)29.0  (euro)(52.6)

                               ============== ============= =========== ============== ============= ==========
Increase (Decrease) in
treasury 2)                      (euro)3.9    (euro)(271.5) (euro)275.4    (euro)79.3  (euro)(172.9) (euro)252.2
------------------------------ -------------- ------------- ----------- -------------- ------------- ----------

------------------------------ -------------- ------------- ----------- -------------- ------------- ----------
Treasury (2)
at beginning of period         (euro)455.3     (euro)651.4                (euro)379.9   (euro)552.8
Treasury (2)
 at end of period              (euro)459.2     (euro)379.9                (euro)459.2   (euro)379.9
------------------------------ -------------- ------------- ----------- -------------- ------------- ----------


(1)     Excluding changes in short-term investments.
(2)     Treasury includes cash, cash equivalents and short-term investments.


                                       9


                                  Attachment A
                   Supplemental Non-GAAP Financial Information

Readers are cautioned that the supplemental  non-GAAP  information  presented in
this press  release is subject to inherent  limitations.  It is not based on any
comprehensive set of accounting rules or principles and should not be considered
as a substitute  for U.S. GAAP  measurements.  Also, our  supplemental  non-GAAP
financial  information  may  not be  comparable  to  similarly  titled  non-GAAP
measures used by other companies.  Further  specific  limitations for individual
non-GAAP measures are set forth below. To compensate for these limitations,  the
supplemental non-GAAP financial information should be read not in isolation, but
only in  conjunction  with our  consolidated  financial  statements  prepared in
accordance with U.S. GAAP.

In evaluating and  communicating  our results of  operations,  we supplement our
financial  results reported on a GAAP basis with additional  non-GAAP  financial
data, including non-GAAP revenue, operating income, operating margin, net income
and diluted  earnings per share. As further  explained  below,  the supplemental
non-GAAP  financial  information  excludes  certain income  statement  elements:
deferred revenue adjustments,  amortization of acquired intangibles (which arise
from our  acquisitions of companies and certain  technology  related  intangible
assets),   stock-based  compensation  expense  and  one-time  tax  restructuring
effects.  For this reason,  and subject to the  limitations  set forth above and
below,  we believe that the  supplemental  non-GAAP  data  provides a consistent
basis   for   period-to-period   comparisons   which  can   improve   investors'
understanding of our financial performance.

Our management uses the supplemental  non-GAAP financial  information,  together
with our GAAP financial information,  to evaluate our operating performance,  to
make  operating  decisions and to plan and set  objectives  for future  periods.
Compensation  of our  executives  is  based  in part on the  performance  of our
business  measured with the  supplemental  non-GAAP  financial  information.  We
believe that the supplemental non-GAAP data also provides meaningful information
to investors  and  financial  analysts who use them for  comparing our operating
performance to our historical trends and to other companies in our industry,  as
well as for valuation purposes.

The  supplemental  non-GAAP  financial  information  adjusts our GAAP  financial
information to exclude:

     o    Deferred revenue  adjustment:  Under U.S. GAAP, deferred revenue of an
          acquired  company  must be  adjusted by writing it down to account for
          the fair value of customer support  obligations  assumed under support
          contracts  acquired through the acquisition.  As a result, in the case
          of a typical  one-year  contract,  our GAAP  revenues for the one-year
          period  subsequent to an acquisition do not reflect the full amount of
          revenue on assumed  contracts  that would have otherwise been recorded
          by the acquired entity.

          In our supplemental non-GAAP financial  information,  we have excluded
          this write-down to the carrying value of the deferred revenue,  and we
          reflect  instead the full amount of such revenue.  We believe that the
          non-GAAP  measure  of revenue is useful to  investors  and  management
          because it reflects a level of revenue and  operational  results  that
          corresponds to the combined business activities of DS and the acquired
          company. In addition,  the non-GAAP financial  information  provides a
          consistent basis for comparing our future operating performance,  when
          no further  adjustments  to  deferred  revenue are  required,  against
          recent results.

