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2006

Workflow authorisation in mediator-free environments

13 years 12 months ago
Workflow authorisation in mediator-free environments
: WorkFlow Management Systems (WFMS) coordinate and streamline business processes. Acquiring workflow authorisations and managing workflow authorisation constraints is achallengingproblem. CurrentWFMSsassumeacentralisedglobalworkflowauthorisationmodel. In this paper, we propose a distributed workflow authorisation model with no central authorisation manager for a mediator-free environment. We provide an on-demand task discovery protocol that enables domains to discover tasks available in other domains. We formulate the workflow authorisation problem as a constraint satisfaction problem to select access paths that satisfy all the workflow authorisation constraints. We propose the Workflow MinimalAuthorisation Problem (WMAP),whichselectsminimalauthorisationsrequiredtoexecutetheworkflowtasks. Inaddition, we investigate access path overlaps to allow tasks in the same session to share authorisations and we present the Workflow Minimal Authorisation Problem with path Overlaps (WMAPO). Finall...
Mohamed Shehab, Elisa Bertino, Arif Ghafoor
Added 13 Dec 2010
Updated 13 Dec 2010
Type Journal
Year 2006
Where IJSN
Authors Mohamed Shehab, Elisa Bertino, Arif Ghafoor
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