A product catalog is associated with a rules service allowing administrators to conduct examinations of a computer system's health. Rules services establish a set of rules to be run against a particular computer system and thereafter invoke a rules engine. The rules service accesses a product catalog to supply product reference data regarding each component of interest in the computer system. The product reference data supplies to the rules service structure and characteristics of the component's telemetry data as well as factors to consider with regard to component interaction. Once supplied with the product reference and input data the rules service conducts the analysis. When reference data is not available or fails to match parsed input data, a search is conducted to identify and retrieve reference data matching the structure and characteristics of the parsed input data. Upon finding a match the product catalog is updated with the new information.