Automating the filing system of an office has proven to be most difficult for documents, which are not created on some electronic system. These enter the electronic storage medium in one of several ways. They may be scanned using a facsimile hardcopy. They may be microfilmed or microfilmed, with the user supplying some index terms for a document to the system. Later, the micro image reader moves the proper frame into view under computer control. Or the entire text may be re-keyed into the system.