Das Buch soll Mainframe-Anwendern helfen, die Philosophie von Datenbanken zu verstehen und selbst Datenbankrecherchen zu formulieren. Hierfur stellt IBMs Query Management Facility, kurz QMF, eine sehr geschickt komponierte Sammlung von Werkzeugen zur Verfugung. Das Buch richtet sich an Endanwender und zeigt, wie man mit Hilfe von QMF fachliche Probleme loesen kann, auch ohne die Entwicklungsabteilung zu bemuhen. Die beigefugte CD-ROM enthalt die Tabellen, die allen Beispielen zugrunde liegen, als ASCII-Dateien und ermoeglicht die praktische Durchfuhrung der Fallbeispiele mit dem Computer.

Learn to integrate programming with good documentation. This book teaches you the craft of documentation for each step in the software development lifecycle, from understanding your users' needs to publishing, measuring, and maintaining useful developer documentation. Well-documented projects save time for both developers on the project and users of the software. Projects without adequate documentation suffer from poor developer productivity, project scalability, user adoption, and accessibility. In short: bad documentation kills projects. Docs for Developers demystifies the process of creating great developer documentation, following a team of software developers as they work to launch a new product. At each step along the way, you learn through examples, templates, and principles how to create, measure, and maintain documentation-tools you can adapt to the needs of your own organization. What You'll Learn Create friction logs and perform user research to understand your users' frustrations Research, draft, and write different kinds of documentation, including READMEs, API documentation, tutorials, conceptual content, and release notes Publish and maintain documentation alongside regular code releases Measure the success of the content you create through analytics and user feedback Organize larger sets of documentation to help users find the right information at the right time Who This Book Is For Ideal for software developers who need to create documentation alongside code, or for technical writers, developer advocates, product managers, and other technical roles that create and contribute to documentation for their products and services.

Thanks to the authors' easy-to-digest style, you'll effortlessly learn about types, object-oriented programming with classes and interfaces, and using TypeScript with JavaScript libraries. You'll discover TypeScript's excellent tooling as you explore code-quality improvement with TSLint, debugging with source maps, unit testing, and more. TypeScript is JavaScript with an important upgrade! By adding a strong type system to JavaScript, TypeScript can help you eliminate entire categories of runtime errors. In TypeScript Quickly, you'll learn to build rock-solid apps through practical examples and hands-on projects under the expert instruction of experienced web developers Yakov Fain and Anton Moiseev. WILL SELL LIKE Angular Development with Typescript, Key features * Mastering TypeScript syntax * Object-oriented programming with classes and interfaces * Using TypeScript with JavaScript libraries * Multiple real-world code samples Audience Written for intermediate web developers comfortable with JavaScript ES5 and HTML. About the technology TypeScript is an extension of JavaScript that includes key language features such as optional static typing, compile-time error catching, and auto-complete. By specifying types and type annotations, your code becomes much easier to interpret, which improves productivity and team development. In particular, TypeScript makes complex applications like SPAs much easier to maintain and extend. Yakov Fain and Anton Moiseev are experienced web application developers. They authored two editions of Manning's Angular Development with TypeScript among other technical books. Yakov is a Java champion and a prolific tech blogger at yakov.fain.com. Yakov Fain and Anton Moiseev are experienced web application developers. They authored two editions of Manning's Angular Development with TypeScript among other technical books. Yakov is a Java champion and a prolific tech blogger at yakov.fain.com.

Online communities offer a wide range of opportunities today for supporting a cause, marketing a product or service, or developing open source software. The Art of Community helps you develop the talents you need to recruit members to your community, and motivate and manage them to become active participants. This expanded edition offers advice for using social networking platforms, organizing summits, and tracking progress on your goals. You'll also benefit from interviews with several community management leaders. Author Jono Bacon offers experiences and observations from his decade-long effort to build and manage communities, including his current position as manager for Ubuntu. Discover how a vibrant community can provide a reliable support network, a valuable source of new ideas, and a powerful marketing force - vital ingredients for any organization or project, particularly when money is tight. * Develop specific objectives and goals for building your community * Build simple, nonbureaucratic processes to help your community perform tasks, work together, and share successes * Provide tools and infrastructure that let contributors work quickly * Create buzz around your community to get more people involved * Track the community's work so it can be optimized and simplified * Explore a capable, representative governance strategy for your community * Identify and manage conflict, such as dealing with divisive personalities

Dieses Buch fuhrt von Grund auf in das objektorientierte Programmieren in Java 2 ein. Alle Sprachkonstruktionen von Java 2 werden genau beschrieben und an pragnanten Beispielen veranschaulicht."

