Re: Schema OID for IR-Explain-1 and IR-Extend-1?

• From: Ray Denenberg, Library of Congress <rden@loc.gov>
• Date: Wed, 25 Feb 2004 16:56:47 -0500
• To: "ZIG" <www-zig@w3.org>
• Message-ID: <09b101c3fbea$43c5c760$849c938c@lib.loc.gov>

> Thanks, but schemas are not purely for GRS-1 according to the spec.
> They can be equally used with SUTRS for example (as described in
> RET3 in the appendicies).

A schema (in Z39.50) is an abstract view of a record *for purposes of
element selection*. Having selected element you can package them in
any record syntax you want (so you're correct in that respect) but the
only record syntax developed for this purpose is grs-1.

> A concrete reason I was after a schema OID for explain and extend
was
> because ElementSetDetails in explain has a mandatory schema oid
field.

I view the ASN.1 for Explain as both a record syntax and a schema.
Likewise for ES. So if you like, consider the record syntax oids as
schema oids (there's nothing magic about the '5' versus '13').

--Ray

Received on Wednesday, 25 February 2004 16:56:47 UTC