Re: Version 1.4 of XSV released: derivation-by-restriction experiment

 writes:

> Henry: do you have any implementation experience that would bear on the 
> practicality and scaleability of this as a general solution?  Are you 
> computing the intersection of the models, or are you just double 
> validating against both base and derived?  Thanks.

Neither.  Intersection is not what's wanted, subsumption is.

What I do is 'parse' every path through the derived type's content
model with the base type's content model.

ht
-- 
  Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
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