4. Accessibility Requirements

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If you are developing a web site, you should always take great consideration on the accessibility requirements. Professional web developers create web sites which have proper standards and good accessibility to suite the users of the web site, including people with difficulty seeing, hearing, moving, or processing images.

When developing a website, the key factor than should be taken into consideration is to generate online documents that specializes browsers like a screen reader or braille displays can handle easily.

You can read the W3C’s Web Content Accessibility Guidelines 1.0 (WCAG 1.0) at http://www.w3.org/TR/WAI-WEBCONTENT/. This contains guidelines and standards which should be followed to increase user accessibility.

Accessibility and usability comes hand in hand, and the following chapters show ASP.NET tutorials on how to increase a web page’s usability to make the page easier to use for all the users of the web application.

• Image Alternate Text
  
  
• Avoiding Table for Layouts
• Client-side Scripts
• Validating Web Accessibility

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Table of Contents

Chapter 1 - HTML Web Standards
        Chapter 1.1 - Visual Studio and Standards
        Chapter 1.2 - External XHTML validation
Chapter 2 - Creating Columns Using CSS
        Chapter 2.1 - Page Layout using <div> tags
        Chapter 2.2 - ASP.NET Document Outline
        Chapter 2.3 - Style Rules for <div> tags
Chapter 3 - Improving Web Page Performance
        Chapter 3.1 - Turning off ViewState
        Chapter 3.2 - Caching Content
                Chapter 3.2.1 - Page-Level Caching
                Chapter 3.2.2 - Cache Period
» Chapter 4 - Accessibility Requirements
        Chapter 4.1 - Image Alternate Text
        Chapter 4.2 - Avoiding Table for Layouts
        Chapter 4.3 - Client-side Scripts
        Chapter 4.4 - Validating Web Accessibility
Chapter 5 - Increasing Web Page Usability
        Chapter 5.1 - Tab Order
        Chapter 5.2 - Access Keys
        Chapter 5.3 - Default Focus and Default Buttons

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