In BMC Performance Assurance, a component that transforms raw data into working system models and performance reports. These models and reports can be used to track the various users and processes consuming system resources. Data is collected according to workload characterizations. The user customizes this data to specify computers or policy files for collection, transaction and user classes to be tracked, desired time period, and report types to generate. Analyze system models can be used by the Predict component. The reports can be viewed in both the Visualizer component and BMC Performance Perceiver.