@article {9268371220130801,
	title = {Enhancing Workflow Systems Resiliency by Using Delegation and Priority Concepts.},
	journal = {Journal of Digital Information Management},
	volume = {11},
	number = {4},
	year = {2013},
	pages = {267 - 276},
	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]},
	keywords = {Access control, Computer security, Computer systems {\textendash} Research, Computer users, Delegation, Dynamic Access Control Constraints, Priority, Resiliency, Workflow management systems, Workflow Satisfiability Problem},
	issn = {09727272},
	url = {http://search.ebscohost.com/login.aspx?direct=true\&db=iih\&AN=92683712\&site=ehost-live},
	author = {Bakkali, Hanan El}
}
