Method and system for preserving document integrity

Details Method and system for preserving document integrity Method and system for preserving document integrity

1997-07-01

1999-11-09

Lintz, Paul R.

Data processing: database and file management or data structures

Database design

Data structure types

707103, 707104, 707511, G06F 1730

Patent

active

059832428

ABSTRACT:
A method and system for preserving document integrity between potentially partially incompatible versions of a program module by maintaining forwards compatibility and backwards compatibility. Version (n') of the program module is released after version (n). A "saved by version (n)" bit may be activated any time that version (n) saves a file. The "saved by version (n)" bit indicates to subsequently-released versions, such as version (n'), that the file has been saved by version (n) and, based upon this information, appropriate action should be taken by the subsequently-released version. A "warning from future version" bit may be activated to indicate that a feature or features of the subsequently-released version is not supported by version (n). Based upon receiving this bit, version (n) may open the file with these features disabled or may take some other appropriate action.

REFERENCES:
patent: 4558413 (1985-12-01), Schmidt et al.
patent: 4627019 (1986-12-01), Ng
patent: 4646229 (1987-02-01), Boyle
patent: 4751740 (1988-06-01), Wright
patent: 4807182 (1989-02-01), Queen
patent: 5485606 (1996-01-01), Midgdey et al.
patent: 5504879 (1996-04-01), Eisenberg et al.
patent: 5642503 (1997-06-01), Reiter
patent: 5706510 (1998-01-01), Burgoon
patent: 5740405 (1998-04-01), Degraaf
patent: 5745906 (1998-04-01), Squibb
patent: 5805899 (1998-09-01), Evans et al.
patent: 5806078 (1998-09-01), Hug et al.
patent: 5870764 (1999-02-01), Lo et al.
patent: 5873097 (1999-02-01), Harris et al.

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