01505nas a2200193   4500008004100000245008400041210006900125260000900194300001400203490000700217520083600224653001501060653003901075653001301114653001501127653003601142100001601178856011701194       2013                        eng d00aEnhancing workflow systems resiliency by using delegation and priority concepts0 aEnhancing workflow systems resiliency by using delegation and pr  c2013  a267 - 2760 v113 aEnforcing 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.10aDelegation10aDynamic access control constraints10aPriority10aResiliency10aWorkflow Satisfiability Problem1 aBakkali, El  uhttp://www.scopus.com/inward/record.url?eid=2-s2.0-84888373794&partnerID=40&md5=fedc10e4bf4acaa3224e1a9dfa459fc0