From: Deborah McGuinness ([email protected])
Date: 10/27/02
Removing the may-bind variables seems like a nice side-effect simplification of the proposal. (we have had a few questions about them anyway when explaining this scheme to users). d Richard Fikes wrote: > > 4. Answer templates. > > > > A query must supply an answer template, which is a character string > > (?? Piece of DAML?? I prefer the more generous definition) containing > > some of the variables in the query pattern. If no answer template is > > explicitly provided, then the query pattern is the default answer > > template (Sandro's idea). > > The answer template interacts with the must-bind variables list and the > may-bind variables list. We need to make some design decisions about > that interaction. We could say that the variables in the answer > template *are* the may-bind and must-bind variables, and then that a > query can optionally include a must-bind variables list indicating which > of the variables in the answer template must have a binding in an > answer. There would then be no need for a may-bind variables list. > That would remove redundancy from the query, but would require more work > by the server. ... ... > > Richard -- Deborah L. McGuinness Knowledge Systems Laboratory Gates Computer Science Building, 2A Room 241 Stanford University, Stanford, CA 94305-9020 email: [email protected] URL: http://ksl.stanford.edu/people/dlm (voice) 650 723 9770 (stanford fax) 650 725 5850 (computer fax) 801 705 0941
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