<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE FORM
10Q/A FOR THE PERIOD ENDED OCTOBER 31, 2000 AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 9-MOS
<FISCAL-YEAR-END> JAN-31-2001
<PERIOD-START> FEB-01-2000
<PERIOD-END> OCT-31-2000
<CASH> 14,835
<SECURITIES> 9,346
<RECEIVABLES> 11,422
<ALLOWANCES> 250
<INVENTORY> 0
<CURRENT-ASSETS> 33,882
<PP&E> 11,562
<DEPRECIATION> 5,498
<TOTAL-ASSETS> 44,421
<CURRENT-LIABILITIES> 7,928
<BONDS> 0
0
0
<COMMON> 15
<OTHER-SE> 33,768
<TOTAL-LIABILITY-AND-EQUITY> 44,421
<SALES> 23,972
<TOTAL-REVENUES> 23,972
<CGS> 13,272
<TOTAL-COSTS> 13,272
<OTHER-EXPENSES> 21,204
<LOSS-PROVISION> 310
<INTEREST-EXPENSE> 0
<INCOME-PRETAX> (9,639)
<INCOME-TAX> 938
<INCOME-CONTINUING> (10,577)
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> (10,577)
<EPS-BASIC> (0.71)
<EPS-DILUTED> (0.71)
</TABLE>