Maestro Active is the new operator interface of the SCM Group, featuring a uniform graphical interface for all SCM technologies. The challenge was to create a sophisticated and user-friendly design system that includes templates, components, illustrations, icons, guidelines and rules to support the SCM team in designing all applications of the software suite. Taking into account the needs of users, the design is based on methods from field research to concept development workshops, as well as prototyping and testing, in order to deliver a comprehensive design system platform.