A decision procedure is an algorithm that, given a decision problem, terminates with a correct yes/no answer. Here, the authors focus on theories that are expressive enough to model real problems, but are still decidable. Specifically, the book concentrates on decision procedures for first-order theories that are commonly used in automated verification and reasoning, theorem-proving, compiler optimization and operations research. The techniques described in the book draw from fields such as graph theory and logic, and are routinely used in industry. The authors introduce the basic terminology of satisfiability modulo theories and then, in separate chapters, study decision procedures for each of the following theories: propositional logic; equalities and uninterpreted functions; linear arithmetic; bit vectors; arrays; pointer logic; and quantified formulas. They also study the problem of deciding combined theories and dedicate a chapter to modern techniques based on an interplay between a SAT solver and a decision procedure for the investigated theory. This textbook has been used to teach undergraduate and graduate courses at ETH Zurich, at the Technion, Haifa, and at the University of Oxford. Each chapter includes a detailed bibliography and exercises. Lecturers´ slides and a C++ library for rapid prototyping of decision procedures are available from the authors´ website.
A decision procedure is an algorithm that, given a decision problem, terminates with a correct yes/no answer. Here, the authors focus on theories that are expressive enough to model real problems, but are still decidable. Specifically, the book concentrates on decision procedures for first-order theories that are commonly used in automated verification and reasoning, theorem-proving, compiler optimization and operations research. The techniques described in the book draw from fields such as graph theory and logic, and are routinely used in industry. The authors introduce the basic terminology of satisfiability modulo theories and then, in separate chapters, study decision procedures for each of the following theories: propositional logic; equalities and uninterpreted functions; linear arithmetic; bit vectors; arrays; pointer logic; and quantified formulas.
As a software architect you work in a wide-ranging and dynamic environment. You have to understand the needs of your customer, design architectures that satisfy both functional and non-functional requirements, and lead development teams in implementing the architecture. And it is an environment that is constantly changing: trends such as cloud computing, service orientation, and model-driven procedures open up new architectural possibilities. This book will help you to develop a holistic architectural awareness and knowledge base that extends beyond concrete methods, techniques, and technologies. It will also help you to acquire or expand the technical, methodological, and social competences that you need. The authors place the spotlight on you, the architect, and offer you long-term architectural orientation. They give you numerous guidelines, checklists, and best practices to support you in your practical work. ´´Software Architecture´´ offers IT students, software developers, and software architects a holistic and consistent orientation across relevant topics. The book also provides valuable information and suggestions for system architects and enterprise architects, since many of the topics presented are also relevant for their work. Furthermore, IT project leads and other IT managers can use the book to acquire an enhanced understanding of architecture. Further information is available at www.software-architecture-book.org.
This pocket guide is the perfect on-the-job companion to Git, the distributed version control system. It provides a compact, readable introduction to Git for new users, as well as a reference to common commands and procedures for those of you with Git experience. Written for Git version 1.8.2, this handy task-oriented guide is organized around the basic version control functions you need, such as making commits, fixing mistakes, merging, and searching history. * Examine the state of your project at earlier points in time * Learn the basics of creating and making changes to a repository * Create branches so many people can work on a project simultaneously * Merge branches and reconcile the changes among them * Clone an existing repository and share changes with push/pull commands * Examine and change your repository?s commit history * Access remote repositories, using different network protocols * Get recipes for accomplishing a variety of common tasks
A solid introduction to the practices, plans, and skills required for developing a smart system architecture Information architecture combines IT skills with business skills in order to align the IT structure of an organization with the mission, goals, and objectives of its business. This friendly introduction to IT architecture walks you through the myriad issues and complex decisions that many organizations face when setting up IT systems to work in sync with business procedures. Veteran IT professional and author Kirk Hausman explains the business value behind IT architecture and provides you with an action plan for implementing IT architecture procedures in an organization. You´ll explore the many challenges that organizations face as they attempt to use technology to enhance their business´s productivity so that you can gain a solid understanding of the elements that are required to plan and create an architecture that meets specific business goals. * Defines IT architecture as a blend of IT skills and business skills that focuses on business optimization, business architecture, performance management, and organizational structure * Uncovers and examines every topic within IT architecture including network, system, data, services, application, and more * Addresses the challenges that organizations face when attempting to use information technology to enable profitability and business continuity While companies look to technology more than ever to enhance productivity, you should look to IT Architecture For Dummies for guidance in this field.
