Hi Stef, Could you provide just one example of such a filter? Cheers, Doru On Nov 30, 2007, at 2:17 PM, stephane ducasse wrote: -- www.tudorgirba.com www.tudorgirba.com/blog "We cannot reach the flow of things unless we let go."

Hi Stef, I took a look at AzadehExtraction, and in all the ExtractionRules that are implemented you take the model as an input, but in the same time you know in each predicate what is the exact type of entities that you actually look for, and in the end you only return entities of the same type. For example, name matching looks like: NameMatchingExtraction new matchingName: '*LAN*'; matchClasses; extract: model. This returns a ClassGroup. But could this not look like this: NameMatchingExtraction new matchingName: '*LAN*'; extract: model allClasses. ? But perhaps you have further intentions with this package and this is just the beginning. I am still looking for the use case for heterogeneous groups :). Also take a look at the ConformityStrategy hierarchy, because it is very similar in intent with AzadehExtraction. Doru On Dec 3, 2007, at 12:37 PM, Stéphane Ducasse wrote: -- www.tudorgirba.com www.tudorgirba.com/blog "In a world where everything is moving ever faster, one might have better chances to win by moving slower."