          However,   by  excluding   the  deferred   revenue   adjustment,   the
          supplemental non-GAAP financial information reflects the total revenue
          that  would  have been  recorded  by the  acquired  entity but may not
          reflect  the  total  cost  associated  with  generating  the  non-GAAP
          revenue,  since  such cost may have  been  partially  incurred  by the
          acquired company prior to the acquisition.

     o    Amortization  of acquired  intangibles:  Under U.S.  GAAP, the cost of
          acquired intangible assets,  whether acquired through  acquisitions of
          companies  or  of  technology  or  other  intangible  assets  must  be
          recognized  according  to the assets'  fair value and  amortized  over
          their estimated useful life.


                                       10


          In our supplemental non-GAAP financial  information,  we have excluded
          the amortization  expense related to acquired  intangibles in order to
          provide a consistent basis for comparing our historical  results.  For
          technology  and other  intangible  assets we  develop  internally,  we
          typically expense costs in the period in which they are incurred.  For
          example,   because  we  typically  incur  most  of  our  research  and
          development  costs  prior  to  reaching  technical  feasibility,   our
          research and development  costs are normally expensed in the period in
          which they are incurred. By excluding the amortization expense related
          to  acquired   intangibles,   the  supplemental   non-GAAP   financial
          information provides a uniform approach for evaluating the development
          of all  our  technology,  whether  developed  internally  or  acquired
          externally.  As a result,  we believe that the  supplemental  non-GAAP
          financial  information  offers  investors a useful basis for comparing
          our historical results.

          However,  the acquired  intangible assets whose amortization costs are
          excluded  contributed to revenue earned during the period,  and it may
          not have been  possible to earn such revenue  without such assets.  In
          addition,  the  amortization  of acquired  intangibles  is a recurring
          expense until their total cost has been amortized.

     o    Stock-based  compensation expense: Under U.S. GAAP, we are required to
          recognize  in  our  income  statement  all  share-based   payments  to
          employees,  including grants of employee stock options, based on their
          fair  values  over the period  that an  employee  provides  service in
          exchange  for the award.  This  requirement,  which is set forth under
          SFAS 123(R), became effective for us as of January 1, 2006.

          In our supplemental non-GAAP financial  information,  we have excluded
          this expense to help investors compare our 2006 financial  information
          with financial  information for periods prior to January 1, 2006, when
          stock-based compensation costs were not expensed. In addition, because
          financial  analysts and investors  were using a valuation  model which
          did not take into  account our  stock-based  compensation  expense for
          prior periods,  the exclusion of stock-based  compensation  expense in
          our supplemental  non-GAAP financial information helps them ensure the
          consistency of their valuation metrics.  Our management also considers
          this non-GAAP  information  when reviewing our operating  performance,
          since  stock-based  compensation  costs can  fluctuate  due to factors
          other  than  the  level  of  our   business   activity  or   operating
          performance.

          However,   stock-based  compensation  is  one  component  of  employee
          compensation.  By  excluding  stock-based  compensation  expense,  the
          supplemental  non-GAAP financial information does not reflect our full
          cost  of   attracting,   motivating   and  retaining  our   personnel.
          Stock-based compensation expense is a recurring expense.

     o    One-time tax restructuring effects: Our U.S. GAAP financial statements
          reflect the impact of a tax  restructuring  effected  during the third
          and fourth quarters of 2006 in the U.S.

          In our supplemental non-GAAP financial  information,  we have excluded
          the one-time impact attributable to this tax restructuring  because of
          its unusual nature in both qualitative and  quantitative  terms. We do
          not expect such tax effects to occur as part of our normal business on
          a regular  basis.  As a  result,  we  believe  that by  excluding  the
          one-time effects of the tax restructuring,  our supplemental  non-GAAP
          financial information helps investors understand the current trends in
          our operating  performance.  We also believe that the exclusion of the
          one-time tax  restructuring  effects  facilitates  a comparison of our
          effective rate of income tax between different periods.

          However, the one-time tax restructuring effects are a component of our
          income tax expense for the period during which the restructuring  took
          place. By excluding these effects, the supplemental non-GAAP financial
          information overstates our income tax expense for the relevant period.

The following  tables set forth our  supplemental  non-GAAP  revenue,  operating
income,  operating  margin,  net income and diluted  earnings  per share,  which
exclude  the effect of  adjusting  the  carrying  value of  acquired  companies'
deferred  revenue,  the expenses  for the  amortization  of acquired  intangible
assets,  stock-based  compensation  and one-time tax  restructuring  effects (as
explained  above).  The tables also set forth the most comparable GAAP financial
measure and a reconciliation of the GAAP and non-GAAP information.

