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Dept Comp Sci & Comp Eng
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La Trobe University
Victoria 3086
AUSTRALIA
Tel: +61 3 9479 1107
Fax: +61 3 9479 3060
Email: info
@cs.latrobe.edu.au
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Research Publications - Abstract
Department of Computer Science & Computer Engineering
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Cao, J., Wang, H., and Zhang, Y. |
| Publication Year: |
2009 |
| Paper Title: |
Effective collaboration with information sharing in virtual universities |
| Journal Name: |
IEEE Transactions on Knowledge and Data Engineering |
| Volume: |
21/6 |
| Pages: |
840 - 853 |
| 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.
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