Organisations and their environment are constantly changing. Organisational development is a method by which change processes are carried out. The involvement of all participants and a well-planned step-by-step approach are essential for it to succeed. The goal of organisational development is to keep the organisation viable and adaptive, to eliminate dysfunctions and obstacles and to facilitate learning processes. Organisational development makes use of the knowledge that exists within the organisation. It is above all a management task and is often carried out in cooperation with professional experts.