A method for version recording and tracking. First, a file is stored into a data directory. Thereafter, the checksum of the file is calculated. Then, the version information, the filename, the size, and the checksum of the file are stored into the data directory. When a file needs to track its version...http://www.google.de/patents/US6996585?utm_source=gb-gplus-sharePatent US6996585 - Method for version recording and tracking