                                       11


                                DASSAULT SYSTEMES
                   SUPPLEMENTAL NON-GAAP FINANCIAL INFORMATION
                        US GAAP - NON-GAAP RECONCILIATION
                  (in millions of Euro, except per share data)



----------------------------------------------------------------------------------------------------------------------------------
                                                        Three months ended December 31,                             Variation
                             -----------------------------------------------------------------------------------------------------
                               2006 GAAP      Adjustment     2006         2005         Adjustment     2005                   Non-
                                                 (1)       Non-GAAP       GAAP             (1)      Non-GAAP       GAAP     GAAP(2)
----------------------------------------------------------------------------------------------------------------------------------

                                                                                                       
Total Revenue                 (euro)349.4            3.8 (euro)353.2   (euro)304.2            9.1 (euro)313.3        15%        13%

Total Revenue breakdown
by activity
Software revenue                    286.6            3.8       290.4         252.2            9.1       261.3        14%        11%
Services and other
revenue                              62.8                                     52.0                                   21%

Total Revenue
  breakdown by segment
PLM revenue                         292.2            1.7       293.9         253.2            8.2       261.4        15%        12%
  of which ENOVIA revenue            69.3            1.8        71.1          47.1                                   47%        51%
SolidWorks revenue                   57.2            2.1        59.3          51.0            0.9        51.9        12%        14%

Total Revenue breakdown by
  geography
Americas revenue                    108.3            1.8       110.1          82.4            3.3        85.7        31%        28%
Europe revenue                      170.9            1.4       172.3         157.8            3.6       161.4         8%         7%
Asia revenue                         70.2            0.6        70.8          64.0            2.2        66.2        10%         7%
----------------------------------------------------------------------------------------------------------------------------------

Total Operating Expenses      (euro)245.1          (13.0)(euro)232.1   (euro)203.5           (8.7)(euro)194.8        20%        19%
Stock-based compensation
  expense                             4.4           (4.4)          -             -                                   n/a        n/a
Amortization of acquired
  intangibles                         8.6           (8.6)          -           8.7           (8.7)          -        n/a        n/a
----------------------------------------------------------------------------------------------------------------------------------

Operating Income              (euro)104.3           16.8 (euro)121.1   (euro)100.7           17.8 (euro)118.5         4%         2%
Operating Margin                     29.9%                      34.3%         33.1%                      37.8%
Income before Income Taxes          109.8           16.8       126.6         103.3           17.8       121.1         6%         5%
Income tax expense                  (31.6)          (9.3)      (40.9)        (34.3)          (6.8)      (41.1)       n/a        n/a
Income tax effect of
  adjustments above                   4.6           (4.6)          -           6.8           (6.8)          -        n/a        n/a
One-time tax restructuring
  effects                             4.7           (4.7)          -             -                                   n/a        n/a
Net Income                     (euro)78.2            7.5  (euro)85.7    (euro)69.0            11.0 (euro)80.0         13%        7%
Diluted Net Income Per
  Share (3)                    (euro)0.66           0.06  (euro)0.72    (euro)0.58            0.09 (euro)0.67         14%        7%
----------------------------------------------------------------------------------------------------------------------------------


     (1) In the reconciliation  schedule above, (i) all non-GAAP  adjustments to
     GAAP revenue data reflect the exclusion of the deferred revenue adjustment;
     (ii)  non-GAAP  adjustments  to GAAP  operating  expenses  data reflect the
     exclusion  of the  amortization  of  acquired  intangibles  or  stock-based
     compensation  expense (as  detailed  below),  as  indicated;  and (iii) all
     non-GAAP  adjustments  to GAAP income data reflect the  combined  effect of
     these non-GAAP  adjustments,  plus,  with respect to net income and diluted
     net income per share, the exclusion of one-time tax restructuring effects.

