<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED FINANCIAL STATEMENTS FOR THE SIX MONTHS ENDED MAY 31, 2000 AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> NOV-30-2000
<PERIOD-START> DEC-01-1999
<PERIOD-END> MAY-31-2000
<CASH> 348,535
<SECURITIES> 208,360
<RECEIVABLES> 55,277
<ALLOWANCES> 2,946
<INVENTORY> 0
<CURRENT-ASSETS> 621,652
<PP&E> 19,682
<DEPRECIATION> 4,263
<TOTAL-ASSETS> 684,467
<CURRENT-LIABILITIES> 54,678
<BONDS> 0
0
0
<COMMON> 189
<OTHER-SE> 629,600
<TOTAL-LIABILITY-AND-EQUITY> 684,467
<SALES> 0
<TOTAL-REVENUES> 96,010<F1>
<CGS> 0
<TOTAL-COSTS> 27,115
<OTHER-EXPENSES> 46,690<F2>
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 0
<INCOME-PRETAX> (13,006)
<INCOME-TAX> 0
<INCOME-CONTINUING> (13,006)
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> (13,006)
<EPS-BASIC> (0.07)
<EPS-DILUTED> (0.07)
<FN>
<F1>ITEM CONSISTS OF TOTAL LICENSE AND TOTAL SERVICE AND MAINTENANCE REVENUE.
<F2>ITEM CONSISTS OF RESEARCH AND DEVELOPMENT EXPENSES AND AMORTIZATION OF
STOCK-BASED COMPENSATION, GOODWILL AND ACQUIRED INTANGIBLES.
</FN>
</TABLE>