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[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: The triples datamodel -- was Re: Semantic Web pe
 I guess the Internet (Really The WWW) hasn't heard of certification testing. If those are State agencies, your customer is in trouble and so is your business model. len From: Thomas B. Passin [mailto:tpassin@c...] > At worst, however, schemas encourage a mindset and assumptions > that are actively harmful when trying to produce scalable, robust, > interoperable systems. What Rusty said. Here are two vingettes from my own experience to underline his point. - We will be getting xml messages (via JMS) from a state agency - the state of California, in fact. Their contractor tells us the messages conform to such-and-such a schema. The schema happens to be one that we ourselves wrote; it is a draft version of a to-be standard. But the first documents we get do not validate against the schema, and unfortunately they are not just simple extensions. In a few places new structures have made their way into the document. It seems pretty clear what has happened. Probably the messages originally validated, but then the contractor found they wanted to make some changes and forgot that the changes might not be schema-valid. As Rusty says, that is the world of the internet. 
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