 -----------------------------------------------------------------------------
                                         Three months ended December 31,
 -----------------------------------------------------------------------------
                                     2006 GAAP  Adjustment   2006     2005 GAAP
                                                           Non-GAAP
 -----------------------------------------------------------------------------
 Cost of services and other revenue     39.3      (0.2)      39.1       33.0
 Research and development               75.1      (2.5)      72.6       70.1
 Marketing and sales                    84.3      (0.9)      83.4       66.5
 General and administrative             24.4      (0.8)      23.6       16.9
 Total stock-based compensation                   (4.4)
      expense
 -----------------------------------------------------------------------------

     (2) The non-GAAP  percentage increase (decrease) compares non-GAAP measures
     for the two different periods.  In the event there is a non-GAAP adjustment
     to the relevant measure for only one of the periods under  comparison,  the
     non-GAAP increase  (decrease) compares the non-GAAP measure to the relevant
     GAAP measure.

     (3) Based on a weighted  average 119.0 million  diluted  shares for Q4/2006
     and 119.2 million diluted shares for Q4/2005.


                                       12


                                DASSAULT SYSTEMES
              SUPPLEMENTAL SELECTED NON- GAAP FINANCIAL INFORMATION
                        US GAAP - NON-GAAP RECONCILIATION
                  (in millions of Euro, except per share data)




----------------------------------------------------------------------------------------------------------------------------------
                                                        Three months ended December 31,                             Variation
                             -----------------------------------------------------------------------------------------------------
                               2006 GAAP      Adjustment     2006         2005         Adjustment     2005                   Non-
                                                 (1)       Non-GAAP       GAAP             (1)      Non-GAAP       GAAP     GAAP(2)
----------------------------------------------------------------------------------------------------------------------------------
                                                                                                       
Total Revenue               (euro)1,157.8         19.7 (euro)1,177.5   (euro)934.5            9.1 (euro)943.6        24%        25%

Total Revenue breakdown by
  activity
Software revenue                    963.1         19.7         982.8         783.6            9.1       792.7        23%        24%
Services and other revenue          194.7                                    150.9                                   29%

Total Revenue breakdown by
  segment
PLM revenue                         943.3         16.1         959.4         753.6            8.2       761.8        25%        26%
of which ENOVIA revenue             190.4          9.3         199.7         121.9                                   56%        64%
SolidWorks revenue                  214.5          3.6         218.1         180.9            0.9       181.8        19%        20%

Total Revenue breakdown by
  geography
Americas revenue                    356.0         10.5         366.5         283.0            3.3       286.3        26%        28%
Europe revenue                      541.9          6.4         548.3         438.2            3.6       441.8        24%        24%
Asia revenue                        259.9          2.8         262.7         213.3            2.2       215.5        22%        22%
----------------------------------------------------------------------------------------------------------------------------------

Total Operating Expenses      (euro)911.9        (50.6)  (euro)861.3   (euro)683.5           (9.8)(euro)673.7        33%        28%
Stock-based compensation
  expense                            11.6        (11.6)            -             -                                   n/a        n/a
Amortization of acquired
  intangibles                        39.0        (39.0)            -           9.8           (9.8)          -        n/a        n/a
----------------------------------------------------------------------------------------------------------------------------------

Operating Income              (euro)245.9         70.3   (euro)316.2   (euro)251.0           18.9 (euro)269.9        (2%)       17%
Operating Margin                     21.2%                      26.9%         26.9%                      28.6%
Income before Income Taxes    (euro)250.6         70.3   (euro)320.9   (euro)266.3           18.9 (euro)285.2        (6%)       13%
Income tax expense                  (70.8)       (32.6)       (103.4)        (90.8)          (7.2)      (98.0)       n/a        n/a
Income tax effect of
  adjustments above                  21.1        (21.1)            -           7.2           (7.2)          -        n/a        n/a
One-time tax restructuring
  effects                            11.5        (11.5)            -             -                                   n/a        n/a
Net Income                    (euro)179.8         37.7   (euro)217.5   (euro)175.5           11.7 (euro)187.2         2%        16%
Diluted Net Income Per
  Share(3)                     (euro)1.51         0.32    (euro)1.83    (euro)1.49           0.10  (euro)1.59         1%        15%
----------------------------------------------------------------------------------------------------------------------------------


     (1) In the reconciliation  schedule above, (i) all non-GAAP  adjustments to
     GAAP revenue data reflect the exclusion of the deferred revenue adjustment;
     (ii)  non-GAAP  adjustments  to GAAP  operating  expenses  data reflect the
     exclusion  of the  amortization  of  acquired  intangibles  or  stock-based
     compensation  expense (as  detailed  below),  as  indicated;  and (iii) all
     non-GAAP  adjustments  to GAAP income data reflect the  combined  effect of
     these non-GAAP adjustments, plus with respect to net income and diluted net
     income per share, the exclusion of one-time tax restructuring effects.