As Ruby pro David Copeland explains, writing a command-line application that is self-documenting, robust, adaptable and forever useful is easier than you might think. Ruby is particularly suited to this task, since it combines high-level abstractions with "close to the metal" system interaction wrapped up in a concise, readable syntax. Moreover, Ruby has the support of a rich ecosystem of open-source tools and libraries. Ten insightful chapters each explain and demonstrate a command-line best practice. You'll see how to use these tools to elevate the lowliest automation script to a maintainable, polished application. You'll learn how to use free, open source parsers to create user-friendly command-line interfaces as well as command suites. You'll see how to use defaults to keep options simple for everyday users, while giving advanced users options for more complex tasks. There's no reason a command-line application should lack documentation, whether it's part of a help command or a man page; you'll find out when and how to use both. Your journey from command-line novice to pro ends with a look at valuable approaches to testing your apps, and includes some fun techniques for outside-the-box, colorful interfaces that will delight your users. With Ruby, the command line is not dead. Long live the command line. What You Need: All you'll need is Ruby, and the ability to install a few gems along the way. Examples written for Ruby 1.9.2, but 1.8.7 should work just as well.

Systemen zum Enterprise Resource Planning, kurz ERP-Systemen, geht der Ruf voraus, enorme Kosten zu verursachen. Hingegen bleibt der Nutzen von ERP-Systemen fur Unternehmen oftmals unklar. Das Buch geht der Frage nach, wie Unternehmen den Einsatz von ERP-Systemen durch das Generieren signifikanter Kosten- oder Nutzenvorteile optimieren konnen. Konkrete Erfahrungsberichte aus der Praxis beleuchten verschiedenartige Aspekte der Kosten-/Nutzenoptimierung von ERP-Systemen: Vom Architekturmanagement (z.B. ERP-Konsolidierung) uber die Implementation (z.B. Adaptive Computing) bis hin zum Betrieb von ERP-Systemen. Das Buch wendet sich an Praktiker und IT-Leiter, die ihr ERP-System optimieren wollen. Es wendet sich zugleich an Unternehmensleitungen, die mit ihren IT-Verantwortlichen nach Wegen der Kosten-/Nutzenoptimierung suchen. Ein Buch von Praktikern fur Praktiker!

Create physical interfaces that interact with the Internet and web pages. With Arduino and JavaScript you can create interactive physical displays and connected devices that send data to or receive data from the web. You'll take advantage of the processes needed to set up electronic components, collect data, and create web pages able to interact with electronic components. Through exercises, projects, and explanations, this book will give you the core front end web development and electronics skills needed to create connected physical interfaces and build compelling visualizations with a range of JavaScript libraries. By the end of the book you will have developed fully working interactive prototypes capable of sending data to and receiving data from a physical interface. Most importantly, Connecting Arduino to the Web will give you a taste of what is possible and the knowledge to create your own connected physical interfaces and bring the web into your electronics projects. What You'll Learn Build an Internet of Things dashboard that updates with electronics attached to an Arduino Use components to interact with online 3D displays Create web pages with HTML and CSS Set up a Node.js server Use WebSockets to process live data Interact with scalable vector graphics (SVG) Who This Book Is For Technologists, developers, and enthusiasts looking to extend their skills, be able to develop physical prototypes with connected devices, and with an interest in getting started with IoT. Also, those excited by the possibilities of connecting the physical and the web.

Implement the powerful multimedia and interactive capabilities offered by HTML5, including style control tools, illustration tools, video, audio, and rich media solutions. Understand how HTML5 is changing the web development game with this project-based book that shows you-not just tells you-what HTML5 can do for your websites. Reinforce your practical understanding of the new standard with demo applications and tutorials, so that execution is one short step away. HTML5 is the future of the web. Literally every web designer and developer needs to know how to use this language to create the types of web sites consumers now expect. This new edition of the bestseller teaches you to enhance your web designs with rich media solutions and interactivity, using detailed descriptions and hands-on projects for every step along the way. The second edition contains completely updated information, including more on mobility and video standards, plus new projects. The companion website, visualizetheweb.com, is packed full of extra information, online code libraries, and a user forum, offering even more opportunity to learn new skills, practice your coding and interact with other users. * NEW content added, detailing Web API, Mobile/Tablet Controls, CSS3 for Mobile Devices, Creating SVG Illustrations, and Emerging Standards * Updated information on how to use HTML5 within a variety of browsers including Chrome, Safari, Internet Explorer, and Firefox * As in the first edition, concepts are thoroughly explained and then brought to life via hands-on projects in each section

