Role-based access control (RBAC) models are becoming a de facto standard, greatly simplifying management and administration tasks. Organizational constraints were introduced (e.g.: mutually exclusive roles, cardinality, prerequisite roles) to reflect peculiarities of organizations. Thus, the number of rules is increasing and policies are becoming more and more complex: understanding and analyzi...

The costs of credit and accountability are good incentives for the Central Bank to increase independence. Independence of power and attention to economic policymaking in monetary decision-making can have a positive effect on the level of economic organization independence. The independent organization of the Central Bank has provided a plan for controlling inflation due to the importance of ind...

Recently, many organizations are investing a great amount to revamp their business policies in order to comply with the new regulations related to Sarbanes-Oxley. For organizations with large-scale business processes, maintaining those processes to meet the changing policies is a non-trivial problem. In this paper, we present an innovative process mapping methodology named Policy-Driven Process...

This work focuses on a cellular system scenario of a single base station broadcasting incoming files (or users) to multiple receivers over a time-varying channel. The basestation sets a price per receiver and per file to maximize its profit. The files may or may not enter the system depending on the price of service, the delay performance and their randomly determined valuations. Under this sce...