<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM JDA SOFTWARE
GROUP, INC.'S QUARTERLY REPORTS ON FORM 10-Q FOR THE QUARTERS ENDED MARCH 31,
1997, JUNE 30, 1997 AND SEPTEMBER 30, 1997 AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH STATEMENT.
</LEGEND>
<RESTATED> 
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
       
                                                                       
<PERIOD-TYPE>                   3-MOS                   6-MOS                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1997             DEC-31-1997             DEC-31-1997
<PERIOD-START>                             JAN-01-1997             JAN-01-1997             JAN-01-1997
<PERIOD-END>                               MAR-31-1997             JUN-30-1997             SEP-30-1997
<EXCHANGE-RATE>                                      1                       1                       1
<CASH>                                          30,248                  26,020                  26,096
<SECURITIES>                                         0                       0                       0
<RECEIVABLES>                                   19,225                  24,813                  30,426
<ALLOWANCES>                                   (1,131)                 (1,360)                 (1,648)
<INVENTORY>                                          0                       0                       0
<CURRENT-ASSETS>                                50,191                  52,047                  60,347
<PP&E>                                          12,665                  16,287                  18,322
<DEPRECIATION>                                 (3,993)                 (4,577)                 (5,195)
<TOTAL-ASSETS>                                  60,532                  67,199                  76,856
<CURRENT-LIABILITIES>                            8,590                  11,548                  13,879
<BONDS>                                              0                       0                       0
<PREFERRED-MANDATORY>                                0                       0                       0
<PREFERRED>                                          0                       0                       0
<COMMON>                                           130                     130                     132
<OTHER-SE>                                      51,345                  55,038                  62,565
<TOTAL-LIABILITY-AND-EQUITY>                    60,532                  67,199                  76,856
<SALES>                                              0                       0                       0
<TOTAL-REVENUES>                                16,844                  37,941                  61,616
<CGS>                                                0                       0                       0
<TOTAL-COSTS>                                    6,904                  16,230                  26,695
<OTHER-EXPENSES>                                 6,441                  14,258                  22,360
<LOSS-PROVISION>                                     7                     236                     716
<INTEREST-EXPENSE>                                 356                   (720)                 (1,042)
<INCOME-PRETAX>                                  3,855                   8,173                  13,603
<INCOME-TAX>                                     1,542                   3,270                   5,441
<INCOME-CONTINUING>                              2,313                   4,903                   8,162
<DISCONTINUED>                                       0                       0                       0
<EXTRAORDINARY>                                      0                       0                       0
<CHANGES>                                            0                       0                       0
<NET-INCOME>                                     2,313                   4,903                   8,162
<EPS-PRIMARY>                                      .18                     .38                     .63
<EPS-DILUTED>                                      .18                     .38                     .63