modeling in event b system and software engineering pdf

Modeling In Event B System And Software Engineering Pdf

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Safety cases are adopted in the certification process of many safety-critical systems. They justify why a system is safe and whether the design adequately incorporates safety requirements defined in a system requirement specification. The use of formal methods facilitates modelling and verification of safety-critical systems.

From Z to B and then Event-B: Assigning Proofs to Meaningful Programs

Skip to search form Skip to main content You are currently offline. Some features of the site may not work correctly. DOI: Abrial Published Computer Science. A practical text suitable for an introductory or advanced course in formal methods, this book presents a mathematical approach to modelling and designing systems using an extension of the B formal method: Event-B. Based on the idea of refinement, the author's systematic approach allows the user to construct models gradually and to facilitate a systematic reasoning method by means of proofs.

This content was uploaded by our users and we assume good faith they have the permission to share this book. If you own the copyright to this book and it is wrongfully on our website, we offer a simple DMCA procedure to remove your content from our site. Start by pressing the button below! This page intentionally left blank Modeling in Event-B A practical text suitable for an introductory or advanced cour This page intentionally left blank Modeling in Event-B A practical text suitable for an introductory or advanced course in formal methods, this book presents a mathematical approach to modeling and designing systems using an extension of the B formalism: Event-B. Readers will learn how to build models of programs and, more generally, discrete systems, but this is all done with practice in mind. The numerous examples provided arise from various sources of computer system developments, including sequential programs, concurrent programs, and electronic circuits.

Formalizing Hybrid Systems with Event-B

The B method is a method of software development based on B , a tool-supported formal method based on an abstract machine notation , used in the development of computer software. B is related to the Z notation also originated by Abrial and supports development of programming language code from specifications. It has robust, commercially available tool support for specification , design , proof and code generation. Compared to Z, B is slightly more low-level and more focused on refinement to code rather than just formal specification — hence it is easier to correctly implement a specification written in B than one in Z. In particular, there is good tool support for this.

This book represents the ultimate authority on Event-B, written by its creator. Readers will learn how to build models of programs and, more generally, discrete systems, but this is all done with practice in mind. The numerous examples provided arise from various sources of computer system developments, including sequential programs, concurrent programs and electronic circuits. The book also contains a large number of exercises and projects ranging in difficulty. Each of the examples included in the book has been proved using the Rodin Platform tool set, which is available free for download at www.

We have modelled parts of the ABZ automotive case study using the B-method. For the early phases of modelling we have used the classical B for software, while for proof we have used Event-B and Rodin. Moreover, for one particular style of modelling, the result can then be translated to superposition refinement with event extension in Event-B. Before conducting the proof, we have validated our models using model checking and animation with visualizations. The graphical visualizations were constructed using a new plugin VisB which helped uncover errors and transforms our model into an executable, interactive reference specification which can be examined by users without formal background. In this work we have used both classical B and Event-B as modelling languages with ProB and rodin for tool support.


A practical text suitable for an introductory or advanced course in formal methods, this book presents a mathematical approach to modelling and designing.


From Z to B and then Event-B: Assigning Proofs to Meaningful Programs

This paper contains the development of hybrid systems in Event-B and the Rodin Platform. It follows the seminal approach introduced at the turn of the century in Action Systems. Many examples illustrate our approach. Unable to display preview.

So, 30 years separate Z from Event-B. It is thus clear that I spent a significant time of my scientific professional life working with the same kind of subject in mind, roughly speaking specification languages. I do not know whether this kind of addiction is good or bad, but what I know is that I enjoyed it a lot. Unable to display preview. Download preview PDF.

Readers will learn how to build models of programs and, more generally, discrete systems, but this is all done with practice in mind. The numerous examples provided arise from various sources of computer systen developments, including se quential programs, concurrent programs, and electronic circuits The book also contains a large number of exercises and projects ranging in difficulty Each of the examples included in Che book has been proved using the Rodin Platforn toolsetwhichisavailablefreefordownloadatwww. Abra This publication is in copyright. Subject to statutory exception and to the provision of relevant collective licensing agreements, no reproduction of any part may take place without the written permission of Cambridge University Press First published in print format ISBN eBook NetLibrary ISBN Hardback Cambridge University Press has no responsibility for the persistence or accuracy of urls for external or third-party internet websites referred to in this publication, and does not guarantee that any content on such websites is, or will remain accurate or appropriate Contents Prologue: Faultless systems- ycs we can acknowledgments XX Introduction 1. Specifying the concurrent program 2 7.

Modeling in Event-B - System and Software Engineering

The development of distributed algorithms offers challenges in verifying that they meet their specifications. The correct-by-construction approach consists in developing a model of the algorithm before transforming this model into a program. This transformation can introduce errors that were not present in the model. The DistAlgo language is a high-level programming language for distributed algorithms. Its high-levelness makes DistAlgo closer to the mathematical notations of Event-B and improves the clarity of DistAlgo programs.

Modeling in Event-B: System and Software Engineering provides a comprehensive exposition of the Event-B approach for modeling and reasoning about systems. The mathematical language and the proof method of Event-B are introduced. Through a series of realistic case studies, the important modeling and reasoning concepts are explained. Many of these case studies are inspired from the author's industrial experience and include control systems, communications protocols, distributed algorithms and digital circuits. The book can be used for an introductory course on formal modeling and reasoning and can be used for an advanced course involving more complex data structures and automated proof. The book will serve as an excellent companion to the Rodin tool.

Объектив, скользнув по огромной площади, показал полукруглый вход в севильский парк Аюнтамьенто. На переднем плане возникли деревья. Парк был пуст. - Фильтр Х-одиннадцать уничтожен, - сообщил техник.  - У этого парня зверский аппетит. Смит начал говорить.

1.2.1 Modeling in Event-B: System and Software Engineering, J.-R. Abrial (2010)

Ключ к Цифровой крепости зашифрован и недоступен. - Ну разумеется! - Она только сейчас поняла смысл сказанного.  - Все смогут скачать, но никто не сможет воспользоваться. - Совершенно верно. Танкадо размахивает морковкой.

Event-B.org

 Ты блефуешь, Грег. - Вы этого не сделаете! - крикнул Хейл.

Лиланд Фонтейн решил, что с него довольно этого зрелища. - Выключите, - приказал.  - Выключите эту чертовщину.

 Никогда не забывай, Чед, что Большой Брат знает. Большой Брат. Бринкерхофф отказывался в это поверить.

Modeling in Event-B: System and Software Engineering
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