3. The method of claim 2 , wherein the design rules include: a feature design rule that defines geometrical characteristic of an IC feature; and a relational design rule that defines a spatial relationship between two IC features.
3. The method of claim 2 , wherein the design rules include: a feature design rule that defines geometrical characteristic of an IC feature; and a relational design rule that defines a spatial relationship between two IC features. 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.