For optical measuring tasks, Mazet GmbH is offering a tool for the simulation of compact spectral-selective semiconductor sensors for precise inline measurements. It yields shorter development times and better quality. The system is simulated during the feasibility study using the tool optimized to meet the requirements presented. The simulation software enables choosing the right sensor and the optimal combination of filters and illumination in the preparatory phase to facilitate the best quality possible for the actual measurement. Various sensor models for color measurement cover a variety of precision requirements. The sensor models are suitable for simple teaching, RGB and XYZ sensors, absolute color measurement, multirange sensors, and radiometric measurements with multirange sensors.