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


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.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2006 IEEE. Published version deposited in accordance with the copyright policy of the publisher. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Faculty / Department / School: Historic - Faculty of Sciences - Department of Maths and Computing
Date Deposited: 09 Mar 2010 12:21
Last Modified: 12 Feb 2015 04:24
Uncontrolled Keywords: XML; authorisation; computer aided instruction; data privacy; groupware; learning systems; access controls; E-learning; RBAC; relational databases; revocation; role-based delegation
Fields of Research : 08 Information and Computing Sciences > 0806 Information Systems > 080602 Computer-Human Interaction
13 Education > 1301 Education Systems > 130103 Higher Education
08 Information and Computing Sciences > 0806 Information Systems > 080606 Global Information Systems
Socio-Economic Objective: C Society > 93 Education and Training > 9305 Education and Training Systems > 930502 Management of Education and Training Systems
Identification Number or DOI: 10.1109/TKDE.2008.132
URI: http://eprints.usq.edu.au/id/eprint/6308

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