2. The method of claim 1 , wherein the combining of the first class designation, the second class designation and the third class designation to generate an overall class designation comprises forming a weighted combination of the first class designation, the second class designation and the third class designation.
2. The method of claim 1 , wherein the combining of the first class designation, the second class designation and the third class designation to generate an overall class designation comprises forming a weighted combination of the first class designation, the second class designation and the third class designation. 3. The method of claim 2 , wherein the forming a weighted combination of the first class designation, the second class designation and the third class designation comprises weighting the first class designation with a weight of 2, weighting the second class designation with a weight of 2, and weighting the third class designation with a weight of 1.