- From: Jeen Broekstra <jeen@aduna.biz>
- Date: Tue, 12 Jul 2005 09:45:11 +0200
- To: carlos.enguix@deri.org
- Cc: semanticweb@yahoogroups.com, semantic-web@w3.org
Carlos F. Enguix wrote: > According to the Sesame documentation it is indicated that Sesame > supports versioning. > > Could anyone tell me in which way Sesame supports versioning and > its features (metadata stored). > > I have the suspicion that Sesame supports minor features of > versioning because there are no references in the documentation. The versioning in Sesame is part of OntoText's OMM component, so the documentation for it can be found at http://ontotext.com/omm. Briefly, the versioning system allows low-level fine-grained (statement level) change tracking. Each transaction that changes the repository creates a new 'state', and a state can be labeled to create a 'version'. Rollback to previous versions is supported. See [1] for details. To be honest, I personally have little practical experience with the versioning system, but undoubtedly the OntoText people can tell you more about its performance. > Also can anyone tell me if they are aware of any API or RDF > repository supporting versioning so we may include in the future an > evaluation and comparison of versioning features. As a point of interest to this discussion, I would like to add that for the upcoming Sesame 2.0 release (~September 2005), full named graph support and extended transactional support are planned. Both features will help support more sophisticated versioning schemes. Regards, Jeen [1] http://www.ontotext.com/otk/del38.pdf -- Jeen Broekstra Aduna BV Knowledge Engineer Julianaplein 14b, 3817 CS Amersfoort http://aduna.biz The Netherlands tel. +31 33 46599877
Received on Tuesday, 12 July 2005 07:46:46 UTC