9. The method of claim 7, wherein the decomposition comprises the steps of: selecting a constituent model referenced by the second cell; determining whether a shape model referenced in the first cell maintains a rain relationship with the constituent model; and determining whether the constituent model is a shape model.
9. The method of claim 7, wherein the decomposition comprises the steps of: selecting a constituent model referenced by the second cell; determining whether a shape model referenced in the first cell maintains a rain relationship with the constituent model; and determining whether the constituent model is a shape model. 10. The method of claim 9, wherein in the event that the shape model referenced in the first cell does not maintain a rain relationship with the constituent model and the constituent model is a shape model, the method further comprises the step of identifying the constituent model as friendly with the shape model referenced in the first cell.