%I Springer %T Towards a Formal Verification Methodology for Collective Robotic Systems %P 54-70 %R 10.1007/978-3-642-34281-3_7 %N 7635 %B Formal Methods and Software Engineering %X We introduce a UML-based notation for graphically modeling systems? security aspects in a simple and intuitive way and a model-driven process that transforms graphical specifications of access control policies in XACML. These XACML policies are then translated in FACPL, a policy language with a formal semantics, and the resulting policies are evaluated by means of a Java-based software tool. %L eprints1573 %D 2012 %K Security, Model-driven development, Web engineering - Proceedings of 14th International Conference on Formal Engineering Methods (ICFEM) %A Edmond Gjondrekaj %A Michele Loreti %A Rosario Pugliese %A Francesco Tiezzi %A Carlo Pinciroli %A Manuele Brambilla %A Mauro Birattari %A Marco Dorigo %S Lecture Notes in Computer Science