Context aware service oriented architecture for Web based education

In the past years, most of e-learning researches devoted themselves to the exchange and interoperability of various educational materials such as LOM and SCORM. Recently, IMS Learning Design specification provides a generic and flexible language to support pedagogical diversities in online learning. In this paper, we proposed a context-aware SOA to enable the reusability of both learning designs and learning materials by treating them as Web Services. We utilize OWL-S as the service description language to support reasoning procedures and teachers can utilize the semantic matchmaker to retrieve desired learning designs and learning materials in a semantic manner so that they can compose their learning scenarios more efficiently and flexibly.