The uptake of Web 2.0 technologies, and its impact on visually disabled users

Andy Brown, Caroline Jay, Alex Q. Chen, Simon Harper
2011 Universal Access in the Information Society  
World Wide Web (Web) documents, once delivered in a form that remained constant whilst viewed, are now often dynamic with sections of a page able to change independently, either automatically or as a result of user interaction. In order to make these updates, and hence their host pages, accessible, it is necessary to detect when the update occurs and how it has changed the page, before determining how, when and what to present to the user. This can only be achieved with an understanding of both
more » ... the technologies used to achieve dynamic updates and the human factors influencing how people use them. After proposing a user-centred classification of dynamic updates, this paper surveys the current state of technology from two perspectives: that of the developer, and those of visually disabled users. For the former group we introduce some of the technologies that are currently available for implementing dynamic Web pages, before reporting on the results of experiments analysing current and historic Web pages to determine the extent of use of these technologies 'in the wild', and the trends in their uptake. The analysis
doi:10.1007/s10209-011-0251-y fatcat:cq7y6hhahjaatbwcyvfsunkfcm