PROBLEM TO BE SOLVED: To avoid dividing a software component group that should be handled together when dividing a modification area of a software system.;SOLUTION: A divisible area calculation unit 8 calculates the degree of semantic connection between software components, and divides a modification area according to both the calculated degree of connection and the degree of effect of modifications among software components. The processing can divide the modification area according to the degree of semantic connection between components as well as the degree of effect of modifications among software components to avoid dividing components that should be handled together because of a close semantic relationship between the software components.;COPYRIGHT: (C)2010,JPO&INPIT
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