Enhancing Workflow Systems Resiliency by Using Delegation and Priority Concepts.

TitreEnhancing Workflow Systems Resiliency by Using Delegation and Priority Concepts.
Publication TypeJournal Article
Year of Publication2013
AuthorsBakkali, HEl
JournalJournal of Digital Information Management
Volume11
Pagination267 - 276
ISSN09727272
Mots-clésAccess control, Computer security, Computer systems – Research, Computer users, Delegation, Dynamic Access Control Constraints, Priority, Resiliency, Workflow management systems, Workflow Satisfiability Problem
Abstract

Enforcing dynamic access control constraints in workflow management systems (WFMS) is a very important requirement with regard to security issues. However, respecting those constraints may prohibit the completion of a workflow instance in the case of the lack of authorized users. Such situation is known in the literature as a WSP (Workflow Satisfiability Problem). The ability of a WFMS to use different methods to bypass a WSP situation is often seen as a resiliency property. In this work, we propose a new approach that aims to enhance the resiliency of a WFMS while meeting -at run time- the main workflow dynamic access control requirements. In fact, by using both delegation and priority concepts it is possible to find a user which is as suitable as possible to perform the current task instance with lesser security risks. [ABSTRACT FROM AUTHOR]

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