Digital document management system, digital document management method, and digital document management program

  • US 20070050713A1
  • Filed: 10/18/2006
  • Published: 03/01/2007
  • Est. Priority Date: 07/20/2004
  • Status: Active Grant
First Claim
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1. A digital document management system that manages document information created in a digital form, comprising:

  • a policy information storage section that stores previously defined policy information;

    a partial identification information generation section that generates partial identification information that represents, in an identifiable manner, respective parts of the document information;

    a partial correction information generation section that generates partial correction information which is information related to a correction history of a corrected part in the case where any correction has been required for the document information;

    a management section that manages the document information, partial identification information generated by the partial identification information generation section, partial correction information generated by the partial correction information generation section, and policy information stored in the policy information storage section in an associated manner; and

    a registration document verification section that verifies the validity of the document information using the partial identification information and partial correction information associated with each other by the management section.

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