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Access by Design: A Guide to Universal Usability for Web Designers by Sarah Horton

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Chapter 13. Interactivity

The web is both a hypertext system we navigate to find information and a software application we use to accomplish tasks. As a hypertext system, the Web does an adequate job, with enough built-in functionality to allow for describing and connecting documents and for providing document access. As a software application, the Web is less well equipped.

The Web is a client–server application that does not support page-level interactivity. Web interactions are based on a dialog between the Web browser (client) and the Web server (server). The browser requests a page; the server delivers it. Once the page is delivered, the dialog is suspended until the browser makes another page request. In the Web environment, the only way ...

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