-------------------------------------------------------------------------------
                                         Three months ended December 31,
-------------------------------------------------------------------------------
                                     2006 GAAP  Adjustment   2006     2005 GAAP
                                                           Non-GAAP
-------------------------------------------------------------------------------
Cost of services and other revenue     143.7     (0.4)      143.3      115.3
Research and development               299.9     (6.8)      293.1      250.0
Marketing and sales                    296.0     (2.5)      293.5      223.0
General and administrative             83.7      (1.9)      81.8       58.6
Total stock-based compensation                  (11.6)
     expense
-------------------------------------------------------------------------------

     (2) The non-GAAP  percentage increase (decrease) compares non-GAAP measures
     for the two different periods.  In the event there is a non-GAAP adjustment
     to the relevant measure for only one of the periods under  comparison,  the
     non-GAAP increase  (decrease) compares the non-GAAP measure to the relevant
     GAAP measure.

     (3) Based on a weighted  average 119.1 million  diluted  shares for FY 2006
     and 117.6 million diluted shares for FY 2005.


                                       13


                                DASSAULT SYSTEMES
                              NON-GAAP KEY FIGURES
   (in millions of Euro, except per share data, headcount and exchange rates.)

Non-GAAP  key figures  exclude the effects of adjusting  the  carrying  value of
acquired  companies'  deferred  revenue,  amortization  of  acquired  intangible
assets, stock-based compensation expense and one-time tax restructuring effects.

Comparable U.S. GAAP financial information, and a reconciliation of the GAAP and
non-GAAP measures, are set forth in the preceding tables in this Attachment A.



---------------------------------------------------------------------------------------------------------------------
                                         Three months ended                          Twelve months ended
                             ----------------------------------------------------------------------------------------
                              December 31,     December 31,   Variation    December 31,      December     Variation
                                  2006             2005                        2006          31, 2005
---------------------------------------------------------------------------------------------------------------------
                                                                                            
Non-GAAP Revenue             (euro) 353.2     (euro)313.3         13%    (euro)1,177.5   (euro)943.6          25%

Non-GAAP Revenue breakdown
by activity
Software Revenue                    290.4           261.3         11%            982.8         792.7          24%
Services and other Revenue           62.8            52.0         21%            194.7         150.9          29%

Non-GAAP Revenue breakdown
by segment
PLM revenue                         293.9           261.4         12%            959.4         761.8          26%
  of which ENOVIA revenue            71.1            47.1         51%            199.7         121.9          64%
SolidWorks revenue                   59.3            51.9         14%            218.1         181.8          20%

Non-GAAP Revenue breakdown
by geography
Americas                            110.1            85.7         28%            366.5         286.3          28%
Europe                              172.3           161.4          7%            548.3         441.8          24%
Asia                                 70.8            66.2          7%            262.7         215.5          22%
---------------------------------------------------------------------------------------------------------------------

Non-GAAP Operating Income           121.1           118.5          2%            316.2         269.9          17%
Non-GAAP Operating Margin           34.3%           37.8%                        26.9%         28.6%
Non-GAAP Net Income                  85.7            80.0          7%            217.5         187.2          16%
Non-GAAP Diluted Net                 0.72            0.67          7%             1.83          1.59          15%
Income Per Share
---------------------------------------------------------------------------------------------------------------------

Closing headcount                   6,840           5,693         20%
---------------------------------------------------------------------------------------------------------------------

Average Rate USD per Euro            1.29            1.19          9%             1.26          1.24           1%
Average Rate JPY per Euro           151.9           139.4          9%            146.1         136.9           7%
---------------------------------------------------------------------------------------------------------------------



                                       14


                                   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, thereunto duly authorized.

                                        DASSAULT SYSTEMES S.A.

Date:  February 14, 2007                By:     /s/ Thibault de Tersant
                                                --------------------------------
                                        Name:   Thibault de Tersant
                                        Title:  Executive Vice President,
                                                Finance and Administration