In User Stories Applied, Mike Cohn provides you with a front-to-back blueprint for writing these user stories and weaving them into your development lifecycle.You'll learn what makes a great user story, and what makes a bad one. You'll discover practical ways to gather user stories, even when you can't speak with your users. Then, once you've compiled your user stories, Cohn shows how to organize them, prioritize them, and use them for planning, management, and testing.User role modeling: understanding what users have in common, and where they differ Gathering stories: user interviewing, questionnaires, observation, and workshops Working with managers, trainers, salespeople and other proxies Writing user stories for acceptance testing Using stories to prioritize, set schedules, and estimate release costs Includes end-of-chapter practice questions and exercises User Stories Applied will be invaluable to every software developer, tester, analyst, and manager working with any agile method: XP, Scrum... or even your own home-grown approach.

    Each unit introduces a theme and writing task and then guides the student writer through the process of gathering ideas, organizing an outline, drafting, revising, and editing. Students are given the opportunity to explore their opinions, discuss their ideas, and share their experiences through written communication.Level 1 of the series introduces students to the academic paragraph

    Algorithms are the procedures that software programs use to manipulate data structures. Besides clear and simple example programs, the author includes a workshop as a small demonstration program executable on a Web browser. The programs demonstrate in graphical form what data structures look like and how they operate. In the second edition, the program is rewritten to improve operation and clarify the algorithms, the example programs are revised to work with the latest version of the Java JDK, and questions and exercises will be added at the end of each chapter making the book even more useful. Educational Supplement Suggested solutions to the programming projects found at the end of each chapter are made available to instructors at recognized educational institutions. This educational supplement can be found at www.prenhall.com, in the Instructor Resource Center.

    Easy access to computer graphic tools has turned many of us into either amateur or professional image producers. But without a basic understanding of visual language, a productive dialogue between producers and consumers of visual communication is impossible. Visual Grammar can help you speak and write about visual objects and their creative potential, and better understand the graphics that bombard you 24/7. It is both a primer on visual language and a visual dictionary of the fundamental aspects of graphic design.Dealing with every imaginable visual concept from abstractions such as dimension, format, and volume; to concrete objects such as form, size, color, and saturation; to activities such as repetition, mirroring, movement, and displacement; to relations such as symmetry, balance, diffusion, direction,and variation this book is an indispensable reference for beginners and seasoned visual thinkers alike. Whether you simply want to familiarize yourself with visual concepts or whether you're an experienced designer looking for new ways to convey your ideas to a client, Visual Grammar is the clear and concise manual that you've been looking for.

    Get to grips with the underlying technical principles and implementations of blockchainBuild powerful applications using Ethereum to secure transactions and create smart contractsExplore cryptography, mine cryptocurrencies, and solve scalability issues with this comprehensive guide

    Fully updated for the new Java SE 6 platform, this no-nonsense tutorial and reliable reference illuminates the most important language and library features with thoroughly tested real-world examples. The example programs have been carefully crafted to be easy to understand as well as useful in practice, so you can rely on them as an outstanding starting point for your own code. Volume I is designed to quickly bring you up to speed on what's new in Java SE 6 and to help you make the transition as efficiently as possible, whether you're upgrading from an earlier version of Java or migrating from another language. The authors concentrate on the fundamental concepts of the Java language, along with the basics of user-interface programming. You'll find detailed, insightful coverage ofJava fundamentalsObject-oriented programmingInterfaces and inner classesReflection and proxiesThe event listener modelGUI programming with SwingPackaging applicationsException handlingLogging and debuggingGeneric programmingThe collections frameworkConcurrencyFor detailed coverage of XML processing, networking, databases, internationalization, security, advanced AWT/Swing, and other advanced features, look for the forthcoming eighth edition of "Core Java(TM), Volume II--Advanced Features "(ISBN: 978-0-13-235479-0).

    Digital Design and Computer Architecture begins with a modern approach by rigorously covering the fundamentals of digital logic design and then introducing Hardware Description Languages (HDLs). Featuring examples of the two most widely-used HDLs, VHDL and Verilog, the first half of the text prepares the reader for what follows in the second: the design of a MIPS Processor. By the end of Digital Design and Computer Architecture, readers will be able to build their own microprocessor and will have a top-to-bottom understanding of how it works--even if they have no formal background in design or architecture beyond an introductory class. David Harris and Sarah Harris combine an engaging and humorous writing style with an updated and hands-on approach to digital design.Unique presentation of digital logic design from the perspective of computer architecture using a real instruction set, MIPS.Side-by-side examples of the two most prominent Hardware Design Languages--VHDL and Verilog--illustrate and compare the ways the each can be used in the design of digital systems.Worked examples conclude each section to enhance the reader's understanding and retention of the material.

    The most common operation done with sed is substitution, replacing one block of text with another. awk is a complete programming language. Unlike many conventional languages, awk is "data driven" -- you specify what kind of data you are interested in and the operations to be performed when that data is found. awk does many things for you, including automatically opening and closing data files, reading records, breaking the records up into fields, and counting the records. While awk provides the features of most conventional programming languages, it also includes some unconventional features, such as extended regular expression matching and associative arrays. sed & awk describes both programs in detail and includes a chapter of example sed and awk scripts. This edition covers features of sed and awk that are mandated by the POSIX standard. This most notably affects awk, where POSIX standardized a new variable, CONVFMT, and new functions, toupper() and tolower(). The CONVFMT variable specifies the conversion format to use when converting numbers to strings (awk used to use OFMT for this purpose). The toupper() and tolower() functions each take a (presumably mixed case) string argument and return a new version of the string with all letters translated to the corresponding case. In addition, this edition covers GNU sed, newly available since the first edition. It also updates the first edition coverage of Bell Labs nawk and GNU awk (gawk), covers mawk, an additional freely available implementation of awk, and briefly discusses three commercial versions of awk, MKS awk, Thompson Automation awk (tawk), and Videosoft (VSAwk).

