<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
COMPANY'S CONSOLIDATED BALANCE SHEET AS OF APRIL 30, 2000, AND CONSOLIDATED
STATEMENT OF OPERATION FOR THE YEAR ENDED APRIL 30, 2000, AND IS QUALIFIED
IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> APR-30-2000
<PERIOD-START> MAY-01-1999
<PERIOD-END> APR-30-2000
<CASH> 7,525
<SECURITIES> 3,669
<RECEIVABLES> 7,070
<ALLOWANCES> (1,757)
<INVENTORY> 0
<CURRENT-ASSETS> 17,341
<PP&E> 6,356
<DEPRECIATION> (5,323)
<TOTAL-ASSETS> 21,792
<CURRENT-LIABILITIES> 11,506
<BONDS> 0
0
0
<COMMON> 58,281
<OTHER-SE> (47,995)
<TOTAL-LIABILITY-AND-EQUITY> 21,792
<SALES> 20,425
<TOTAL-REVENUES> 20,425
<CGS> 5,393
<TOTAL-COSTS> 28,021
<OTHER-EXPENSES> 61
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 118
<INCOME-PRETAX> (6,907)
<INCOME-TAX> 192
<INCOME-CONTINUING> (7,099)
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> (7,099)
<EPS-BASIC> (0.39)
<EPS-DILUTED> (0.39)
</TABLE>