On Jun 17, 2009, at 3:29 PM, Uiratan Cavalcante wrote:

(defrule MASKModelTransformation
(ModelingProduct (product ArchitecturalModel) (ref ArchitecturalModel&~nil))


I think you intended that second "ArchitecturalModel" to be a variable (?ArchitecturalModel). As it is, it's a symbol, and it definitely doesn't match the facts in working memory.

Using the JessDE to edit your code would help in this case; the syntax coloring would let you more easily spot errors like this.



---------------------------------------------------------
Ernest Friedman-Hill
Informatics & Decision Sciences          Phone: (925) 294-2154
Sandia National Labs
PO Box 969, MS 9012                            [email protected]
Livermore, CA 94550                             http://www.jessrules.com





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