1. A telecommunications network management system that comprises: a service database that stores a service model, wherein the service model comprises a hierarchy of service components, each component having one or more parameters, wherein at least some of the parameters are primary parameters having values collected from sources in the network, and at least some of the parameters are secondary parameters having values calculated from other parameters; a service repository manager that provides access to the service database and tracks deployed instances of each service component; a data collector component that receives service information from one or more sources in a telecommunications network, and that converts the service information into values of primary parameters of a service model; and a performance data manager that receives service component instance information from the service repository manager, wherein the performance data manager obtains and processes the service model hierarchy to determine multiple clusters, each cluster containing one or more service components that are closely related by the service model.