Document revision support program and computer readable medium on which the support program is recorded and document revision support device

A computer readable medium, on which a document revision support program is recorded, said program enabling a computer to execute a 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 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.

A document revision support device comprising:

• means for inputting a document to be revised;
• means for converting the inputted document to data presented in a tree structure;
• means for storing converted data as a saved original;
• means for receiving an instruction to revise a designated element of the converted data;
• means for creating revised data to be stored in said tree structured, said revised data including a revision ID uniquely representing the instructed revision and an attribute representing a type of a revision made to the designated element as list structure data;
• means for saving the revised data;
• means for 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 said revision;
• and
• means for 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.