Today, many governments tend to propose e-services to their citizens. However, implementing an eGovernment environment shall face up to several security challenges including integrating security requirements coming from multiple stakeholders. In this article, we analyze the conflicts that can occur between eGovernment security requirements. Since these security requirements can contain both aut...

extension of the building advance-sale contracts on the one hand, and inadequacy of the provisions of the civil code on protection of  building advance-buyers before making its completion, on the other, consequently causing many problems for people in the community (society), has forced the legislature to pass the building advance-sale code in 2010. the parties of these contracts are called adv...

Deontic logic is characterized by the distinction between the actual and the ideal. In this article we discuss the situation where the actual deviates from the ideal, where obligations are violated. Nonmonotonic logics can be very helpful for the formalization of deontic reasoning, in particular to infer moral cues. It has been argued that the problems related to violated obligations, e.g. the ...

The application of automatic theorem provers to discharge proof obligations is necessary to apply formal methods in an efficient manner. Tools supporting formal methods, such as Atelier B, generate proof obligations fully automatically. Consequently, such proof obligations are often cluttered with information that is irrelevant to establish their validity. We present iapa, an “Interface to Auto...

Even if, at first sight, deciding whether to respect obligations and coordinating cooperation seems two unrelated behaviors, they are both grounded in the social rationality of agents: in fact, they depend on the ability of predicting the actions of other agents. In this paper, we present a proposal for managing anticipatory coordination, which is used to regulate the autonomy of and to control...

We show that in modeling social interaction, particularly dialogue, the attitude of obligation can be a useful adjunct to the popularly considered attitudes of belief, goal, and intention and their mutual and shared counterparts. In particular, we show how discourse obligations can be used to account in a natural manner for the connection between a question and its answer in dialogue and how ob...

Software development in B and Event-B generates proof obligations that have to be discharged using theorem provers. The cost of such developments depends directly on the degree of automation and e ciency of theorem proving techniques for the logics in which these lemmas are expressed. This paper presents and formalizes an approach to transform a class of proof obligations essentially similar to...