DESCRIPTION Serverless architecture is about having more time to focus on code, and moving quickly. In these new architectures, traditional back-end servers are replaced with cloud functions acting as discrete singlepurpose services. With serverless compute technologies like AWS Lambda, developers can build entirely serverless platforms at scale. Serverless Architectures on AWS teaches how to build, secure and manage serverless architectures that can power the most demanding web and mobile apps. This book has many ready-made and real-world examples, code snippets, diagrams, and descriptions of architectures that can be readily applied. It describes a traditional application and its back end concerns and then shows how to solve these same problems with a serverless approach. By the end, readers will be able to reason about serverless systems and be able to compose their own systems by applying these ideas and examples. KEY FEATURES * Up-to-date with the most current platform trends * Real-world examples, code snippets, and diagrams * Learn to solve back end concerns with a serverless approach AUDIENCE This book is for all software developers interested in back end technologies. Experience with JavaScript (node.js) and AWS is useful but not required. ABOUT THE TECHNOLOGY Lambda is a compute service that executes code written in JavaScript (node.js), Python, or Java on AWS infrastructure. Source code is deployed to an isolated container that has its own allocation of memory, disk space, and CPU. Serverless architectures herald a new way of building scalable, powerful, cost-effective, and high-performing back end systems. They encourage a new way of creating applications through the use of a stateless compute service to execute code.

Ruby is the fastest growing and most exciting dynamic language out there. If you need to get working programs delivered fast, you should add Ruby to your toolbox. This book is the only complete reference for both Ruby 1.9 and Ruby 2.0, the very latest version of Ruby. 2013 marks the 20th anniversary of the Ruby language. We're proud that throughout its history, we've continued to cover the latest version of Ruby. Would you like to go from first idea to working code much, much faster? Do you currently spend more time satisfying the compiler instead of your clients or end users? Are you frustrated with demanding languages that seem to get in your way, instead of getting the work done? Are you using Rails, and want to dig deeper into the underlying Ruby language? If so, then we've got a language and book for you! Ruby is a fully object-oriented language, much like the classic object-oriented language, Smalltalk. Like Smalltalk, it is dynamically typed (as opposed to Java or C++), but unlike Smalltalk, Ruby features the same conveniences found in modern scripting languages such as Perl and Python. The combination of the power of a pure object-oriented language with the convenience of a scripting language makes Ruby a favorite tool of intelligent, forward-thinking programmers. The Pickaxe contains four major sections: * An acclaimed tutorial on using Ruby. * The definitive reference to the language. * Complete documentation of all built-in classes, modules, and methods. * Complete descriptions of all 97 standard libraries. This is the reference manual for Ruby, including a description of all the standard library modules, a complete reference to all built-in classes and modules (including all the new and changed methods introduced by Ruby 1.9, 1.9.2, 1.9.3, and 2.0). It also includes all the new and changed syntax and semantics introduced since Ruby 1.8. Learn about the new parameter passing rules, local variable scoping in blocks, fibers, and the new block declaration syntax, among other exciting new features. About Ruby 2.0 Ruby 2.0 is a minor update to Ruby 1.9, unlike the more major updates from Ruby 1.8 to Ruby 1.9. The major language changes in Ruby 2.0 are the addition of keyword arguments and the change to use UTF-8 as the default source file encoding. There are a number of additions to the standard library, including: * @Enumerator::Lazy@, which adds support for lazy access to potentially infinite lists. * Refinements allow you to encapsulate changes to third-party classes, and scope their application to individual source files, preventing your changes from polluting the global application. You'll also find that Ruby 2 is faster, and has memory management improvements that make it more server-friendly. All told, there are over 110 sections of the book that have been flagged and cross-linked to indicate 2.0 content. What You Need * This book assumes you have a basic understanding of object-oriented programming. * In general, Ruby programmers tend to favor the the command line for running their code, and they tend to use text editors rather than IDEs.

Discover the Django web application framework and get started building Python-based web applications. This book takes you from the basics of Django all the way through to cutting-edge topics such as creating RESTful applications. Beginning Django also covers ancillary, but essential, development topics, including configuration settings, static resource management, logging, debugging, and email. Along with material on data access with SQL queries, you'll have all you need to get up and running with Django 1.11 LTS, which is compatible with Python 2 and Python 3. Once you've built your web application, you'll need to be the admin, so the next part of the book covers how to enforce permission management with users and groups. This technique allows you to restrict access to URLs and content, giving you total control of your data. In addition, you'll work with and customize the Django admin site, which provides access to a Django project's data. After reading and using this book, you'll be able to build a Django application top to bottom and be ready to move on to more advanced or complex Django application development. What You'll Learn Get started with the Django framework Use Django views, class-based views, URLs, middleware, forms, templates, and Jinja templates Take advantage of Django models, including model relationships, migrations, queries, and forms Leverage the Django admin site to get access to the database used by a Django project Deploy Django REST services to serve as the data backbone for mobile, IoT, and SaaS systems Who This Book Is For Python developers new to the Django web application development framework and web developers new to Python and Django.

