[topicmapmail] Announcement of XML Schema for ISO 13250 Topic Maps

Martin Bryan mtbryan@sgml.u-net.com
Thu, 21 Dec 2000 21:19:32 -0000


Murray

> I won't have time to look over this in detail before the holidays, but
> I'm curious: does the proposed XLink markup include any element nesting
> beyond parent-child? One of the reasons XTM doesn't use XLink more fully
> is that any deeper nesting is undefined by the XLink spec.

I worked out that topic names map to XML titles, which is the only point at
which you need to "go down a second level"

>There were
> several other problems (such as arcs being confined to their parent
> element) that kept us from using more of XLink.

As XML Links only allow one resource to be identified per link I played on
this strength, making maximum use of features such as labels and titles
within the links.
>
> Also, I'm guessing that your implementation deliberately ignores the
> existence of the XTM syntax. Why? What application puts a higher priority
> on XLink use than interoperable, interchangeable syntax? Just curious.

The insane decision to use a fixed tag set made the use of XTM an
impossibility in my environment. I need to be able to use explicit tag
names.

Martin