RE: [xml-dev] Schematron Question: proper way to express the text versio

[<Peter.Kirkham@generaldynamics.uk.com>]

I'd use 'is':
"In the context of the Meeting element, I assert that the value of
EndTime is greater than the value of StartTime"
Since it implies that you are testing the instance - if you were
asserting "that the end time must be after the start time", then that
can be read that you are making a higher order assertion for all end
times, rather than verifying this instance, since although Schematron
isn't higher order, English can be. Though having briefly been a prolog
programmer I always get a bit weirded by the overloading of the word
'assert' to mean 'verify' (though asserting a falsehood in a context
will yeild a contradiction, so they're somewhat equivalent).


Pete


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