constraints, each organization defines its own access control schema exhibiting heterogeneity in organizational rules and policies …. An Extensible Access Control Markup Language (XACML)-based framework, Hierarchy Similarity Analyser (HSA), is proposed … which fine-grains access control policies of disparate healthcare organizations to achieve interoperable and secured sharing …

access control and data de-identification techniques in order to provide a powerful system. The aim of this system is to …

offering an attribute-based access control method and time-limited attributes providing users' time-limited membership in cloud …

attention. The security solutions at the application level focus on access control which cannot alone ensure the confidentiality … and integrity of information. The solution proposed in this paper consists on a hybrid model that combines access control …

potentially renders the access control models inconsistent and creates security flaws. This paper proposes modeling Role Based … Access Control (RBAC) models of these software using the B language and re-evaluating the consistency of the models following …