Re: Schema Namespace name, schemaLocation, and Schema V ersi
David, >> Or you could have postponed this errata to W3C XML Schema 1.1 which >> hopefully would involve a namespace change. > > It may or may not have a change but why do you _hope_ for that. > That's saying that if XML schema has any kind of revision, then the > name of every schema construct should change. I think that part of the issue is that XML Schema doesn't have any version indication aside from the namespace used for the schema. So if XML Schema 1.1 *didn't* involve a namespace change from XML Schema 1.0 then it would be impossible to distinguish schemas written for XML Schema 1.0 from those written for 1.1. This means that schema processors can only support one version of XML Schema; if people upgrade the processor without upgrading their schemas (very likely when processors are embedded in (XSLT processors embedded in) browsers and people view (transformed) XML pages pointing to schemas), their validation will not work as expected. I agree that versioning using namespaces is a bad idea in general, but if you don't have any other mechanism, you don't have much choice. How do you handle versioning in MathML, by the way? Cheers, Jeni --- Jeni Tennison http://www.jenitennison.com/
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