Algebraic Specifications in Software Engineering: An Introduction by Ivo Van HorebeekAlgebraic Specifications in Software Engineering: An Introduction by Ivo Van Horebeek

Algebraic Specifications in Software Engineering: An Introduction

byIvo Van Horebeek, Johan Lewi

Paperback | December 21, 2011

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"I prefer to view formal methods as tools. the use of which might be helpful." E. W. Dijkstra Algebraic specifications are about to be accepted by industry. Many projects in which algebraic specifications have been used as a design tool have been carried out. What prevents algebraic specifications from breaking through is the absence of introductory descriptions and tools supporting the construction of algebraic specifications. On the one hand. interest from industry will stimulate people to make introductions and tools. whereas on the other hand the existence of introductions and tools will stimulate industry to use algebraic specifications. This book should be seen as a contribution towards creating this virtuous circle. The book will be of interest to software designers and programmers. It can also be used as material for an introductory course on algebraic specifications and software engineering at undergraduate or graduate level. Nowadays. there is general agreement that in large software projects appropriate specifications are a must in order to obtain quality software. Informal specifications alone are certainly not appropriate because they are incomplete. inconsistent. inaccurate and ambiguous and they rapidly become bulky and therefore useless. The only way to overcome this problem is to use formal specifications. An important remark here is that a specification formalism (language) alone is not sufficient. What is also needed is a design method to write specifications in that formalism.
Title:Algebraic Specifications in Software Engineering: An IntroductionFormat:PaperbackDimensions:350 pagesPublished:December 21, 2011Publisher:Springer-Verlag/Sci-Tech/TradeLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:364275032X

ISBN - 13:9783642750328

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Table of Contents

1. Introduction.- 1.1 Software Engineering.- 1.2 Software Life Cycle.- 1.3 Abstract Data Types and Specifications.- 1.4 Why Specifications ?.- 1.5 Why Formal Specifications ?.- 1.6 Algebraic Specifications, an Intuitive Approach.- 1.7 Survey.- 1.8 Historical Remarks on Algebraic Specifications.- 2. Abstract Data Types as Initial Algebras.- 2.1 Many-Sorted Algebra, Signature and Graphical Notation.- 2.2 Homomorphism and Isomorphism.- 2.3 Variable-Free Termlanguage.- 2.4 Word Algebra.- 2.5 Signature, Variety and Termalgebra.- 2.6 Signature and Initial Algebra.- 2.7 Abstract Data Types Defined by a Signature.- 2.8 Termlanguage.- 2.9 Substitution and Ground Substitution.- 2.10 Assignment.- 2.11 Axioms and Presentation.- 2.12 Presentation, Variety and Termalgebra.- 2.13 Equational Reasoning.- 2.14 Presentation and Initial Algebra.- 2.15 Abstract Data Types Defined by a Presentation.- 2.16 Examples.- 2.17 Induction.- 2.18 Hidden Operations and Sorts.- 2.19 Bibliographic Notes.- 3. An Algebraic Specif ication Language.- 3.1 Modularity.- 3.1.1 Modules.- 3.1.2 Import and Export Clauses.- 3.1.3 Export of the Import.- 3.2 Hierarchical Specifications.- 3.3 Notational Extensions.- 3.3.1 Ifthenelse Construct.- 3.3.2 Mixfix Notations.- 3.3.3 Conditional Axioms.- 3.3.4 Case Constructs.- 3.3.5 Let Constructs.- 3.3.6 Qualified Names and Renaming.- 3.4 Parameterized Specifications.- 3.4.1 Parameter Morphisms.- 3.4.2 Instantiations.- 3.4.3 Requirements and Induction.- 3.4.4 Remarks on Hierarchical Constraints.- 3.4.5 Renaming and Qualified Names.- 3.4.6 Partial Instantiations.- 3.4.7 Parameterized Parameter Passing.- 3.4.8 Parameterizing Requirements.- 3.5 Clusters.- 3.6 Bibliographic Notes.- 4. Constructive Specifications.- 4.1 Simple Example.- 4.2 Constructive Specifications.- 4.3 Theorems.- 4.4 Equality Operation.- 4.5 Example.- 4.6 Constructor Axioms.- 4.7 Semi-Constructive Specifications.- 4.8 Inconsistency.- 4.9 On Constructing Requirements.- 4.10 Claiming Modules.- 4.11 The Cartesian Product of Sorts.- 4.12 Constructivity and Abstraction.- 4.13 Bibliographic Notes.- 5. A Case Study: the Ferry Problem.- 5.1 Informal Description of tlie Ferry Problem.- 5.2 Formal Specification of the Ferry Problem.- 5.3 The Farmer, the Wolf, the Goat and the Cabbage.- 5.4 The Missionaries and the Cannibals.- 5.5 Specification of a Search Strategy.- 5.6 Conclusion.- 6. A Case Study: the Mini-PABX.- 6.1 Object-Oriented Design Method.- 6.2 Modularity.- 6.3 The Abstract Data Type Phone.- 6.4 Error Handling.- 6.5 The Abstract Data Type Mini-PABX.- 6.6 The Scheduling of the Messages.- 6.7 Skeleton of the Mini-PABX.- 6.8 A Two-Party Voice Call.- 6.8.1 The Module Phone.- 6.8.2 The Module PhoneMessages.- 6.8.3 The Module NextPhone.- 6.8.4 The Module OutPhone.- 6.9 Enquiry Call.- 6.9.1 The Module Phone.- 6.9.2 The Module PhoneMessages.- 6.9.3 The Module NextPhone.- 6.9.4 The Module OutPhone.- 6.10 User Actions.- 6.10.1 The Module PhoneMessages.- 6.10.2 The Module NextPhone.- 6.10.3 The Module OutPhone.- 6.11 Conclusion.- 7. Error Handling.- 7.1 The Need for an Error Handling System.- 7.2 Safety Functions.- 7.3 Safety and Unsafety Markers.- 7.4 Method of Error Specification.- 7.5 Safety Conditions.- 7.6 Miscellanies.- 7.7 Bibliographic Notes.- 8. Abstract Implementations.- 8.1 Example of the Stacks.- 8.2 Concepts of Abstract Implementations.- 8.2.1 Data Representation Part of ?A.- 8.2.2 Procedure Implementation Part of ?A.- 8.2.3 Representation Function.- 8.2.4 Implementation Invariant.- 8.2.5 Abstraction Function.- 8.2.6 Equivalence Relation.- 8.2.7 A Multi-Step Implementation Method.- 8.3 Implementation Constraints.- 8.4 Example: Scheme of Stacks.- 8.5 Example: Scheme of Symbol Tables.- 8.6 Properties and Relations.- 8.7 Bibliographic Notes.- Conclusions.- Appendix A: Syntax.- Appendix B: Rapid Prototyping, the Mini-PABX.