System Design From Provably Correct Constructs

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System Design From Provably Correct Constructs

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Author : James Martin
language : en
Publisher: Prentice Hall
Release Date : 1985

System Design From Provably Correct Constructs written by James Martin and has been published by Prentice Hall this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Computers categories.

Automating Systems Development

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Author : David R. Benyon
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

Automating Systems Development written by David R. Benyon and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Computers categories.

1 INTRODUCTION These proceedings are the result of a conference on Automating Systems Development held at Leicester Polytechnic, England on 14 to 16 April 1987. The conference was attended by over 170 delegates from industry and academia and it represents a comprehensive review of the state of the art of the use of the computer based tools for the analysis, design and construction of Information Systems (IS). Two parallel streams ran throughout the conference. The academic, or research, papers were the fruit of British, European and Canadian research, with some of the papers reflecting UK Government funded Alvey or European ESPRIT research projects. Two important touchstones guided the selection of academic papers. Firstly, they should be primarily concerned with system, rather than program, development. Secondly, they should be easily accessible to delegates and readers. We felt that formal mathematical papers had plenty of other opportunities for airing and publication. The second stream was the applied programme; a set of formal presentations given by leading software vendors and consultancies. It is clear that many advances in systems development are actually applied, rather than re search led. Thus it was important for delegates to hear how leading edge companies view the State of the Art. This was supported by a small exhibi tion area where certain vendors demonstrated the software they had intro duced in the formal presentation.

Meanings And Prototypes

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Author : S.L. Tsohatzidis
language : en
Publisher: Routledge
Release Date : 2014-02-03

Meanings And Prototypes written by S.L. Tsohatzidis and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-02-03 with Language Arts & Disciplines categories.

There are fewer distinctions in any language than there are distinct things in the universe. If, therefore, languages are ways of representing the universe, a primary function of their elements must be to allow the much more varied kinds of elements out of which the universe is made to be categorized in specific ways. A prototype approach to linguistic categories is a particular way of answering the question of how this categorization operates. It involves two claims. First, that linguistic categorization exploits principles that are not specific to language but characterize most, if not all, processes of cognition. Secondly, that a basic principle by which cognitive and linguistic categories are organized is the prototype principle, which assigns elements to a category not because they exemplify properties that are absolutely required of each one of its members, but because they exhibit, in varying degrees, certain types of similarity with a particular category member which has been established as the best example (or: prototype) of its kind. The development of the prototype approach into a satisfactory body of theory obviously requires both that its empirical base be enriched, and that its conceptual foundations be clarified. These are the areas where this volume, in its 26 essays, makes original contributions. The first two parts contain discussions in which various kinds of linguistic phenomena are analysed in ways that make essential use of prototype notions. The last two parts contain discussions in which prototype notions themselves become the object, rather than the instrument, of analytical scrutiny.

Research And Development In Expert Systems V

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Author : British Computer Society. Specialist Group on Expert Systems. Technical Conference
language : en
Publisher: CUP Archive
Release Date : 1989-02-09

Research And Development In Expert Systems V written by British Computer Society. Specialist Group on Expert Systems. Technical Conference and has been published by CUP Archive this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989-02-09 with Computers categories.

Contains papers presented at "Expert Systems 88", the eighth annual conference of the British Computer Society Specialist Group on Expert Systems, held in Brighton in December 1988. Covers many aspects of current work, in particular, theoretical topics, practical techniques and real applications of expert systems (a wide spectrum of commercial and industrial interest). The theme of the 1988 conference was "integrating with mainstream software development." No index. Annotation copyrighted by Book News, Inc., Portland, OR

Provably Correct Systems

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Author : Mike Hinchey
language : en
Publisher: Springer
Release Date : 2017-03-01

Provably Correct Systems written by Mike Hinchey and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-03-01 with Mathematics categories.

As computers increasingly control the systems and services we depend upon within our daily lives like transport, communications, and the media, ensuring these systems function correctly is of utmost importance. This book consists of twelve chapters and one historical account that were presented at a workshop in London in 2015, marking the 25th anniversary of the European ESPRIT Basic Research project ‘ProCoS’ (Provably Correct Systems). The ProCoS I and II projects pioneered and accelerated the automation of verification techniques, resulting in a wide range of applications within many trades and sectors such as aerospace, electronics, communications, and retail. The following topics are covered: An historical account of the ProCoS project Hybrid Systems Correctness of Concurrent Algorithms Interfaces and Linking Automatic Verification Run-time Assertions Checking Formal and Semi-Formal Methods Provably Correct Systems provides researchers, designers and engineers with a complete overview of the ProCoS initiative, past and present, and explores current developments and perspectives within the field.

Studies Of Software Design

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Author : David Alex Lamb
language : en
Publisher: Springer Science & Business Media
Release Date : 1996-05-15

Studies Of Software Design written by David Alex Lamb and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996-05-15 with Computers categories.

This book contains a refereed collection of thoroughly revised full papers based on the contributions accepted for presentation at the International Workshop on Studies of Software Design, held in conjunction with the 1993 International Conference on Software Engineering, ICSE'93, in Baltimore, Maryland, in May 1993. The emphasis of the 13 papers included is on methods for studying, analyzing, and comparing designs and design methods; the topical focus is primarily on the software architecture level of design and on techniques suitable for dealing with large software systems. The book is organized in sections on architectures, tools, and design methods and opens with a detailed introduction by the volume editor.

Routledge Library Editions Linguistics

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Author : Various
language : en
Publisher: Routledge
Release Date : 2021-12-02

Routledge Library Editions Linguistics written by Various and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-12-02 with Language Arts & Disciplines categories.

