1. Control of standard schemas and namespaces by platform vendors
   • This is vendor dependence in another guise
   • If you propose a standard, your implementation will always be 6-12 months ahead of everyone else's
   • Platform vendors are a particular problem because they can optimize the platform for a particular grammar
2. Incomplete implementation of XSL
   • Crippled XSL limited to tagset transformations (XML to XML)
   • This implies document delivery via a single tag set (HTML)
   • In other words, a return to the status quo!
   • Solves the data exchange problem but ignores the larger publishing problem and keeps users dependent on vendors

XML & JAVA:   PORTABLE DATA — PORTABLE PROGRAMS