Patent ID: 7149963
Filing Date: 2006-12-12
Classification: G06F

Abstract:
1. A method for providing document revision support, the method comprising: receiving a document to be revised; converting the received document to data presented in a tree structure; storing the converted data as a saved original; receiving an instruction to revise a designated element of the converted data; creating revised data to be stored in said tree structured data, said revised data including the instructed revision to the designated element and a revision ID uniquely representing the instructed revision and an attribute representing a type of the revision made to the designated element as list structure data; saving the revised data designating a specific revision to be canceled, deleting the revision ID and attribute corresponding to the specific revision, and restoring the saved original to thereby cancel the specific revision; and designating a specific revision to be deleted, deleting the revision ID and attribute corresponding to the specific revision as well as the saved original, and reflecting a revision represented by the attribute on the original.