DOCUMENT FILE SYSTEM

PURPOSE:To attain the systematic editing and control of document by setting the document attribute data to the name given to a document and storing hierar chically the text of the document and the document attribute data. CONSTITUTION:A document attribute data set processing part 12 divides the name of a document to be stored in a document file together with the document into plural variable length fields, gives the field attribute to each field name, and sets the field attribute to the document as the document attribute data. A document data storage part 13 turns each field attribute of the set document attribute data into a hierarchical structure and stores it in response to the document. Then a control processing part 11 edits and controls the document data by means of those stored document and document attribute data. Thus the document can be easily and systematically edited and controlled and the document data can also be easily retrieved.