[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: XML Schema 1.1 Best Practice: Expressing BusinessRules -
On 10/11/2010 13:38, Costello, Roger L. wrote: > Issue > > How should business rules be expressed? Should an XML Schema 1.1 document co-locate business rules and data rules? Or keep them separate? First define your terms (you haven't done so, except by example). I'm not convinced there's a real difference. Unless perhaps your definition of "data constraint" is to say "there are many ways we could represent this information, and this is the way we have chosen" - e.g. that all dimensions should be expressed in cm - so the maximum size of a parcel is a business constraint, and the way the size is represented is a data constraint. But the boundary between the two is likely to be a fuzzy one much of the time. Michael Kay Saxonica
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