Altova Mailing List Archives>Archive Index >xml-dev Archive Home >Recent entries >Thread Prev - RE: [xml-dev] RE: Caution using XML Schema backward- or forward-compatibility as a versioning strategy for data exchange [Thread Next] Re: [xml-dev] RE: Caution using XML Schema backward- or forward-c ompatibility as a versioning strategy for data exchangeTo: "Stephen Green" <stephengreenubl@-----.---> Date: 1/3/2008 12:51:00 AM 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 | ||||||
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