文章基本信息

标题：On the use of an IMS LD ontology for creating and executing Units of Learning: Application to the Astronomy case study
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作者：Eduardo Sánchez ; Manuel Lama ; Ricardo Amorim 等
期刊名称：Journal of Interactive Media in Education
电子版ISSN：1365-893X
出版年度：2008
卷号：2008
期号：2
页码：1-17
DOI：10.5334/2008-21
出版社：Open University, Knowledge Media Institute
摘要：This paper describes how the Astronomy case study is modelled, created and executed, using a IMS LD ontology. The ontology was aimed at overcoming the expressiveness limitations of the IMS LD XML Schema by means of a taxonomy of concepts and a set of formally defined axioms. With regard to the authoring (creation) stage, the ontology has been used to enable the automatic validation of IMS LD documents in WebLD, a web authoring tool to create IMS LD Units of Learning. With regard to the execution stage, a service-oriented architecture was developed to allow the execution of IMS LD Units of Learning, whose learning processes have been modelled through Petri Nets.
关键词：IMS Learning Design; ontologies; authoring tools; execution engines; workflows; Petri nets; units of learning