Principles of Computer System Design: An Introduction is the first book to identify, examine, and illustrate the fundamental principles and abstractions in computer system design that are common across operating systems, networks, database systems, distributed systems, programming languages, software engineering, and computer architecture. Through carefully analyzed case studies from each of these disciplines, it demonstrates how to apply these principles and abstractions to tackle real system design problems. To support the focus on design, the book identifies and explains abstractions that have proven successful in practice such as, names, remote procedure call, client/service organization, file systems, transactions, replication with repair, read/write coherence, and authenticated and confidential messages. These abstractions allow designers to compose systems with increasingly strong modularity, to protect against failures ranging from accidental programmer errors to malicious adversaries. This book describes how these abstractions are implemented, demonstrates how they are used in different systems, and prepares the reader to apply them in future designs.
Requirements engineering is the process of eliciting individual stakeholder requirements and needs and developing them into detailed, agreed requirements documented and specified in such a way that they can serve as the basis for all other system development activities. In this textbook, Klaus Pohl provides a comprehensive and well-structured introduction to the fundamentals, principles, and techniques of requirements engineering. He presents approved techniques for eliciting, negotiating and documenting as well as validating, and managing requirements for software-intensive systems. The various aspects of the process and the techniques are illustrated using numerous examples based on his extensive teaching experience and his work in industrial collaborations. His presentation aims at professionals, students, and lecturers in systems and software engineering or business applications development. Professionals such as project managers, software architects, systems analysts, and software engineers will benefit in their daily work from the didactically well-presented combination of validated procedures and industrial experience. Students and lecturers will appreciate the comprehensive description of sound fundamentals, principles, and techniques, which is completed by a huge commented list of references for further reading. Lecturers will find additional teaching material on the book´s website, www.requirements-book.com.
High Performance MySQL teaches you advanced techniques in depth so you can bring out MySQL´s full power. Learn how to design schemas, indexes, queries, and advanced MySQL features for maximum performance, and get detailed guidance for tuning your MySQL server, operating system, and hardware to their fullest potential. You´ll also learn practical, safe, high-performance ways to scale your applications with replication, load balancing, high availability, and failover. How can you bring out MySQL?s full power? With High Performance MySQL, you?ll learn advanced techniques for everything from designing schemas, indexes, and queries to tuning your MySQL server, operating system, and hardware to their fullest potential. This guide also teaches you safe and practical ways to scale applications through replication, load balancing, high availability, and failover. Updated to reflect recent advances in MySQL and InnoDB performance, features, and tools, this third edition not only offers specific examples of how MySQL works, it also teaches you why this system works as it does, with illustrative stories and case studies that demonstrate MySQL?s principles in action. With this book, you?ll learn how to think in MySQL. * Learn the effects of new features in MySQL 5.5, including stored procedures, partitioned databases, triggers, and views * Implement improvements in replication, high availability, and clustering * Achieve high performance when running MySQL in the cloud * Optimize advanced querying features, such as full-text searches * Take advantage of modern multi-core CPUs and solid-state disks * Explore backup and recovery strategies?including new tools for hot online backups
Prepare for Microsoft Exam 70-761?and help demonstrate your real-world mastery of SQL Server 2016 Transact-SQL data management, queries, and database programming. Designed for experienced IT professionals ready to advance their status, Exam Ref focuses on the critical-thinking and decision-making acumen needed for success at the MCSA level. Focus on the expertise measured by these objectives: ? Filter, sort, join, aggregate, and modify data ? Use subqueries, table expressions, grouping sets, and pivoting ? Query temporal and non-relational data, and output XML or JSON ? Create views, user-defined functions, and stored procedures ? Implement error handling, transactions, data types, and nulls This Microsoft Exam Ref: ? Organizes its coverage by exam objectives ? Features strategic, what-if scenarios to challenge you ? Assumes you have experience working with SQL Server as a database administrator, system engineer, or developer ? Includes downloadable sample database and code for SQL Server 2016 SP1 (or later) and Azure SQL Database