Ray Denenberg writes:
 > (Hopefully this formats better.)
 >
 > Ross Singer initiated this discussion, first on code4lib, and subseqently (at my suggestion) here and on OpenURL.
 >
 > Unfortunately it caught on only on code4lib, and the thread there quickly degenerated into incoherence. I request that we discuss the issue here, and/or OpenURL (and not on the code4lib list) and preferably on one list only, and my preference would be here.
 >
 > The issue, synthesizing Ross's message:
 >
 > SRU has an XML schema registry at
 > http://www.loc.gov/standards/sru/resources/schemas.html
 >
 > OpenURL has a registry of metadata formats:
 > http://alcme.oclc.org/openurl/servlet/OAIHandler?verb=ListRecords&metadataPrefix=oai_dc&set=Core:Metadata+Formats
 >
 > it includes (but is not limited to) XML schemas.
 >
 > OpenURL and SRU are using different info URIs to describe the same things.
 >
 > For example:
 >
 > info:srw/schema/1/marcxml-v1.1 and info:ofi/fmt:xml:xsd:MARC21
 >
 > orinfo:srw/schema/1/onix-v2.0 info:ofi/fmt:xml:xsd:onix
 >
 > Is it possible/feasible to agree on one or the other, or will (must) we continue to use the SRU-registry identifiers for SRU and the OpenURL registry identifiers for OpenURL?
 >
 > >From my point of view we would need to come to agreement (if any) on this fast (at least agreement in principle), because of a number of initiatives currently in progress, and if we can't then we would just keep using thedual systems.
 >
 > Comments please.
 >
 > (I really do strongly request that we resist the temptation to take this thread off-course, like making absurd suggestions that the identifer for a schema should be its namespace URI. If you want to talk about that, please initiate a new thread.)

I propose the simplest possible solution (and also the only one that
we, the ZING community, can implement unilaterally: let's throw away
the SRU-specific schema identifiers and use the OpenURL ones in SRU.
If we do that, then hopefully our example will encourage others (OAI?)
to follow suit.

(Needless to say, well-behaved SRU servers would still continue to
recognise the old schema identifier URIs, as not all clients will
change over immediately.)

 _/|_ ___________________________________________________________________
/o ) \/ Mike Taylor <[log in to unmask]> http://www.miketaylor.org.uk
)_v__/\ "You cannot really appreciate Dilbert unless you've read it in
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