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   RE: [xml-dev] The triples datamodel -- was Re: [xml-dev] Semantic Web pe

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I guess the Internet (Really The WWW) hasn't heard of certification 

If those are State agencies, your customer is in trouble and so 
is your business model.


From: Thomas B. Passin [mailto:tpassin@comcast.net]

> 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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