This paper presents a dissertation project on business-integrated, service-oriented learning architectures. The isolation of corporate learning management from core business functions at all levels of a coherent sociotechnical enterprise system (task, technology and people) motivates the objective to integrate learning into business information systems. Connecting to related standards and frameworks, the thesis is to make a case why SOA qualifies not only from a technical but also from an organizational perspective. The paper sketches the problem situation of non-integrated learning and knowledge management and derives a research agenda that aims for a conceptual and technical reference architecture. The dissertation thesis is conducted in the context of the EC-funded research project PROLIX that promotes process-oriented learning and knowledge exchange in corporate environments.