Patent Document ID: 7904808
Application ID: 11897147

Base Claim:
1. A non-transitory computer-readable recording medium on which a document management program for managing a correction history of a document is recorded, the program making a computer function as: a document store section for storing the document; a correction history table store section for storing a correction history table; a document input section for accepting input of the document which is original and for storing the document inputted in the document store section; a document correction section for correcting a character string of the document stored in the document store section in response to operation input, for registering a correction history including a number of characters deleted by a character string deletion process and a correction history including a number of characters before replacement by a replacement process in the correction history table, and for storing the corrected document in the document store section; and a correction history analysis section for referring to the correction history table to make a decision table including an opacity rate, the opacity rate obtained by dividing a total of the number of the characters deleted by the character string deletion process and the number of the characters before the replacement by the replacement process by a number of characters included in the original document.

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Claim 8:
8. The non-transitory computer-readable recording medium according to claim 1 , wherein when a condition of a document to be analyzed is inputted, the correction history analysis section extracts correction histories which meet the condition from the correction history table and calculates the opacity rate on the basis of the correction history extracted.