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In this article we present a framework for the integration of external and independent software components into IMS-LD (Learning Design) based courses that cater for adaptivity. Our framework comprises a design specification and an implementation of adaptations in CSCL (computer-supported collaborative learning) oriented and standards based architecture. The architecture allows combining existing research on explicit representations of collaborative learning processes (i.e. learning designs) with the availability of existing and tested collaborative learning tools (e.g. a forum in a virtual learning environment (VLE), an agent, a service or even a software component that provides a specific functionality). The architecture allows controlling the learning tools either by a human or a pedagogical agent and thus enables adaptive interventions to the flow of the learning activity. A mediator component is the key …