Navigating learning resources through linked data : A preliminary report on the re-design of organic.edunet

• Learning objects repositories have grown and matured in the last years, being currently a cornerstone for open education. Several current systems are offering metadata openly through mainstream harvesting protocols or providing standardized query interfaces. Also, the use of standardized vocabularies or ontologies is becoming more common to provide a degree of semantic interoperability. However, learning object metadata is typically not linked across repositories, and it is not providing a way to navigate by using other sources of data available on the Web. The linked open data (LOD) approach provides the framework for the evolution of learning object repositories into a more flexible system of sharing learning resource metadata. This paper describes how linked data has been integrated in the design and redesign of the export mechanisms of Organic.Edunet, a federation of learning repositories in the domain of organic agriculture that uses an RDF store and several ontologies to browse and search resources. The paper focuses on how the existing search and semantic browsing mechanisms can benefit from the use of LOD across repositories.

Subject headings

NATURVETENSKAP  -- Data- och informationsvetenskap (hsv//swe)

NATURAL SCIENCES  -- Computer and Information Sciences (hsv//eng)

Keyword

Learning objects

Linked data

Ontologies

Organic.edunet

Repositories

Publication and Content Type

ref (subject category)

kon (subject category)