• From: "bryan rasmussen" <rasmussen.bryan@g...>
• To: "Stephen Green" <stephengreenubl@g...>
• Date: Thu, 3 Jan 2008 01:51:15 +0100

On Jan 2, 2008 11:42 PM, Stephen Green <stephengreenubl@g...> wrote:
> To elaborate:
>
> taking Roger's scenario:
>
> > [in version 1]
>
> > <distance>100</distance>
>
> > means "distance from center of town."  Accordingly, the client's
> > application does calculations based on that meaning.
>
> > In the version 2 data the syntax is changed in a forward-compatible
> > fashion.  In addition, the semantics of the <distance> element is
> > changed to "distance from town line."
>

actually I really hated that example because I found it somewhat
unrealistic for something that would actually happen, and somewhat
data-apocalyptic.

Cheers,
Bryan Rasmussen

• Follow-Ups:
  • RE: RE: Caution using XML Schema backward- or forward-c ompatibility as a versioning strategy for data exchange
    • From: "Michael Kay" <mike@s...>
  • Re: RE: Caution using XML Schema backward- or forward-c ompatibility as a versioning strategy for data exchange
    • From: "Stephen Green" <stephengreenubl@g...>

• References:
  • RE: RE: Caution using XML Schema backward- or forward-compatibility as a versioning strategy for data exchange
    • From: Len Bullard <len.bullard@u...>
  • Re: RE: Caution using XML Schema backward- or forward-c ompatibility as a versioning strategy for data exchange
    • From: "Stephen Green" <stephengreenubl@g...>