Abstract: The present invention is directed to a system for producing a target composition having one or more target property values. The system provides real time measurements of property values of the target composition being produced. The system can further provide real time image of the target composition for quality control and adjustment on one or more property values, such as color property values. The system can be used for producing the target composition, such as coating compositions, with improved quality control and increased productivity. The system can be used for OEM or refinish coating manufacturing or small volume paint mixing or adjustment operations.