Identity management and access control are essential in the enterprise IT landscape in order to control access to applications and to fulfil laws or regulations. The global competition of enterprises leads to short development cycles and fast changes of IT applications, which requires also an error-free and quick adaption of its security. The model-driven development of access control policies promises to cope with this situation. This work introduces an mda-based environment for generating access control policies. A comprehensive overview is given on the organisational aspects, describing details of roles, artefacts and tools involved. On this basis the four phases of a model-driven development process for access control policies and their organisational aspects are presented.