Skip to Main content Skip to Navigation
Conference papers

Task Delegation Based Access Control Models for Workflow Systems

Khaled Gaaloul 1, 2 François Charoy 1
1 ECOO - Environment for cooperation
INRIA Lorraine, LORIA - Laboratoire Lorrain de Recherche en Informatique et ses Applications
Abstract : e-Government organisations are facilitated and conducted using workflow management systems. Role-based access control (RBAC) is recognised as an efficient access control model for large organisations. The application of RBAC in workflow systems cannot, however, grant permissions to users dynamically while business processes are being executed. We currently observe a move away from predefined strict workflow modelling towards approaches supporting flexibility on the organisational level. One specific approach is that of task delegation. Task delegation is a mechanism that supports organisational flexibility, and ensures delegation of authority in access control systems. In this paper, we propose a Task-oriented Access Control (TAC) model based on RBAC to address these requirements. We aim to reason about task from organisational perspectives and resources perspectives to analyse and specify authorisation constraints. Moreover, we present a fine grained access control protocol to support delegation based on the TAC model.
Document type :
Conference papers
Complete list of metadata

Cited literature [18 references]  Display  Hide  Download
Contributor : Khaled Gaaloul Connect in order to contact the contributor
Submitted on : Saturday, November 14, 2009 - 12:22:55 AM
Last modification on : Friday, February 4, 2022 - 3:31:12 AM
Long-term archiving on: : Thursday, September 23, 2010 - 10:26:12 AM


Files produced by the author(s)


  • HAL Id : inria-00431498, version 2



Khaled Gaaloul, François Charoy. Task Delegation Based Access Control Models for Workflow Systems. The 9th IFIP Conference on e-Business, e-Services, and e-Society, I3E 2009, Sep 2009, Nancy, France. ⟨inria-00431498v2⟩



Record views


Files downloads