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[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Namespaces and Schemes
 Sean B. Palmer said - > > According to 6.3.2(2):- > "The author of a document uses namespace declarations to indicate the > intended interpretation of names appearing therein; there may or may not be > a schema retrievable via the namespace URI." > > Can we simply declare a namespace for a document then, and validate it using > that namespace as a Schema URI? Is that legal? There seems to be some > abiguity in that statement "may or may not be". > BTW: I am one of the more outspoken defenders of XML Schemas, and their > usage. I also advocate Namespaces for validation purposes, but I would like > to see clarity...at the moment, I'm not quite sure what is wrong and what is > right. > A namespace is just a string that has a uri: format. It has no inherent significance so far as the namespace or xml-schema is concerned. And the prefix is just an arbitrary string that, it is hoped, helps a human read the document and reduces the character count. Of course you can use any word (string) any way you want. You can assign all sorts of meanings to it. For example, xslt assigns to its namespace the meaning "this element is an xslt instruction". Just be aware that it is ***you*** doing it on top of some standard base like xml-schemas. Much of this confusion would never have arisen if all the examples using namespaces had used uri's that did not look like url-style retrievable locations. Then it would have been clear that no actual document had been intended. Cheers, Tom Passin 
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