On Thu, Aug 6, 2009 at 11:11 AM, Liam Quin <li...@w3.org> wrote:

I think it would be useful, in other contexts as well, to have a list of elements from a particular vocabulary that the vocabulary's designer baptizes as making sense to embed within another vocabulary. (Specifically, such an element E in vocabulary N could be called a boundary element, and a document D would be boundary-valid iff for every element E', if the parent of E' is in a different vocabulary, then E' is a boundary element.) This provides a sort of light weight validation for compound documents. It also might be semantically interesting to see how elements fall into the two different coarse categories.

Of course, this assumes that elements have consistent local semantics wherever they're found in a vocabulary, but this is not necessarily the case. For example, you could have a 'warning' element that has different weight in different contexts. Perhaps such context-sensitive elements are always non-boundary elements, though.

Take care,

John L. Clark

_______________________________________________________________________

XML-DEV is a publicly archived, unmoderated list hosted by OASIS to support XML implementation and development. To minimize spam in the archives, you must subscribe before posting.

[Un]Subscribe/change address: http://www.oasis-open.org/mlmanage/ Or unsubscribe: xml-...@lists.xml.org subscribe: xml-...@lists.xml.org List archive: http://lists.xml.org/archives/xml-dev/ List Guidelines: http://www.oasis-open.org/maillists/guidelines.php