PRISM 2.1
Yesterday a new PRISM spec (v2.1) was released for public comment - zip file here. (Comment period lasts up to Dec. 3, '08.)
Changes are listed in pages 8 and 9 of the Introduction document. Some highlights:
- New PRISM Usage Rights namespace
- Accordingly usage of prism:copyright, prism:embargoDate, and prism:expirationDate no longer recommended
- New element prism:isbn introduced for book serials
An updated mod_prism RSS 1.0 module is available which lists all versions of PRISM specs including the forthcoming v2.1 spec. I will see about getting this added now to a more permanent location. Current version of PRISM remains at v2.0. Versions 2.0 and 2.1 are especially of interest to users of CrossRef because of their support for prism:doi and prism:url and users should consider upgrading their applications, e.g. RSS feeds.

Comments
I really wish that PRISM wouldn't change the namespace URI's for each release. They do this even for namespaces which don't change (like the Prism Rights Language). The effect is to break PRISM support for all existing metadata readers that comply with the RDF/XML specification.
PRISM should take a lesson from Adobe and leave the namespace URI unchanged when the spec is updated. The version number in the URI really shouldn't be used for this purpose.
Posted by: Phil Harvey | October 24, 2008 02:02 PM