<ARTICLE>                5
<LEGEND>
This schedule contains summary information extracted from the audited financial
statements at December 31,1999 which are included in the Registrant's Form 10-K
and is qualified in its entirety by reference to such financial statements
</LEGEND>
<CIK>                    0001052196
<NAME>                   DSET CORPORATION
<MULTIPLIER>                                    1,000
<CURRENCY>                                U.S. DOLLAR

                      
<PERIOD-TYPE>            12-MOS
<FISCAL-YEAR-END>                         DEC-31-1999
<PERIOD-START>                            JAN-01-1999
<PERIOD-END>                              DEC-31-1999
<EXCHANGE-RATE>                                     1
<CASH>                                          3,721
<SECURITIES>                                   36,974
<RECEIVABLES>                                  20,732
<ALLOWANCES>                                     (600)
<INVENTORY>                                         0
<CURRENT-ASSETS>                               63,015
<PP&E>                                          5,566
<DEPRECIATION>                                 (2,138)
<TOTAL-ASSETS>                                 73,495
<CURRENT-LIABILITIES>                           9,389
<BONDS>                                             0
<PREFERRED-MANDATORY>                               0
<PREFERRED>                                         0
<COMMON>                                       45,636
<OTHER-SE>                                     15,887
<TOTAL-LIABILITY-AND-EQUITY>                   73,495
<SALES>                                        44,629
<TOTAL-REVENUES>                               44,629
<CGS>                                           8,886
<TOTAL-COSTS>                                  28,003
<OTHER-EXPENSES>                                    0
<LOSS-PROVISION>                                    0
<INTEREST-EXPENSE>                                179
<INCOME-PRETAX>                                 9,767
<INCOME-TAX>                                    3,250
<INCOME-CONTINUING>                             6,517
<DISCONTINUED>                                      0
<EXTRAORDINARY>                                     0
<CHANGES>                                           0
<NET-INCOME>                                    6,517
<EPS-BASIC>                                    0.63<F1>
<EPS-DILUTED>                                    0.59<F2>
<FN>
<F1>  This amount represents Basic Earnings per share
      in accordance with the requirements of Statement
      of Financial Accounting Standards No. 128 --
      'Earnings per share.'

<F2>  This amount represents Diluted Earnings per Share
      in accordance with the requirements of Statement
      of Financial Accounting Standards No. 128 --
      'Earnings per Share.'
</FN>