| 摘要 |
PROBLEM TO BE SOLVED: To manage a structured document by adding a signature to each of entities and to independently extract the contents of the entity as a structured document capable of reference/editing. SOLUTION: When registering a document, an electronic signature corresponding to the content data of a document component is read and stored, electronic signature correspondence relation data showing the correspondence of the content data and the electronic signature are stored and these document component groups are managed totally for each document. When referring to the document, the electronic signature corresponding to the content data of the document component of a reference object is read out while using the electronic signature correspondence relation data. When updating the document, processing similar to processing at the time of referring to the document is performed concerning the document component of an updating object, the content data of the edited/updated document component are read, stored content data are replaced, an electronic signature corresponding to these content data is read and replaced with a stored electronic signature, and stored electronic signature correspondence relation data are replaced with the electronic signature correspondence relation data between the content data of the updated document component and the electronic signature. |
