Knowledge management is becoming a fashion in many organizations. This entails the danger that large investments in knowledge externalization are made with little short-term repayment. Moreover, there is a risk that knowledge management administrations operate in parallel and with little connection to the business processes. We argue that the main purpose of business knowledge is improved action, and therefore we must interrelate processes of knowledge creation and usage with the normal business processes both on a conceptual and a system level. The paper presents a model-based approach for solving this integration problem, and describes an implementation architecture which links knowledges processes to a workflow environment. Experiences in an organization where our system was successfully installed indicate that such a “light-weight” integrated solution offers a relatively easy and immediately useful entry point into organizational knowledge management.