ADVENT SOFTWARE INC /DE/
EX-10
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<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Exhibit 10.1<a name="Exhibit10_1_173313"></a></font></b></p>

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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Summary of Plan Terms for 2006 Executive Short-Term Incentive Plan</font></b></p>

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<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The Advent
Software 2006 Executive Short-Term Incentive Plan (&#147;the Plan&#148;) is designed to
motivate and reward the Executive Team for short-term achievement of key
bookings, revenue and operating profit milestones during the 2006 fiscal year.
A summary of the terms follows:</font></p>

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<p style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-indent:-.25in;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">&#149;</font><font size="1" style="font-size:8.5pt;">&#160;&#160;&#160;&#160;&#160; </font>The
Plan is applicable to the President and CEO and executive-level direct reports
of the CEO (the &#147;Executives&#148;)</p>

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<p style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-indent:-.25in;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">&#149;</font><font size="1" style="font-size:8.5pt;">&#160;&#160;&#160;&#160;&#160; </font>The
individual plans establish various target amounts, performance measures and
goals of the cash bonuses awarded under the Plan for each Executive.</p>

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<p style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-indent:-.25in;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">&#149;</font><font size="1" style="font-size:8.5pt;">&#160;&#160;&#160;&#160;&#160; </font>Target
amounts range from a total per individual of $54,367 to $250,100.</p>

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<p style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-indent:-.25in;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">&#149;</font><font size="1" style="font-size:8.5pt;">&#160;&#160;&#160;&#160;&#160; </font>Plan
targets are based on bookings, recognized revenue, operating profit and
individual executive performance relative to goals.</p>

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<p style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-indent:-.25in;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">&#149;</font><font size="1" style="font-size:8.5pt;">&#160;&#160;&#160;&#160;&#160; </font>The
Plan is an annual plan and is effective for the fiscal year end of 2006 and any
bonuses earned will be paid in the first quarter of 2007.</p>

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<p style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-indent:-.25in;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">&#149;</font><font size="1" style="font-size:8.5pt;">&#160;&#160;&#160;&#160;&#160; </font>The
Plan may be renewed at the election of the Company for future periods.</p>

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