Java Software Development with Event B

Java Software Development with Event B PDF Author: Néstor Cataño Collazos
Publisher: Morgan & Claypool Publishers
ISBN: 1681736888
Category : Computers
Languages : en
Pages : 101

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Book Description
The cost of fixing software design flaws after the completion of a software product is so high that it is vital to come up with ways to detect software design flaws in the early stages of software development, for instance, during the software requirements, the analysis activity, or during software design, before coding starts. It is not uncommon that software requirements are ambiguous or contradict each other. Ambiguity is exacerbated by the fact that software requirements are typically written in a natural language, which is not tied to any formal semantics. A palliative to the ambiguity of software requirements is to restrict their syntax to boilerplates, textual templates with placeholders. However, as informal requirements do not enjoy any particular semantics, no essential properties about them (or about the system they attempt to describe) can be proven easily. Formal methods are an alternative to address this problem. They offer a range of mathematical techniques and mathematical tools to validate software requirements in the early stages of software development. This book is a living proof of the use of formal methods to develop software. The particular formalisms that we use are EVENT B and refinement calculus. In short: (i) software requirements as written as User Stories; (ii) they are ported to formal specifications; (iii) they are refined as desired; (iv) they are implemented in the form of a prototype; and finally (v) they are tested for inconsistencies. If some unit-test fails, then informal as well as formal specifications of the software system are revisited and evolved. This book presents a case study of software development of a chat system with EVENT B and a case study of formal proof of properties of a social network.

Java Software Development with Event B

Java Software Development with Event B PDF Author: Néstor Cataño Collazos
Publisher: Morgan & Claypool Publishers
ISBN: 1681736888
Category : Computers
Languages : en
Pages : 101

Get Book Here

Book Description
The cost of fixing software design flaws after the completion of a software product is so high that it is vital to come up with ways to detect software design flaws in the early stages of software development, for instance, during the software requirements, the analysis activity, or during software design, before coding starts. It is not uncommon that software requirements are ambiguous or contradict each other. Ambiguity is exacerbated by the fact that software requirements are typically written in a natural language, which is not tied to any formal semantics. A palliative to the ambiguity of software requirements is to restrict their syntax to boilerplates, textual templates with placeholders. However, as informal requirements do not enjoy any particular semantics, no essential properties about them (or about the system they attempt to describe) can be proven easily. Formal methods are an alternative to address this problem. They offer a range of mathematical techniques and mathematical tools to validate software requirements in the early stages of software development. This book is a living proof of the use of formal methods to develop software. The particular formalisms that we use are EVENT B and refinement calculus. In short: (i) software requirements as written as User Stories; (ii) they are ported to formal specifications; (iii) they are refined as desired; (iv) they are implemented in the form of a prototype; and finally (v) they are tested for inconsistencies. If some unit-test fails, then informal as well as formal specifications of the software system are revisited and evolved. This book presents a case study of software development of a chat system with EVENT B and a case study of formal proof of properties of a social network.

NASA Formal Methods

NASA Formal Methods PDF Author: Sanjai Rayadurgam
Publisher: Springer
ISBN: 3319406485
Category : Computers
Languages : en
Pages : 402

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Book Description
This book constitutes the proceedings of the 8th International Symposium on NASA Formal Methods, NFM 2016, held in Minneapolis, MN, USA, in June 2016. The 19 full and 10 short papers presented in this volume were carefully reviewed and selected from 70 submissions. The papers were organized in topical sections named: requirements and architectures; testing and run-time enforcement; theorem proving and proofs; application of formal methods; code generation and synthesis; model checking and verification; and correctness and certification.

Formal Methods Teaching

Formal Methods Teaching PDF Author: Brijesh Dongol
Publisher: Springer Nature
ISBN: 3030324419
Category : Mathematics
Languages : en
Pages : 253

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Book Description
This book constitutes the refereed proceedings of the Third International Workshop and Tutorial, FMTea 2019, Held as Part of the Third World Congress on Formal Methods, FM 2019, Porto, Portugal, October 2019. The 14 full papers presented together with 3 abstract papers were carefully reviewed and selected from 22 submissions. The papers are organized in topical sections named: Tutorial lectures; Teaching Program Verification; Teaching Program Development; and Effective Teaching Techniques.

 PDF Author:
Publisher: IOS Press
ISBN:
Category :
Languages : en
Pages : 10439

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Book Description


Theories of Programming and Formal Methods

Theories of Programming and Formal Methods PDF Author: Zhiming Liu
Publisher: Springer
ISBN: 3642396984
Category : Computers
Languages : en
Pages : 422

