This paper surveys various formal approaches that could be used to facilitate the development of the train control system described in BART case study. This system is interesting because train control must take into account complex behaviors, positional uncertainties, noise, continuous aspects, and a prede ned computational architecture. The approaches discussed are works in progress and are no...

Electronic commerce became a buzzword when electronic networks gained popularity, in particular of course due to the in-ternet. The security problem increases rapidly now that computer systems become more open. Most research on electronic commerce, and electronic data interchange in general, has focussed on technical instead of organizational problems, such as value added networks, trusted thir...

Embedded control systems typically comprise continuous control laws combined with discrete mode logic. These systems are modeled using a hybrid automaton formalism, which is obtained by combining the discrete transition system formalism with continuous dynamical systems. This paper develops automated analysis techniques for asserting correctness of hybrid system designs. Our approach is based o...

In this paper, we apply automatic tools to the verification of interaction protocols of Web services described in OWL-S. Specifically, we propose a modeling procedure that preserves the control flow and the data flow of OWL-S Process Models. The result of our work provides complete modeling and verification of OWL-S Process Models.

In Formal methods for industrial applications: specifying and programming the steam boiler control,

The demands placed on programmers by the needs of safety-critical systems mandate the use of formal methods, supported by an integrated toolkit, throughout software development. Many formal speciication, design and veriication techniques have been proposed in the past. As the next step in the maturation of these techniques we are aiming to integrate previously disparate methods. Our overall met...

family planning is programming about future of reproductive reproduction. the main aim of this research was to compare the efficacy of family planning education by individual education in residential place and by health system education. in this quazi-experimental study, 120 married women who did not use any contraceptive for purpose of family planning, don’t have intend to be pregnant, were ra...

Music notation includes a specification of control flow, which governs the order in which the score is read using constructs such as repeats and endings. Music theory provides only an informal description of control flow notation and its interpretation, but interactive music systems need unambiguous models of the relationships between the static score and its performance. A framework is introdu...

This paper argues that adaptive techniques in processor architecture should be designed using formal feedback-control theory. We use the derivation of a controller for cache decay—a technique for leakage-energy savings—to illustrate the process of formal feedback-control design and to show the benefits of feedback control. Control theory provides a powerful framework that simplifies the task of...