Download Enterprise AJAX: Strategies for Building High Performance by David C. Johnson, Alexei White, Andre Charland PDF

By David C. Johnson, Alexei White, Andre Charland

Writing for company builders, architects, and consumer interface experts, the authors clarify why AJAX bargains such nice promise in large-scale improvement. subsequent, they systematically introduce modern-day key AJAX concepts and parts. you will stroll via constructing frameworks for development AJAX purposes that mix info tables, net varieties, charts, seek, and filtering: the very structures companies rely on in CRM, ERP, BI, and past. Then, development in this powerful starting place, the authors establish confirmed AJAX architectural styles, and current case reviews drawn from real .NET and Java AJAX functions. Coverge includes•Using AJAX to enforce Model-View-Controller (MVC) within the browser•Encapsulating consumer interface performance to facilitate code reuse and decrease cross-browser improvement problems•Overcoming the original defense demanding situations linked to AJAX internet applications•Optimizing AJAX usability: the "back" button, caching, bookmarking, offline utilization, and beyondFrom safeguard to scalability to undertaking chance, this is often the single e-book to hide the entire matters dealing with AJAX builders within the company. no matter if you are migrating legacy HTML interfaces or construction new purposes from scratch, you will discover it totally essential.

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Fire and Forget The most basic thing to consider in the interests of usability is the power of asynchronous server interactions. Asynchronous interactions mean that the user can interact with the application and continue to achieve workflow goals at the same time as the server is dealing with previous actions, such as persisting edited data to the database. We call this fire and forget because the request to the server is sent, and application control is immediately returned to the user who can then proceed to work.

Renewed emphasis on RIAs and key advancements in browser technologies have made AJAX not simply a new tool in the developer’s toolkit but a phenomenon that is changing the way web applications are written. com Summary 23 ence over the next couple of years. We hope to equip you with the knowledge and skills to design, develop, and deliver world-class web applications with highly usable interfaces for your users. Following is an outline of the topics you’ll learn about in the rest of the book: ■ ■ ■ ■ ■ ■ ■ ■ Chapter 2, “AJAX Building Blocks,”dives into the guts of an AJAX application with an overview of the roles of JavaScript, CSS, XML, and fundamentally, the DOM.

This isn’t to imply they are not of financial value, but many business benefits are hard to quantify, and seasoned IT managers know intuitively they can translate into significant bottom-line savings. When we look at streamlining a user interface, we can measure success by looking at factors like the following: ■ Steps to complete a task—Reducing the number of steps has implications for the amount of time consumed but also for the number of opportunities for error. Fewer errors mean cost savings down the road when these errors would have to be manually corrected.

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