Title :
ROSA: a repository of objects with semantic access for e-learning
Author :
Porto, Fábio ; Moura, A.Md.C. ; Da Silva, Fabio José Coutinho
Author_Institution :
Dept. of Comput. Eng., Mil. Inst. of Eng., Rio de Janeiro, Brazil
Abstract :
Learning content management systems (LCMS) supports e-learning applications with storage and efficient access for e-learning objects (LO)s. ROSA is a LCMS built as a semantic layer on the top of an XML native DBMS. In this paper, we present ROSA data model designed as an extension to RDF data model with ordered collections and relationship properties and cardinalities. An algebra is proposed with operations supporting queries over LO metadata and navigation through LO conceptual maps. Finally, the system implements Web semantic technology based on a formal data model tailored for an efficient storage and access of e-learning resources.
Keywords :
XML; content management; data models; distance learning; semantic Web; RDF data model; ROSA data model; Web semantic technology; XML native DBMS; e-learning; learning content management systems; Algebra; Content management; Data models; Database languages; Electronic learning; Material storage; Military computing; Navigation; Resource description framework; XML;
Conference_Titel :
Database Engineering and Applications Symposium, 2004. IDEAS '04. Proceedings. International
Print_ISBN :
0-7695-2168-1
DOI :
10.1109/IDEAS.2004.1319827
