Abstract. In recent years the requirements for business information systems have changed. Knowledge- and process-management demand for flexible, dynamic and distributed software environments including the ability to work across the organization’s boundaries. With traditional software not up to these challenges new concepts have been developed. This paper reviews the state of the art in workflow modelling, agent technology and agent-based workflow systems. It also pays tribute to the requirements of collaboration and proactivity. 1

Agent-based Information-systems