7. The system of claim 6 , wherein determining the weighting factor includes accepting a weighting factor predefined for one or more of the predefined metrics.
7. The system of claim 6 , wherein determining the weighting factor includes accepting a weighting factor predefined for one or more of the predefined metrics. 8. The system of claim 7 , wherein determining the weighting factor includes modifying the weighting factor predefined for one or more of the predefined metrics.