Several client-side storage options are available to web applications, but one area that's been lacking until now is file I/O - the ability to organize binary data into a true hierarchy of folders. That has changed with the advent of HTML5. With this book, you'll learn how to provide your applications with a file system that enables them to create, read, and write files and folders in a sandboxed section of the user's local filesystem. Author Eric Bidelman, a Senior Developer Programs Engineer on the Google Chrome team, provides several techniques and complete code examples for working with the HTML5 Filesystem API. * Learn common operations for working with files and directories * Become familiar with HTML5's storage use cases and security considerations * Understand the storage options available, including temporary, persistent, and unlimited * Write text or append data to an existing user file * Import files into your application by accessing a user's hard drive * Get techniques for using a file with filesystem, blob, or data URLs * Use the synchronous version of the HTML5 Filesystem API within a Web Worker context

Discover how easy it is to design and build responsive, cross-platform apps with the Enyo open source JavaScript framework. With this revised and expanded edition, Enyo contributor Roy Sutton gets you started with the framework's core object-oriented features, including its modular design, reusable and extensible components, layout and widget libraries, easy-to-use deployment options, and support for HTML5 standards. You'll also delve into Enyo's latest features, including models, collections, data binding, and computed properties. Before you know it, you'll be writing native-quality, data-driven apps that work equally well on smartphones, tablets, and desktops. Are you familiar with HTML, CSS, or JavaScript? Then you're ready for Enyo. Build a sample project to get the feel of Enyo right away Learn Enyo's component building blocks, or "kinds" Design compelling and responsive apps with Enyo's layout library Build unique user interfaces with the Onyx library and widget set Find and share reusable components in the community gallery Explore the Moonstone Smart TV UI library Tackle debugging, performance tuning, and globalization Package your app for the Web, desktop, mobile, and TVs

Quickly find solutions to common web development problems. Content is presented in the popular problem-solution format. Look up the problem that you want to solve. Read the solution. Apply the solution directly in your own code. Problem solved! ASP.NET Core Recipes is a practical guide for developers creating modern web applications, cutting through the complexities of ASP.NET, jQuery, React, and HTML5 to provide straightforward solutions to common web development problems using proven methods based on best practices. The problem-solution approach gets you in, out, and back to work quickly while deepening your understanding of the underlying platform and how to develop with it.Author John Ciliberti guides you through the MVC framework and development tools, presenting typical challenges, along with code solutions and clear, concise explanations, to accelerate application development. Solve problems immediately by pasting in code from the recipes, or put multiple recipe solutions together to overcome challenging development obstacles. What You'll Learn Take advantage of MVC's streamlined syntax Discover how to take full control over HTML Develop a simple API for creating RESTful web services Understand test-driven development Migrate a project from ASP.NET web forms to Core MVC, including recipes for converting DataGrids, Forms, Web Parts, Master Pages, and navigation controls Use Core MVC in combination with popular JavaScript libraries, including jQuery, React, Bootstrap, and more Write unit tests for your MVC controllers, views, custom filters, and HTML helpers Utilize the latest features in Visual Studio 2017 to accelerate your Core MVC projects Identify performance bottlenecks in your MVC application Who This Book Is For Web developers of all skill levels who are looking for a programming reference for ASP.NET Core MVC and would like to gain an understanding of the inner workings of the platform. In addition, parts of this book provide guidance to developers familiar with ASP.NET Web Forms who would like to update their skill set to include Core MVC.

Distributed systems have become more fine-grained in the past 10 years, shifting from code-heavy monolithic applications to smaller, self-contained microservices. But developing these systems brings its own set of headaches. With lots of examples and practical advice, the second edition of this practical book takes a holistic view of the topics that system architects and administrators must consider when building, managing, and evolving microservice architectures. Microservice technologies are moving quickly, and this revised edition gets you up to date with a new chapter on serverless and cloud-native applications, expanded coverage of user interfaces, more hands-on code examples, and other additions throughout the book. Author Sam Newman provides you with a firm grounding in the concepts while diving into current solutions for modeling, integrating, testing, deploying, and monitoring your own autonomous services. You'll follow a fictional company throughout the book to learn how building a microservice architecture affects a single domain.

This book serves as a practical guide to developing RESTful applications, designing RESTful architectures, and deploying RESTful services using Ruby on Rails. By the end of each chapter, the reader will have key takeaways for how to build and extend a multi-service platform spanning different devices. The book explains the power of RESTful development with Rails, illustrating how to build an architecture composed of different services accessing shared resources through a set of collaborating APIs and applications.