Ed,

Yes, you are right in assuming that XML does not support SGML Catalogs.
There is a proposal for an XML version of the catalog, but nothing official
that I have seen. This is one reason why I recommend using SGML for your
maintenance/archival source, and XML for publishing. In this scenario, you
can supply "href" attributes on XML linking elements using batch processing
of SGML documents and catalogs.

On a related note, URNs are (slowly) becoming a reality at long last, and
this will have an impact on the maintenance and delivery of SGML, among
other things.

Daniel

At 10:00 AM 4/24/99 -0400, you wrote:
>Michael, I was interested to read:
>
>"In a phrase that I think Bill Landis coined, we are treating our finding
>aids as data and not as text.   We have chosen to create and maintain our
>files in xml mode."
>
>Am I right in saying that XML doesn't support something like SGML Catalogs,
>which can allow you to maintain the file locations of external entities
>(images, standard text, etc) in one place? Or is there an equivalent
>mechanism in XML?
>
>Also, just out of curiousity are you currently using one of these fancy new
>XML editors to create and maintain your EAD XML?
>
>Ed Summers
>Old Dominion University
>
>
Daniel V. Pitti         Project Director
Institute for Advanced Technology in the Humanities
Alderman Library        University of Virginia  Charlottesville, Virginia 22903
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