Automated construction of web accessibility models from transaction click-streams
Jalal Mahmud, Yevgen Borodin, I. V. Ramakrishnan, C. R. Ramakrishnan · 2009
Screen readers, the dominant assistive technology used by visually impaired people to access the Web, function by speaking out the content of the screen serially. Using screen readers for conducting online transactions can cause considerable information overload, because transactions, such as shopping and paying bills, typically involve a number of steps spanning several web pages. One can combat this overload by using a transaction model for web accessibility that presents only fragments of web pages that are needed for doing transactions. We can realize such a model by coupling a process automaton, encoding states of a transaction, with concept classifiers that identify page fragments “relevant ” to a particular state of the transaction. In this paper we present a fully automated process that synergistically combines several techniques for transforming unlabeled