Book Description

The concept of user stories has its roots as one of the main tenets of Extreme Programming. In simple terms, user stories represent an effective means of gathering requirements from the customer (roughly akin to use cases). This book describes user stories and demonstrates how they can be used to properly plan, manage, and test software development projects. The book highlights both successful and unsuccessful implementations of the concept, and provides sets of questions and exercises that drive home its main points. After absorbing the lessons in this book, readers will be able to introduce user stories in their organizations as an effective means of determining precisely what is required of a software application.

From the Back Cover
Agile requirements: discovering what your users really want. With this book, you will learn to:

• Flexible, quick and practical requirements that work
• Save time and develop better software that meets users’ needs
• Gathering user stories — even when you can’t talk to users
• How user stories work, and how they differ from use cases, scenarios, and traditional requirements
• Leveraging user stories as part of planning, scheduling, estimating, and testing
• Ideal for Extreme Programming, Scrum, or any other agile methodology

Thoroughly reviewed and eagerly anticipated by the agile community, User Stories Applied offers a requirements process that saves time Download Now »

Book Description

Pentaho Data Integration (PDI, also called Kettle), one of the data integration tools leaders, is broadly used for all kind of data manipulation such as migrating data between applications or databases, exporting data from databases to flat files, data cleansing, and much more. Do you need quick solutions to the problems you face while using Kettle?

Pentaho Data Integration 4 Cookbook explains Kettle features in detail through clear and practical recipes that you can quickly apply to your solutions. The recipes cover a broad range of topics including processing files, working with databases, understanding XML structures, integrating with Pentaho BI Suite, and more.

Pentaho Data Integration 4 Cookbook shows you how to take advantage of all the aspects of Kettle through a set of practical recipes organized to find quick solutions to your needs. The initial chapters explain the details about working with databases, files, and XML structures. Then you will see different ways for searching data, executing and reusing jobs and transformations, and manipulating streams. Further, you will learn all the available options for integrating Kettle with other Pentaho tools.

Pentaho Data Integration 4 Cookbook has plenty of recipes with easy step-by-step instructions to accomplish specific tasks. There are examples and code that are ready for adaptation to individual needs.

Learn to solve data manipulation problems using the Pentaho Data Integration tool Kettle. Download Now »

Book Description

It doesn’t matter how much time you invest in Android design, or even how careful you are when programming; mistakes are inevitable and bugs will appear. This book will help you minimize the impact of these errors in your Android project and increase your development productivity. It will show you the problems that are easily avoided, to help get you quickly to the testing stage.

Android Application Testing Guide is the first and only book providing a practical introduction to the most common available techniques, frameworks, and tools to improve the development of your Android applications. Clear, step-by-step instructions show how to write tests for your applications and assure quality control using various methodologies.

The author’s experience in applying application testing techniques to real world projects enables him to share insights on creating professional Android applications.

The book starts by introducing Test Driven Development, which is an agile component of the software development process and a technique where you will tackle bugs early on. From the most basic unit tests applied to a sample project to more sophisticated performance tests, this book provides a detailed description of the most widely used techniques in the Android testing world in a recipe-based approach.

The author has extensive experience of working on various development projects throughout his professional career. All this research and knowledge has helped create a book that will serve as a useful resource to any developer navigating the world of Android testing. Download Now »

Book Description

Build and test software written in Java and many other languages with Gradle, the open source project automation tool that’s getting a lot of attention. This concise introduction provides numerous code examples to help you explore Gradle, both as a build tool and as a complete solution for automating the compilation, test, and release process of simple and enterprise-level applications.

Discover how Gradle improves on the best ideas of Ant, Maven, and other build tools, with standards for developers who want them and lots of flexibility for those who prefer less structure.

• Use Gradle with Groovy, Clojure, Scala, and languages beyond the JVM, such as Flex and C
• Get started building a simple Java program using Gradle’s command line tooling and a small build script
• Learn how to configure and construct tasks, Gradle’s fundamental unit of build activity
• Take advantage of Gradle’s integration with Ant
• Use Gradle to integrate with or transition from Maven, and to build software more cleanly
• Perform application unit and integration tests using JUnit, TestNG, Spock, and Geb

About the Author
Tim is a full-stack generalist and passionate teacher who loves coding, presenting, and working with people. He is founder and principal software developer at the August Technology Group, a technology consulting firm focused on the JVM. He is a speaker internationally and on the No Fluff Just Stuff tour in the United States Download Now »

Book Description

If you know how to program, you have the skills to turn data into knowledge using the tools of probability and statistics. This concise introduction shows you how to perform statistical analysis computationally, rather than mathematically, with programs written in Python.

You’ll work with a case study throughout the book to help you learn the entire data analysis process—from collecting data and generating statistics to identifying patterns and testing hypotheses. Along the way, you’ll become familiar with distributions, the rules of probability, visualization, and many other tools and concepts.

• Develop your understanding of probability and statistics by writing and testing code
• Run experiments to test statistical behavior, such as generating samples from several distributions
• Use simulations to understand concepts that are hard to grasp mathematically
• Learn topics not usually covered in an introductory course, such as Bayesian estimation
• Import data from almost any source using Python, rather than be limited to data that has been cleaned and formatted for statistics tools
• Use statistical inference to answer questions about real-world data

About the Author
Allen Downey is an Associate Professor of Computer Science at the Olin College of Engineering. He has taught computer science at Wellesley College, Colby College and U.C. Berkeley. He has a Ph.D. in Computer Science from U.C. Berkeley and Master’s and Bachelor’s degrees from MIT. Download Now »

Book Description

Continuous Testing (CT) is a developer practice that shortens the feedback loops established by test-driven development and continuous integration. Building on techniques used by Agile software development practitioners, Continuous Testing with Ruby shows you how to get instant feedback about both the quality of your code, and the quality of your tests.

We show how you can create a customized continuous testing environment, specifically suited to the projects you’re working on. You’ll see working examples for languages such as Ruby and JavaScript, but the techniques described in this book can easily be applied no matter what technology you happen to be working with. We also cover how to extend this environment when working with frameworks such as Ruby on Rails, and discuss how creating rapid feedback loops can dramatically increase the rate at which you can deliver working, valuable software.

Automated testing is an increasingly common practice in the software development industry. However, many companies struggle to gain all the benefits of automated testing, due to poorly written or incomplete tests. Continuous Testing with Ruby shows how these companies can get the most value out of their existing tests. It also helps you improve the quality of the new tests you write, by giving you instant feedback about problem areas, and creating a visceral feedback loop for test quality that you can actually feel as you work.

Just as continuous integration and test-driven development have changed the definition of software development in the last ten years Download Now »