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 ...

Get Access by Design: A Guide to Universal Usability for Web Designers now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.