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Accessibility
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Advantages for all
An accessible web also has a lot of advantages for non-physically challenged people. It makes reading easier for all users when the sentences are short and words clear. Only when words are understood can information be used. Uncomplicated text can be understood with little concentration, for example, after a tiring working day or in loud background noise. Images that move fast, are missing must be able to be switched off and should not divert from the content. Effortless reading is only possible when the text can easily be recognised. The text size can be increased for accessible sites. Due to good contrast the drawings are well projected from the background. As such the texts can be read comfortably even in bad light conditions.
When the web is accessible the user achieves their goal faster. Search engines display pages without frames preferentially. Accessible sites can be found more easily by users using browsers when the bookmarks have a unique title. Pages are loaded faster when frames, large graphics and nested tables are avoided. By creating web pages using CSS, measured use of images and multimedia elements, the loading time can be reduced from one third to sixth. Users of mobile phones with high call costs and owners of slow modems would be particularly happy with a reduced loading time.
Accessible sites always function. They can be seen on browsers running on less common platforms such as Macintosh or Linux. Also on small mobile phones or PDA's the text can be easily read. On small screens the pages are shown in overview. It is possible to read here without horizontal scrolling. Images can be disabled without loss of information. When a headset or sound card is missing, alternative options to sound are available.
Through accessibility security on the Internet is supported. Websites will be fully displayed even when the highest security level is selected. In browser active content (ActiveX or Flash, Java, JavaScript) is automatically disabled with this setting. The disabling of active content is recommended by Bundesamt für Sicherheit in der Informationstechnik (BSI) as a protection against computer viruses. Web pages that only partly function without JavaScript or Flash, require a user to reduce their security settings, thereby increasing risk. In comparison accessible websites can be used without risk.