Listen to a web site: accessibility (beyond current standards) and a market opportunity

Abstract

Accessibility to the web, for users with some kind of disabilities, is becoming a major concern for all the institutions, especially those providing resources related to Cultural Heritage. In this paper we focus upon accessibility for those users, with visual disabilities, who utilize a “screen reader”, i.e. a SW tool capable of “reading” a web page. In particular this paper illustrates WED, WEb as Dialogue, an innovative approach, developed in a joint \neffort between HOC-Lab (Politecnico di Milano, Italy), and TEC-Lab (University of Italian Switzerland). The basic idea of WED is that a web experience (i.e. the session of a user with a website) can be assimilated to a dialogue: the user’s conversational turns consist in selecting links; the machine’s conversational turns consist in providing adequate content (as reply to previous user’s requests) and offering new possibilities for the continuation of the dialogue (cues given by links). While a “typical” web page, read via a screen reader, is nearly impossible to understand, the WED approach allows designing websites that offer a more natural “oral interaction” for visually impaired users. \nIn addition even users with no disabilities may find useful to “listen to” a web site: e.g. while they can’t look at a screen or they are using devices with very small screens (as a PDA, for example). \nA first concrete result of this technique is the web-site \nwww.munchundberlin.org, prepared (within the project \nHELP, partially funded by the European Commission), for \nan exhibition at the Staatliche Museen (Berlin, April 11th -July 13th 2003).

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