Access control schemes come in all shapes and sizes, which makes choosing the right one for a particular application a challenge. Yet today’s techniques for comparing access control schemes completely ignore the setting in which the scheme is to be deployed. In this paper, we present a formal framework for comparing access control schemes with respect to a particular application. The analyst’s ...

Background & Aim: One of the basic and important needs of hemodialysis patients is vascular access. Nursing students as members of the health team and future nurses, play an essential role in the safety management of hemodialysis patients and therefore, their training is important to support patient safety. Today, evidence-based education with the objective of explicit and rational use of the b...

A Virtual Organization (VO) consists of some real organizations with common interests, which aims to provide inter organizational associations to reach some common goals by sharing their resources with each other. Providing security mechanisms, and especially a suitable access control mechanism, which enforces the defined security policy is a necessary requirement in VOs. Since VO is a complex ...

While Mandatory Access Controls (MAC) are appropriate for multilevel secure military applications, Discretionary Access Controls (DAC) are often perceived as meeting the security processing needs of industry and civilian government. This paper argues that reliance on DAC as the principal method of access control is unfounded and inappropriate for many commercial and civilian government organiza...

2 Abstract Role-based access control (RBAC) is a promising alternative to traditional discretionary and mandatory access controls. In RBAC permissions are associated with roles, and users are made members of appropriate roles thereby acquiring the roles' permissions. In this paper we formally show that lattice-based mandatory access controls can be enforced by appropriate connguration of RBAC c...