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[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: Are people really using Identity constraints specified in
 w3c@d... writes: > > Peter, > > That functionality is really in the registry interface - and > is a designer support functionality - to return potential > candidate content fields - as you are creating the CAM > template in the first place. > > If I look at something like OAGi BODs and search in their > data dictionary on 'date' 'billing' - I probably get about 10 > or 15 hits, and then I need to decide which one - by looking > at the semantics around each - is best suited to my purpose, etc. > > Seems like we are straying now into design-time v run-time. I knew not explaining that example better would get me into trouble. The issue is, that in order to know the patient population size you have to first run the query. Only post hoc do you know that it falls under the rule of "too small of sample size can't be constrained by X". To compound the issue you need a query history to make sure that the individual component queries aren't run separately (maybe even by multiple individuals in close proximity to each other), since in this case since that would give the same results. It's got nothing to do with content, rather it's the problem that privacy rules (business rules) can be violated by negative responses. To work around that requires that you understand the context of the query and the results in combination with each other. This is one of those areas, where if you have to solve the problem, you can likely justify throwing non-trivial amounts of hardware at it... > Ooops - it must be Friday afternoon again! :-) 
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