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Effective collaboration with information sharing in virtual universities

Wang, Hua and Zhang, Yanchun and Cao, Jinli (2009) Effective collaboration with information sharing in virtual universities. IEEE Transactions on Knowledge and Data Engineering, 21 (6). pp. 840-853. ISSN 1041-4347

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Abstract

A global education system, as a key area in future IT, has fostered developers to provide various learning systems with low cost. While a variety of e-learning advantages has been recognized for a long time and many advances in e-learning systems have been implemented, the needs for effective information sharing in a secure manner have to date been largely ignored, especially for virtual university collaborative environments. Information sharing of virtual universities usually occurs in broad, highly dynamic network-based environments, and formally accessing the resources in a secure manner poses a difficult and vital challenge. This paper aims to build a new rule-based framework to identify and address issues of sharing in virtual university environments through role-based access control (RBAC) management. The framework includes a role-based group delegation granting model, group delegation revocation model, authorization granting, and authorization revocation. We analyze various revocations and the impact of revocations on role hierarchies. The implementation with XML-based tools demonstrates the feasibility of the framework and authorization methods. Finally, the current proposal is compared with other related work.

Item Type: Article
Uncontrolled Keywords: ResPubID19216, e-learning, RBAC, role-based delegation, revocation
Subjects: FOR Classification > 0806 Information Systems
FOR Classification > 1303 Specialist Studies in Education
Faculty/School/Research Centre/Department > School of Engineering and Science
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Depositing User: VUIR
Date Deposited: 23 Sep 2011 01:56
Last Modified: 23 Sep 2011 01:56
URI: http://vuir.vu.edu.au/id/eprint/4673
DOI: 10.1109/TKDE.2008.132
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Citations in Scopus: 8 - View on Scopus

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