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Re: schemas now

• From: Tim Bray <tbray@t...>
• To: Steven Marcus <srnm@y...>, xml-dev@i...
• Date: Thu, 24 Jun 1999 09:43:50 -0700

At 09:14 AM 6/24/99 -0700, Steven Marcus wrote:
>I need to do data typing in a java-based application using XML
>-- now!

So, like, write some code. 

>How far away are we from W3's "XML Schema" going to
>"Recommendation" status? I see that it was published on May 6
>1999. My guess is that we are at least a year away and perhaps 9
>months away from some prototype implementations.

These things are totally unpredictable both in theory and practice.
I wouldn't be surprised if they had a flash of inspiration and
shipped in September.  I also wouldn't be surprised if they got
stuck in some semantic tarpit and slipped to summer 2000.  Sorry
to be unhelpful.

>It appears that translation from XML-Data Reduced to the
>eventual XML Schema Recommendation stands a good chance of being
>accomplished programmatically. True?

Yes, but there's no guarantee at all (really) that XML schemas will
be a clean superset of XDR.

>Can anyone provide alternative suggestions?

Yes.  You're going to be writing some business-level validation logic
anyhow.  Check your own data types.  Then when there is a solid, stable,
nonproprietary schema facility with data typing, throw that part of
your own validation logic away. -Tim

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