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Considering the timed properties between the interactions of Web services, we model the Web services with timed properties formally and propose a method for detecting mismatch of time-aware Web services based on Satisfiability Modulo Theories (SMT) in this paper. The issue of detecting mismatch of Web services can be transformed into the problem of existence model checking whether a deadlock is reachable...
Recently, probabilistic systems have been widely used. People have drawn attention to counterexample generation for probabilistic system model checking. Current works are mainly focusing on the counterexample generation for Markov chains. Probabilistic timed automata (PTA) is the extension of Markov chain with non-determinism and system clocks. This paper focuses on counterexample representation while...
The main method of model checking based on LTL is constructing a Büchi automata by system model and a Büchi automata equaling with the LTL denied form, and then checking the automata's acceptive language is empty or not. The idea of verifying Web Services Composition is modeling Web Services Composition by Colored Petri Net, and then using the modeling checking technique to verifying the model. It...
Currently, formal methods are the mainstream methods of cryptographic protocol analysis. Typically, these most used approaches for the protocols analysis do not take time into account, and this choice simplifies the analysis. However, cryptographic protocols like distributed programs in general are sensitive to the passage of time. A method for the protocols that are aware of timing aspects is presented...
As a new kind of distributed computing paradigm, web services have been paid more and more attention in recent years. The idea of software as a service is accepted by more and more people. Regarding the web services composition process as a software development process, in this paper we consider web services composition from the view of software architecture, which can control the layout of the whole...
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