Latest XML schema serialisations for SNAP data model

The XML schema documents below define valid XML documents for defining/registering/communicating SNAP entities. The main rot elements are defined in the SNAP elements schema. It uses the SNAP types schema, which in it turn depends on the IVOA standard VOResource and IVO Identifier schemas, which have been copied here for completeness.

A web interface is in progress for validating XML documents against the schemas and for editing and registering documents.
This is meant to be a prototype for the SNAP portal we have been discussing. Check now and then the following link : http://www.g-vo.org/snap
WARNING: DO NOT EXPECT A FULLY FUNCTIONING AND ROBUST SYSTEM YET !!!

Change history:

• 2008-02-13: fixes to make the schemas compatible with the latest UML diagrams.
  • Added childobject, parametergroup and propertygroup.