23. The method of claim 15 , further comprising: deriving a satisfaction rating from unstructured document metadata; and analyzing an aggregation of metadata values to provide a measure of overall satisfaction.
23. The method of claim 15 , further comprising: deriving a satisfaction rating from unstructured document metadata; and analyzing an aggregation of metadata values to provide a measure of overall satisfaction. 31. The method of claim 23 , further comprising: presenting a non-trended report by displaying overall satisfaction aggregated over a non-time data dimension; and wherein receiving an instruction to determine the one or more causal factors associated with the observation selected by the user further comprises: allowing the user to select a specific data dimension value as the observation for investigating causal factors that show at least one of a statistically significant tendency to associate more high degree satisfaction rather than a poor degree of satisfaction and a statistically significant tendency to associate more with a poor degree of satisfaction rather than high degree satisfaction.