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Book Description
This Festschrift volume, dedicated to He Jifeng on the occasion of his 70th birthday in September 2013, includes 24 refereed papers by leading researchers, current and former colleagues, who congratulated at a celebratory symposium held in Shanghai, China, in the course of the 10th International Colloquium on Theoretical Aspects of Computing, ICTAC 2013. The papers cover a broad spectrum of subjects, from foundational and theoretical topics to programs and systems issues and to applications, comprising formal methods, software and systems modeling, semantics, laws of programming, specification and verification, as well as logics. He Jifeng is known for his seminal work in the theories of programming and formal methods for software engineering. He is particularly associated with Unifying Theories of Programming (UTP) , the theory of data refinement and the laws of programming, and the rCOS formal method for object and component system construction. His book on UTP with Tony Hoare has been widely read and followed by a large number of researchers, and it has been used in many postgraduate courses. He was a senior researcher at Oxford during 1984-1998, and then a senior research fellow at the United Nations University International Institute for Software Technology (UNU-IIST) in Macau during 1998-2005. He has been a professor and currently the Dean of the Institute of Software Engineering at East China Normal University, Shanghai, China. In 2005, He Jifeng was elected as an academician to the Chinese Academy of Sciences. He also received an honorary doctorate from the University of York. He won a number of prestigious science and technology awards, including a 2nd prize of Natural Science Award from the State Council of China, a 1st prize of Natural Science Award from the Ministry of Education of China, a 1st prize of Technology Innovation from the Ministry of Electronic Industry, and a number awards from Shanghai government.

Java Programming

Java Programming PDF Author: Gary B. Shelly
Publisher:
ISBN: 9780789568335
Category : Computers
Languages : en
Pages : 1012

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Book Description
This new edition employs the Shelly Cashman Series' proven step-by-step approach to learning, presenting difficult Java programming concepts in a straightforward and exciting way! The new layout and design of the book make it easy for students to stay on track, while the real-world examples keep students interested. Every chapter has been rewritten to include all new programming examples as well as additional conceptual coverage, stressing the fundamentals of producing well-designed programs.

Formal Methods Applied to Complex Systems

Formal Methods Applied to Complex Systems PDF Author: Jean-Louis Boulanger
Publisher: John Wiley & Sons
ISBN: 1119002680
Category : Computers
Languages : en
Pages : 496

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Book Description
This book presents real-world examples of formal techniques in an industrial context. It covers formal methods such as SCADE and/or the B Method, in various fields such as railways, aeronautics, and the automotive industry. The purpose of this book is to present a summary of experience on the use of “formal methods” (based on formal techniques such as proof, abstract interpretation and model-checking) in industrial examples of complex systems, based on the experience of people currently involved in the creation and assessment of safety critical system software. The involvement of people from within the industry allows the authors to avoid the usual confidentiality problems which can arise and thus enables them to supply new useful information (photos, architecture plans, real examples, etc.).

Symbolic Execution and Quantitative Reasoning

Symbolic Execution and Quantitative Reasoning PDF Author: Corina S. Păsăreanu
Publisher: Springer Nature
ISBN: 3031025512
Category : Technology & Engineering
Languages : en
Pages : 65

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Book Description
This book reviews recent advances in symbolic execution and its probabilistic variant and discusses how they can be used to ensure the safety and security of software systems. Symbolic execution is a systematic program analysis technique which explores multiple program behaviors all at once by collecting and solving symbolic constraints collected from the branching conditions in the program. The obtained solutions can be used as test inputs that execute feasible program paths. Symbolic execution has found many applications in various domains, such as security, smartphone applications, operating systems, databases, and more recently deep neural networks, uncovering subtle errors and unknown vulnerabilities. We review here the technique has also been extended to reason about algorithmic complexity and resource consumption. Furthermore, symbolic execution has been recently extended with probabilistic reasoning, allowing one to reason about quantitative properties of software systems. The approach computes the conditions to reach target program events of interest and uses model counting to quantify the fraction of the input domain satisfying these conditions thus computing the probability of event occurrence. This probabilistic information can be used for example to compute the reliability of an aircraft controller under different wind conditions (modeled probabilistically) or to quantify the leakage of sensitive data in a software system, using information theory metrics such as Shannon entropy. This book is intended for students and software engineers who are interested in advanced techniques for testing and verifying software systems.

Innovative Teaching Strategies and New Learning Paradigms in Computer Programming

Innovative Teaching Strategies and New Learning Paradigms in Computer Programming PDF Author: Ricardo Queirós
Publisher: IGI Global
ISBN: 1466673052
Category : Education
Languages : en
Pages : 339

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Book Description
Courses in computer programming combine a number of different concepts, from general problem-solving to mathematical precepts such as algorithms and computational intelligence. Due to the complex nature of computer science education, teaching the novice programmer can be a challenge. Innovative Teaching Strategies and New Learning Paradigms in Computer Programming brings together pedagogical and technological methods to address the recent challenges that have developed in computer programming courses. Focusing on educational tools, computer science concepts, and educational design, this book is an essential reference source for teachers, practitioners, and scholars interested in improving the success rate of students.

Software Engineering and Algorithms

Software Engineering and Algorithms PDF Author: Radek Silhavy
Publisher: Springer Nature
ISBN: 3030774422
Category : Technology & Engineering
Languages : en
Pages : 755

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Book Description
This book constitutes the refereed proceedings of the Software Engineering and Algorithms section of the 10th Computer Science On-line Conference 2021 (CSOC 2021), held on-line in April 2021. Software engineering research and its applications to intelligent algorithms take an essential role in computer science research. In this book, modern research methods, application of machine and statistical learning in the software engineering research are presented.