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Obligations are mandatory actions that users must perform, addressing access control requirements. To ensure that such obligations are implemented correctly, an automated and systematic testing approach is often recommended. One such approach is Model-Based Testing (MBT) that allows defining cost-effective testing strategies to support rigorous testing via automation. In this paper, we present MBT...
Aspect state machines (ASMs) are extended UML state machines that use stereotypes from a UML profile called AspectSM. In our previous experiments, we empirically evaluated ASMs from the perspectives of readability, comprehensibility, understand ability, modeling errors, and modeling effort and the results showed that ASMs are significantly better than the standard UML state machines for modeling robustness...
Delegation is an important dimension of security that plays a crucial role in the administration mechanism of access control policies. Delegation may be viewed as an exception made to an access control policy in which a user gets right to act on behalf of other users. This "meta-level" characteristic together with the complexity of delegation itself make it crucial to ensure the correct...
This paper presents a survey about the formal specification languages which are used to specify Real-time systems. Real time systems are critical systems such as nuclear missile system, auto pilot system etc. A minor fault in these systems can result into serious consequences. These consequences may comprise threat to human life. Therefore it is very vital to specify the system correctly. To achieve...
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