Abstract
In this system, teaching flow is regarded as a special workflow, and a loose architecture is desinged based on BPEL and web service, to achieve the IMS Learning Design (LD) standards. IMS LD provides multiple roles of curriculum design to support collaborative learning of course participants. Through this system, we convert a course depicted by IMS LD into a number of BPEL workflows, and make these workflows communicate each other through web services. The IMS LD is implemented by the BPFL and web services, which make the system more extensible and easier to be intergrated with other systems.
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