Implementations of the present disclosure include methods, systems, and computer-readable storage mediums for test optimization based on actual use of configuration parameters. Actions include receiving a parameter set from a monitoring system, the parameter set including multiple configuration parameters corresponding to development artifacts detected by the monitoring system, retrieving statistical data from a central data analysis infrastructure, the statistical data being retrieved from application systems executing software created out of the development artifacts, processing the parameter set using the statistical data to generate parameter clusters, and providing the parameter clusters to an integrated development environment to generate a test scope proposal based on the parameter clusters.