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Service oriented architecture for the implementation of distributed repositories of learning objects

Abstract:

Nowadays there are two key factors for e-learning implementation: the reusability of learning objects and the interoperability among the learning objects repositories. A learning object must be developed according to the standards like the ones established by IMS, ADL (SCORM) or IEEE (LOM) in order to obtain its complete reusability. It is possible to ensure that it can be integrated into any e-learning platform compatible with these standards, through its packing and description by metadata means. Later, it must be published in a repository guaranteeing its automatic location for the different types of users who can be implied in an educative process. This reusability will be complete if it is possible to discover among different repositories distributed over the Internet. This work presents a service-oriented architecture, which is implemented through Web services, for the universal discovery of learning objects stored in different repositories; this will allow to locate them independently of their physical location or storage technology. © 2010 ISSN 1349-4198.