Occupational Therapy concerns the person and his environment. In Occupational Therapy self-sufficiency (e.g. eating, dressing), leisure (e.g. playing, meeting friends, handwork) and productivity (e.g. writing an essay, washing windows) are differentiated. The aim of Occupational Therapy is to attain a satisfactory level of execution of everyday activities which alleviates pressure in the chosen participation of socio-cultural life.