<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM COMPANY'S
QUARTERLY REPORT 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> SEP-30-2000
<PERIOD-START> OCT-01-1999
<PERIOD-END> JUN-30-2000
<CASH> 18,972
<SECURITIES> 16,288
<RECEIVABLES> 11,574
<ALLOWANCES> 1,128
<INVENTORY> 42
<CURRENT-ASSETS> 48,044
<PP&E> 12,828
<DEPRECIATION> 8,403
<TOTAL-ASSETS> 64,985
<CURRENT-LIABILITIES> 18,225
<BONDS> 0
0
0
<COMMON> 10
<OTHER-SE> 46,750
<TOTAL-LIABILITY-AND-EQUITY> 64,985
<SALES> 39,719
<TOTAL-REVENUES> 39,719
<CGS> 7,357
<TOTAL-COSTS> 7,357
<OTHER-EXPENSES> 33,554
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 9
<INCOME-PRETAX> 50
<INCOME-TAX> 403
<INCOME-CONTINUING> (353)
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> (353)
<EPS-BASIC> (0.03)
<EPS-DILUTED> (0.03)
</TABLE>