14. A document managing apparatus for dealing with an electronic document containing structural data, comprising: database means for storing document elements into which the electronic document is divided, and an entire document definition information containing information that represents an entire document structure of the electronic document; designating means for designating a portion of the electronic document to be edited; partial editing restriction information creating means for extracting a document element corresponding to the portion to be edited and the entire document definition information of the document containing the document element from said database means and for creating partial editing restriction information; document editing means for editing the portion designated by said designating means; and editing consistency examining means for determining whether or not an edited result of said editing means is consistent with the entire document corresponding to the partial editing restriction information.
14. A document managing apparatus for dealing with an electronic document containing structural data, comprising: database means for storing document elements into which the electronic document is divided, and an entire document definition information containing information that represents an entire document structure of the electronic document; designating means for designating a portion of the electronic document to be edited; partial editing restriction information creating means for extracting a document element corresponding to the portion to be edited and the entire document definition information of the document containing the document element from said database means and for creating partial editing restriction information; document editing means for editing the portion designated by said designating means; and editing consistency examining means for determining whether or not an edited result of said editing means is consistent with the entire document corresponding to the partial editing restriction information. 18. The document managing apparatus as set forth in claim 14, wherein said database means further stores entire document information containing a document identifier that identifies the electronic document including difference of revisions, relation information of the entire document definition information, and a revision number for correlating a revised document element with a document element that has not been revised and for representing the order of revisions, and each of document elements is assigned the respective revision number.