• From: "Costello, Roger L." <costello@m...>
• To: "xml-dev@l..." <xml-dev@l...>
• Date: Mon, 12 Mar 2012 18:12:46 +0000

James Clark asserts that it is not the role of a schema language to model "conceptual" relationships such as inheritance. Such relationships are best modeled elsewhere.

Let us suppose that James is correct.

Question: Is it best practice to avoid the inheritance machinery provided in XML Schema -- derive-by-extension, derive-by-restriction, and element substitution? What are the practical benefits of doing so?

/Roger

• Follow-Ups:
  • RE: RNG vs. XSD : is the use of abstract types andpolymorphism a good or bad thing for schemas for XML?
    • From: "Costello, Roger L." <costello@m...>
  • RE: RNG vs. XSD : is the use of abstract types andpolymorphism a good or bad thing for schemas for XML?
    • From: David Lee <dlee@c...>