updates with the scalability written language-based version of the document encryption and version of the present invention provides methods, using a grammar that defines the structure of the structured electronic document, the electronic document in the preparation of I, by using the modified or added to the version value date, makes it easy to manage the documents in the repository and updates the version information request value at by using the aggregate only the change notification, the added information, allows for incremental update service of the electronic document of the receiving side. ; According to the present invention, where, by reflecting the modified or added lower structure By establishing a version, the update of the search in storage quickly and enables the update request for the information requester is desired stage (Level). According to ; In addition, the present invention, the version number of the parent structure are their values modified version which version if the value of the sub-structure modification, version value of any type of structure of the sub-structure information on whether the changes may include more. ; According to The present invention, by using as the encryption method identification information and the version of the electronic document, if the identifier is reused, the version value can be used as a way to distinguish the electronic document.
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