The model based design is a design approach that is spreading in the technical environment. The center of this development process is the creation of a virtual model of the system of interest that is then used to perform design and test activities such as validation, optimitazion and simulation on the designed object. It can also be used for automatic code generation or reporting, allowing companies to save money and time in the design phase and hence to be present early on the market scene. This project was developped in team with a student colleague, in a company that produces and distributes gear shifting systems.