Harmonization of Metadata Standards
Mikael Nilsson,
ProLearn,
Jan 29, 2008
This is a very good paper that surveys the obstacles to metadata harmonization in e-learning. Mikael Nilsson looks at five systems for identifying and describing learning resources: Learning Object Metadata (LOM), Dublin Core (DCMI), Resource Description Framework (RDF), Metadata Object Description Schema (MODS; used to encode MARC21 library records defined by the Library of Congress), and the MPEG-7 MDS used to define multimedia. The paper compares these very different specifications across a variety of dimensions, including structure, vocabulary, semantics, and value referencing. I fully endorse this paper; there's nothing I would question, and it even highlights some biases (such as "a strong recommendation for basing identification on URIs") that I share. This is a high-level paper, but fundamental and very clearly written. It is easily accessible to all readers who are willing to give it the time it deserves. PDF.
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