m according to an embodiment of the present invention; [0039]FIG. 21a and 21 b are an illustrative flow diagram of the incompatibility module according to an embodiment of the present invention; [0040]FIG. 22 is an illustration of the tables involved in the incompatibility module according to an embodiment of the present invention; [0041]FIG. 23 is a flow diagram of the comparison module according