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On Tue, Sep 27, 2016 at 7:41 AM, Michael Kay <mike@saxonica.com> wrote:

I suspect that the kind of people who define models like the XML schema model and the relational model are more comfortable with maths and legalese English than with pictures. So I think it tells you more about the psychology of the individuals concerned than anything else.

Yeah. My initial reaction when I first encountered Object Constraint Language was this is just a demathematised version of Z.

Interestingly Schematron is considered to be an alternative to OCL. I'm not sufficiently qualified to offer an opinion but it has certainly been looked at.


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