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W3C Workshop on XML Schema 1.0 User Experiences - LC124

Paul Downey,

Compatible Evolution

XML is a YASDF*:

* yet another self describing format

WSDL Last Call Issue - LC124

XML Schema 1.0 for Description

  1. description of content constructed by a sender
  2. description of content available for a receiver
  3. validating the format of a message

Versioning and XML 1.0

Validate Twice

Henry Thompson's technique:

  1. Validate document
  2. Prune PSVI elements marked "*[pe:validity()='notKnown']"
  3. Validate pruned document

Annotation, Extension, Mandatory

LC124 - Questions