| QUARTERLY RESULTS OF OPERATIONS 
 
 The following table presents our unaudited consolidated statement of
 operations data for the eight quarters in the period ended October 31, 1999, as
 well as the percentage of our total revenues represented by each item. We have
 prepared this unaudited consolidated information on a basis consistent with our
 audited consolidated financial statements, and in the opinion of our management,
 this information reflects all normal recurring adjustments necessary for a fair
 presentation of our operating results for the quarters presented.
 
 
 21
 <PAGE>   26
 
 
 <TABLE>
 <CAPTION>
 QUARTER ENDED
 -------------------------------------------------------------------------------------
 JAN. 31,   APR. 30,   JUL. 31,   OCT. 31,   JAN. 31,   APR. 30,   JUL. 31,   OCT. 31,
 1998       1998       1998       1998       1999       1999       1999       1999
 --------   --------   --------   --------   --------   --------   --------   --------
 (IN THOUSANDS)
 <S>                                    <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>
 Revenues:
 Product-related revenues:
 License..........................  $   144    $   447    $   706    $   591    $ 1,607    $ 2,410    $ 2,615    $ 3,145
 Services and maintenance.........    1,594      1,163        944      1,271      1,296      1,950      2,359      2,999
 -------    -------    -------    -------    -------    -------    -------    -------
 Total product-related
 revenues....................    1,738      1,610      1,650      1,862      2,903      4,360      4,974      6,144
 Custom development services......    5,255      6,888      5,399      4,600      4,283      4,066      3,712      3,843
 -------    -------    -------    -------    -------    -------    -------    -------
 Total revenues.................    6,993      8,498      7,049      6,462      7,186      8,426      8,686      9,987
 -------    -------    -------    -------    -------    -------    -------    -------
 Cost of revenues:
 Licenses...........................       44         46         51         51         46         47         45        100
 Product-related services and
 maintenance......................      890        749        742        680        998      1,405      1,487      1,787
 Custom development services........    2,652        620      3,065      2,060      3,001      2,733      2,888      2,014
 -------    -------    -------    -------    -------    -------    -------    -------
 Total cost of revenues.........    3,586      1,415      3,858      2,791      4,045      4,185      4,420      3,901
 -------    -------    -------    -------    -------    -------    -------    -------
 Gross profit.........................    3,407      7,083      3,191      3,671      3,141      4,241      4,266      6,086
 Operating expenses:
 Sales and marketing................    3,098      3,211      3,456      3,915      4,758      6,541      5,736      6,574
 Research and development...........    1,933      1,950      2,047      2,269      1,997      1,828      2,547      3,269
 General and administrative.........      907        704        995        910      1,531      1,717      1,814      2,022
 Stock-based compensation...........       36         36        244        356        232        423        143      1,799
 Restructuring charge...............       --         --         --         --         --         --      2,625        402
 -------    -------    -------    -------    -------    -------    -------    -------
 Total operating expenses.......    5,974      5,901      6,742      7,450      8,518     10,509     12,865     14,066
 -------    -------    -------    -------    -------    -------    -------    -------
 Income (loss) from operations........   (2,567)     1,182     (3,551)    (3,779)    (5,377)    (6,268)    (8,599)    (7,980)
 Other expense, net...................       34        209         51         32        235         78         92        226
 -------    -------    -------    -------    -------    -------    -------    -------
 Net income (loss)....................  $(2,601)   $   973    $(3,602)   $(3,811)   $(5,612)   $(6,346)   $(8,691)   $(8,206)
 =======    =======    =======    =======    =======    =======    =======    =======
 </TABLE>
 
 
 
 <TABLE>
 <CAPTION>
 QUARTER ENDED
 -------------------------------------------------------------------------------------
 JAN. 31,   APR. 30,   JUL. 31,   OCT. 31,   JAN. 31,   APR. 30,   JUL. 31,   OCT. 31,
 1998       1998       1998       1998       1999       1999       1999       1999
 --------   --------   --------   --------   --------   --------   --------   --------
 (AS A PERCENTAGE OF TOTAL REVENUES)
 <S>                                      <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>
 Revenues:
 Product-related revenues:
 License............................     2.1%       5.3%      10.0%       9.1%      22.4%      28.6%      30.1%      31.5%
 Services and maintenance...........    22.8       13.6       13.4       19.7       18.0       23.1       27.2       30.0
 -----      -----      -----      -----      -----      -----      -----      -----
 Total product-related revenues...    24.9       18.9       23.4       28.8       40.4       51.7       57.3       61.5
 Custom development services........    75.1       81.1       76.6       71.2       59.6       48.3       42.7       38.5
 -----      -----      -----      -----      -----      -----      -----      -----
 Total revenues...................   100.0      100.0      100.0      100.0      100.0      100.0      100.0      100.0
 -----      -----      -----      -----      -----      -----      -----      -----
 Cost of revenues:
 Licenses.............................     0.6        0.5        0.8        0.8        0.6        0.6        0.5        1.0
 Product-related services and
 maintenance........................    12.8        8.8       10.5       10.5       13.9       16.8       17.1       17.9
 Custom development services..........    37.9        7.3       43.5       31.9       41.8       32.4       33.2       20.2
 -----      -----      -----      -----      -----      -----      -----      -----
 Total cost of revenues...........    51.3       16.6       54.8       43.2       56.3       49.6       50.8       39.1
 -----      -----      -----      -----      -----      -----      -----      -----
 Gross profit...........................    48.7       83.4       45.2       56.8       43.7       50.4       49.2       60.9
 Operating expenses:
 Sales and marketing..................    44.3       37.8       49.0       60.6       66.2       77.6       66.0       65.8
 Research and development.............    27.6       22.9       29.0       35.1       27.8       21.7       29.3       32.7
 General and administrative...........    13.0        8.3       14.1       14.1       21.3       20.4       20.9       20.2
 Stock-based compensation.............     0.5        0.4        3.5        5.5        3.2        5.0        1.6       18.0
 Restructuring charge.................      --         --         --         --         --         --       30.2        4.0
 -----      -----      -----      -----      -----      -----      -----      -----
 Total operating expenses.........    85.4       69.4       95.6      115.3      118.5      124.7      148.0      140.7
 -----      -----      -----      -----      -----      -----      -----      -----
 Income (loss) from operations..........   (36.7)      14.0      (50.4)     (58.5)     (74.8)     (74.3)     (98.8)     (79.8)
 Other expense, net.....................     0.5        2.5        0.7        0.5        3.3        0.9        1.1        2.3
 -----      -----      -----      -----      -----      -----      -----      -----
 Net income (loss)......................   (37.2)%     11.5%     (51.1)%    (59.0)%    (78.1)%    (75.2)%    (99.9)%    (82.1)%
 =====      =====      =====      =====      =====      =====      =====      =====
 </TABLE>
 
 
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 <PAGE>   27
 
 Our operating results have varied significantly from quarter to quarter in
 the past and may continue to fluctuate in the future. The quarterly fluctuations
 are caused by a number of factors, including demand for our products and
 services, size and timing of specific sales, level of product and price
 competition, timing and market acceptance of new product introductions and
 product enhancements by us and our competitors, the length of our sales cycle,
 personnel changes, budgeting cycles of our customers, the impact of our revenue
 recognition policies, changes in technology and changes caused by the rapidly
 evolving e-business market and the impact of year 2000 investments by us and our
 customers. Many of these factors are beyond our control. Therefore, we believe
 that results of operations for interim periods should not be relied upon as any
 indication of the results to be expected in any future period.
 
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