Web services for blended learning patterns

Web services currently draw the attention of learning technology researchers and practitioners to leverage the degree of interoperability and extensibility of current and future learning platform solutions. One very recent research thread in blended learning concentrates on capturing Web-based learning processes and their subsequent instantiation on learning technology in the form of reusable patterns. This paper presents CEWebS, an open Web-service-based learning technology architecture designed for supporting the implementation of these patterns with conceptual guidance by the layered blended learning systems structure (BLESS) model.