6. The method of claim 3 , wherein the identifying simple features includes determining that a simple feature does not violate the feature design rule and violates the relational design rule between the simple feature and a complex feature.
6. The method of claim 3 , wherein the identifying simple features includes determining that a simple feature does not violate the feature design rule and violates the relational design rule between the simple feature and a complex feature. 7. The method of claim 6 , wherein the identifying complex features includes determining that a complex feature violates the feature design rule.