>> Furthermore, in more data (as
>> opposed to document) applications of XML, PCDATA-only content seems to be
>> relatively common.
>
>Perhaps true. But maybe that's a historical artifact due to there
>being no standard way to express rich text within databases.
PCDATA-only content models are likely to be extremely common in many areas
and not necessarily related to their use in databases. I use them all the
time in CML. They are also widely used in the examples in the RDF draft
(e.g. the Dublin Core uses).
P.
Peter Murray-Rust, Director Virtual School of Molecular Sciences, domestic
net connection
VSMS http://www.nottingham.ac.uk/vsms, Virtual Hyperglossary
http://www.venus.co.uk/vhg