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Display method in software development support system

  • US 5,191,646 A
  • Filed: 09/25/1991
  • Issued: 03/02/1993
  • Est. Priority Date: 11/20/1986
  • Status: Expired due to Fees
First Claim
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1. A display method for use in a software development support system provided with an information processing device, the display method comprising the steps of:

  • analyzing a software program before change by ascertaining a before change tree structure indicative of a relationship among statement elements of the software program before a change in which relationship the statement elements hierarchically branch from a more rootward branch element toward more remote branch elements, and analyzing the software program after change by ascertaining an after change tree structure indicative of a relationship among the statement elements of the software program after said change;

    comprising the before change and the after change tree structures progressively from the rootward most branch elements toward the more remote branch elements to form a union set tree structure indicative of software elements common to both the before change and the after change tree structures, the software elements unique to the before change tree structure and the software elements unique to the after change tree structure;

    appending change identification information to the union set tree structure, the change identification information reflective of differences between at least a one of said software elements common to both the before change and the after change tree structures, the software elements unique to the before change tree structure and the software elements unique to the after change tree structure; and

    producing at least a portion of said union set tree structure in a graphic display.

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