You need to use two or more XML specifications/technologies:
XML Schema
XSLT, XPath
RDF, OWL, XML Topic Maps
etc.
You can develop an application, a tool, or a methodology.
Your project should be scoped so that it can be done in about four weeks.
For larger projects, you can develop a prototype rather than a complete solution.
You can use parts of your masters project or projects in other classes as long as it meets my criteria
This is your final!