    With a focus on core concepts and best practices rather than on individual languages, platforms, or technologies, Web Scalability for Startup Engineers describes how infrastructure and software architecture work together to support a scalable environment.You'll learn, step by step, how scalable systems work and how to solve common challenges. Helpful diagrams are included throughout, and real-world examples illustrate the concepts presented. Even if you have limited time and resources, you can successfully develop and deliver robust, scalable web applications with help from this practical guide.Learn the key principles of good software design required for scalable systemsBuild the front-end layer to sustain the highest levels of concurrency and request ratesDesign and develop web services, including REST-ful APIsEnable a horizontally scalable data layerImplement caching best practicesLeverage asynchronous processing, messaging, and event-driven architectureStructure, index, and store data for optimized searchExplore other aspects of scalability, such as automation, project management, and agile teams

    On the other hand, if you're not well versed in the theory, you can fall into several traps. In SQL and Relational Theory, author C.J. Date demonstrates how you can apply relational theory directly to your use of SQL. With numerous examples and clear explanations of the reasoning behind them, you'll learn how to deal with common SQL dilemmas, such as:Should database access granted be through views instead of base tables? Nulls in your database are causing you to get wrong answers. Why? What can you do about it? Could you write an SQL query to find employees who have never been in the same department for more than six months at a time? SQL supports "quantified comparisons," but they're better avoided. Why? How do you avoid them? Constraints are crucially important, but most SQL products don't support them properly. What can you do to resolve this situation? Database theory and practice have evolved since Edgar Codd originally defined the relational model back in 1969. Independent of any SQL products, SQL and Relational Theory draws on decades of research to present the most up-to-date treatment of the material available anywhere. Anyone with a modest to advanced background in SQL will benefit from the many insights in this book.

    But how much time you actually spend on your projects, and how much time do you spend responding to emergencies? This book will introduce you to different ways of ordering all of the projects you are working on now, and help you figure out how to staff those projects--even when you've run out of project teams to do the work. Once you learn to manage your portfolio better, you'll avoid emergency "firedrills." The trick is adopting lean and agile approaches to projects, whether they are software projects, projects that include hardware, or projects that depend on chunks of functionality from other suppliers. You may be accustomed to spending time in meetings where you still don't have the data you need to evaluate your projects. Here, with a few measures, you'll be able to quickly evaluate each project and come to a decision quickly. You'll learn how to define your team's, group's, or department's mission with none of the buzzwords that normally accompany a mission statement. Armed with the work and the mission, you can make those decisions that define the true leaders in the organization.

    The key, as the authors show, is to integrate regularly and often using continuous integration (CI) practices and techniques. The authors first examine the concept of CI and its practices from the ground up and then move on to explore other effective processes performed by CI systems, such as database integration, testing, inspection, deployment, and feedback. Through more than forty CI-related practices using application examples in different languages, readers learn that CI leads to more rapid software development, produces deployable software at every step in the development lifecycle, and reduces the time between defect introduction and detection, saving time and lowering costs. With successful implementation of CI, developers reduce risks and repetitive manual processes, and teams receive better project visibility. The book covers How to make integration a "non-event" on your software development projects How to reduce the amount of repetitive processes you perform when building your software Practices and techniques for using CI effectively with your teams Reducing the risks of late defect discovery, low-quality software, lack of visibility, and lack of deployable software Assessments of different CI servers and related tools on the market The book's companion Web site, www.integratebutton.com, provides updates and code examples

    Agile is increasingly popular with software teams because the ones that have gone agile often talk about the great results they get. The software they build is better, which makes a big difference to them and their users. Not only that, but when agile teams are effective, they have a much better time at work! Things are more relaxed, and the working environment is a lot more enjoyable.Head First Agile is a brain-friendly guide to understanding agile concepts and ideas. Here s what you ll find inside:The agile mindset, what an agile methodology is, and why agile methodologies that seem so different can still all be agileScrum, and how it can help you build better, more valuable software, and make your team and your users happierXP, and how its focus on code and programming can help you and your team build better systemsLean and Kanban, and how they can help your whole team get better every dayWe have two goals for Head First Agile. First and foremost, we want you to learn agile: what it is, and how it can help you build better software and improve your team. But we also are focused on our readers looking to pass the PMI-ACP certification, so not only does the book have 100% coverage of the material for the PMI-ACP exam, it also includes end-of-chapter exam questions, a complete exam study guide, exam tips, and a full-length practice PMI-ACP exam everything that you need to pass the exam.So while Head First Agile is useful for developers, project managers, and others who want to prepare for and pass the PMI-ACP certification exam, this unique book is also valuable for software team members (including developers) who don't necessarily need to pass the PMI-ACP certification exam, but want to learn about agile and how it can help them.Based on the latest research in cognitive science and learning theory, this book uses a visually rich format to engage your mind, rather than a text-heavy approach that puts you to sleep. Why waste your time struggling with new concepts? This multi-sensory learning experience is designed for the way your brain really works."

    As the creators of the Java programming language, the authors help programmers understand why Java is such a powerful language. As a result, the programmers learn how Java is suitable for building a variety of applications. The authors also provide unique "behind-the-scenes" insights into how the language was designed and intended to be used. Thoroughly revised from start to finish, this fourth edition covers all of the features of J2SE 5.0 release. Updates to the fourth edition of this best-seller include concise coverage on generics, metadata, autoboxing, enumerations, enhanced loops, and more.

    Reprint.