Accession Numbers - Linking Strategies

Hi:

This is probably a very simplistic question but I was wondering if there were any best practices for linking based on accession numbers for RDF documents. There seem to be different service based type mechanisms for each individual registry which may not provide the most stable means of linking. Correspondingly using lingua francas such as Bio2RDF namespacing [1] can also be problematic in that not all the namespaces of interest appear to be represented – and these also (as I understand it) provide no guarantee for dereference but rather a common URI template.

So just what is the best policy for linking accession numbers? Or should one avoid this.

Thanks,

Tony


[1] http://sourceforge.net/apps/mediawiki/bio2rdf/index.php?title=Namespace

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