With continuous growth in the number of information objects and the users that can access these objects, ensuring that access is compliant with company policies has become a big challenge. Role-based Access Control (RBAC) a policy-neutral access control model that serves as a bridge between academia and industry is probably the most suitable security model for commercial applications. Interestingly, role design determines RBAC's cost. When there are hundreds or thousands of users within an organization, with individual functions and responsibilities to be accurately reflected in terms of access permissions, only a well-defined role engineering process allows for significant savings of time and money while protecting data and systems. Among role engineering approaches, searching through access control systems to find de facto roles embedded in existing permissions is attracting increasing interest. The focus falls on role mining, which is applied data mining techniques to automate to the extent possible the role design task. This book explores existing role mining algorithms and offers insights into the automated role design approaches proposed in the literature. Alongside theory, this book acts as a practical guide for using role mining tools when implementing RBAC. Beside a comprehensive survey of role mining techniques deeply rooted in academic research, this book also provides a summary of the role-based approach, access control concepts and describes a typical role engineering process. Among the pioneering works on role mining, this book blends business elements with data mining theory, and thus further extends the applications of role mining into business practice. This makes it a useful guide for all academics, IT and business professionals.
This book provides a set of lectures for an intermediate course in Public economics devoted to four topics, in many elements related each other. The first one is the Economics of institutions and political economy, as a general framework to analyze the public intervention in modern economies. The second one is the Economics of Law, which is at the basis of the working of the exchange economy. The third one is the Economics of public services enterprises ownership and the fourth one is the Economics of the organization of public administration in providing public services, with particular reference to the National health care systems and to the local public municipalities. As the standard textbooks in the field usually do not treat within unitary and comprehensive terms these issues, the book would provide an attempt in this direction.
With continuous growth in the number of information objects and the users that can access these objects, ensuring that access is compliant with company policies has become a big challenge. Role-based Access Control (RBAC) OCo a policy-neutral access control model that serves as a bridge between academia and industry OCo is probably the most suitable security model for commercial applications. Interestingly, role design determines RBAC''s cost. When there are hundreds or thousands of users within an organization, with individual functions and responsibilities to be accurately reflected in terms of access permissions, only a well-defined role engineering process allows for significant savings of time and money while protecting data and systems. Among role engineering approaches, searching through access control systems to find de facto roles embedded in existing permissions is attracting increasing interest. The focus falls on role mining, which is applied data mining techniques to automate OCo to the extent possible OCo the role design task. This book explores existing role mining algorithms and offers insights into the automated role design approaches proposed in the literature. Alongside theory, this book acts as a practical guide for using role mining tools when implementing RBAC. Besides a comprehensive survey of role mining techniques deeply rooted in academic research, this book also provides a summary of the role-based approach, access control concepts and describes a typical role engineering process. Among the pioneering works on role mining, this book blends business elements with data mining theory, and thus further extends the applications of role mining into business practice. This makes it a useful guide for all academics, IT and business professionals.
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