Routledge Library Editions: Linguistics brings together as one set, mini-sets, or individual volumes, a series of previously out-of-print classics from a variety of academic imprints. With titles ranging from Applied Linguistics and Language Learning to Experimental Psycholinguistics and Sociolinguistics Today: International Perspectives, this set provides in one place a wealth of important reference sources from a wide range of authors expert in the field.

Software Maintenance A Management Perspective

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Author : Phaneendra Nath Vellanky
language : en
Publisher: Universal-Publishers
Release Date : 2007-10-23

Software Maintenance A Management Perspective written by Phaneendra Nath Vellanky and has been published by Universal-Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-10-23 with categories.

Computer systems play an important role in our society. Software drives those systems. Massive investments of time and resources are made in developing and implementing these systems. Maintenance is inevitable. It is hard and costly. Considerable resources are required to keep the systems active and dependable. We cannot maintain software unless maintainability characters are built into the products and processes. There is an urgent need to reinforce software development practices based on quality and reliability principles. Though maintenance is a mini development lifecycle, it has its own problems. Maintenance issues need corresponding tools and techniques to address them. Software professionals are key players in maintenance. While development is an art and science, maintenance is a craft. We need to develop maintenance personnel to master this craft. Technology impact is very high in systems world today. We can no longer conduct business in the way we did before. That calls for reengineering systems and software. Even reengineered software needs maintenance, soon after its implementation. We have to take business knowledge, procedures, and data into the newly reengineered world. Software maintenance people can play an important role in this migration process. Software technology is moving into global and distributed networking environments. Client/server systems and object-orientation are on their way. Massively parallel processing systems and networking resources are changing database services into corporate data warehouses. Software engineering environments, rapid application development tools are changing the way we used to develop and maintain software. Software maintenance is moving from code maintenance to design maintenance, even onto specification maintenance. Modifications today are made at specification level, regenating the software components, testing and integrating them with the system. Eventually software maintenance has to manage the evolution and evolutionary characteristics of software systems. Software professionals have to maintain not only the software, but the momentum of change in systems and software. In this study, we observe various issues, tools and techniques, and the emerging trends in software technology with particular reference to maintenance. We are not searching for specific solutions. We are identifying issues and finding ways to manage them, live with them, and control their negative impact.

Database Dreaming Volume Ii

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Author : C. J. Date
language : en
Publisher: Technics Publications
Release Date : 2022-02-11

Database Dreaming Volume Ii written by C. J. Date and has been published by Technics Publications this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-02-11 with Computers categories.

Along with its companion volume (Database Dreaming Volume I), this book offers a collection of essays on the general topic of relational databases and relational database technology. Most of those essays, though not all, have been published before, but only in journals and magazines that are now hard to find or in books that are now out of print. Here’s a lightly edited excerpt from the preface (so this is the author speaking): I went back and reviewed all of those early essays, looking for ones that seemed worth reviving (or, rather, revising and reviving) at this time. Of course, some of them definitely weren’t! However, out of a total of around 130 original papers, I did find some 20 or so that seemed to me worth preserving and hadn’t already been incorporated in, or superseded by, more recent books of mine. So I tracked down the original versions of those 20 or so papers and set to work. When I was done, though, I found I had somewhere in excess of 600 pages on my hands—too much, in my view, for just one book, and so I split them across two separate volumes. Highlights of the present volume include a detailed explanation of the multiple assignment operator and why it’s so essential; an investigation into why object and database technologies are so much more different than they’re often made out to be; a critical examination of SQL’s support for pointers (“references”); a tutorial on the counterintuitive (but crucial) concept of tables with no columns; and an annotated and extended debate between the author and E. F. Codd, inventor of the relational model, on the subject of nulls and three-valued logic.

Formal Methods In Standards

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Author : Clive L.N. Ruggles
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

Formal Methods In Standards written by Clive L.N. Ruggles and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Computers categories.

3. 1 What are formal methods? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 3. 2 A survey of formal methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 3. 2. 1 FDTs and FSLs for sequential software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 3. 2. 1. 1 VDM (Vienna Development Method). . . . . . . . . . . . . . . . . . . . . 19 3. 2. 1. 2 Z. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 3. 2. 1. 3 me too . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 3. 2. 1. 4 HOS and AXES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 3. 2. 1. 5 Gist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 3. 2. 1. 6 Clear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 3. 2. 1. 7 OBJ. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 3. 2. 1. 8 ACT ONE and ACT TWO. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 3. 2. 1. 9 CIP-L. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 3. 2. 1. 10 LPG. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 3. 2. 1. 11 Larch. . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 3. 2. 1. 12 Logic languages-the Prolog family. . . . . . . . . . . . . . . . . . . 22 3. 2. 1. 13 Functional languages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 3. 2. 2 FDTs and FSLs for concurrent software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 3. 2. 2. 1 LOTOS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 3. 2. 2. 2 Estelle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 3. 2. 2. 3 SDL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 3. 2. 2. 4 ASN. l . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 3. 2. 2. 5 TTCN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 3. 2. 2. 6 Gypsy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 3. 2. 3 Graphical formalisms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 3. 2. 3. 1 Petri nets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 3. 2. 3. 2 Higraphs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 3. 2. 4 Less formal methods and notations . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . 26 3. 2. 4. 1 SADT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 3. 2. 4. 2 Structured Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 3. 2. 4. 3 SSADM and LSDM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 3. 2. 4. 4 JSPandJSD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 3. 2. 4. 5 HDM and the SPECIAL language . . . . . . . . . . . . . . . . . . . . . . . . . . 27 3. 2. 4. 6 Structured analysis and design of real-time systems. . 27 3. 3 Support tools for FDTs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .