Independent from specific application domains, similar requirements can be identified regarding information needs during daily work. For coping with generality on the one hand and domain specificity on the other hand the Collaborative Agent-based Knowledge Engine CAKE is currently developed that combines agent and workflow technology in an innovative way. Agent technology is used for integrating various services, whereas workflow technology is used for coordinating collaboration among agents. 1 Collaborative Agent-Based Knowledge Engine (CAKE) Motivated by requirements derived from different application domains like fire services, agile software engineering, medicine, and geographical information systems a domainindependent system called Collaborative Agent-based Knowledge Engine (CAKE) [1] is currently developed aiming at supporting empirical and knowledge-intenseprocesses. Empirical processes [2] are mostly unpredictable, unrepeatable, and are subject to change as they are enac...