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RE: Are people really using Identity constraints specified in

• To: Michael Kay <michael.h.kay@n...>
• Subject: RE: Are people really using Identity constraints specified in XML schema?
• From: w3c@d...
• Date: Mon, 23 Aug 2004 22:34:00 -0400
• Cc: "'Prakash, Prakash Yamuna, Yamuna'" <techpy@y...>, xml-dev@l...
• In-reply-to: <20040823083134.DFZZ4370.mta02-svc.ntlworld.com@Turtle>
• References: <20040823083134.DFZZ4370.mta02-svc.ntlworld.com@Turtle>
• User-agent: Internet Messaging Program (IMP) 3.2.2 / FreeBSD-4.8

Michael,

This is a walk-in-the-park for CAM to handle.

You can see this by inspecting the CAM template in the tutorial ZIP
file publically available from the OASIS CAM area - the Soccer Catalogue Order
example.

Basically you can tailor the structure to the localization needed - driven by a
dynamic context parameter - and essential select the correct instance structure
(and rules) accordingly.

If you use CAM to also drive your online form generation - you have an even
better synchronization - you merely ask people the context variable value up
front - in this case its obvious - please select your country (actually they
could figure it out for you from your URL domain too if they were really
clever...).

Cheers, DW

 Quoting Michael Kay <michael.h.kay@n...>:

> Incidentally, it happens less often nowadays, but just yesterday I made an
> online purchase from a US supplier who required me to enter a two-letter
> code in the "State" box and a numeric value in the "postal code" box,
> despite the fact that I had entered UK as the country; so of course I lied,
> and they now have my state recorded as "ZZ" and the postal code as 12345.
> They also required a ten-digit phone number. Which reinforces another of my
> arguments: the more validation you do, the more you force people to supply
> incorrect information.
>  
> Michael Kay
> 

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  • RE: Are people really using Identity constraints specified in XML schema?
    • From: "Michael Kay" <michael.h.kay@n...>

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