Editing Wikipedia content by screen reader: Easier interaction with the Accessible Rich Internet Applications suite

Purpose. This study aims to improve Wikipedia usability for the blind and promote the application of standards relating to Web accessibility and usability. Method. First, accessibility and usability of Wikipedia home, search result and edit pages are analysed using the JAWS screen reader; next, suggestions for improving interaction are proposed and a new Wikipedia editing interface built. Most of the improvements were obtained using the Accessible Rich Internet Applications (WAI-ARIA) suite, developed by the World Wide Web Consortium (W3C) within the framework of the Web Accessibility Initiative (WAI). Last, a scenario of use compares interaction of blind people with the original and the modified interfaces. Results. Our study highlights that although all contents are accessible via screen reader, usability issues exist due to the user's difficulties when interacting with the interface. The scenario of use shows how building an editing interface with the W3C WAI-ARIA suite eliminates many obstacles that can prevent blind users from actively contributing to Wikipedia. Conclusion. The modified Wikipedia editing page is simpler to use via a screen reader than the original one because ARIA ensures a page overview, rapid navigation, and total control of what is happening in the interface.

[1]  M. Bower,et al.  Wiki Pedagogy -- A Tale of Two Wikis , 2006, 2006 7th International Conference on Information Technology Based Higher Education and Training.

[2]  Takayuki Watanabe Experimental evaluation of usability and accessibility of heading elements , 2007, W4A '07.

[3]  Sun-Gwan Han,et al.  The Study on Effective Programming Learning Using Wiki Community Systems , 2006, EC-TEL.

[4]  Barbara Leporini,et al.  Making Wikipedia editing easier for the blind , 2008, NordiCHI.

[5]  Naoki Suzuki,et al.  DICOM Wiki: Web-based collaboration and knowledge database system for radiologists , 2005 .

[6]  Barbara Leporini,et al.  Is Wikipedia usable for the blind? , 2008, W4A '08.

[7]  Wanlei Zhou,et al.  Teaching and learning online with wikis , 2004 .

[8]  Vicki L. Hanson,et al.  A web accessibility service: update and findings , 2004, Assets '04.

[9]  Marco Roccetti,et al.  Notes for a Collaboration: On the Design of a Wiki-type Educational Video Lecture Annotation System , 2007, International Conference on Semantic Computing (ICSC 2007).

[10]  Barbara Leporini,et al.  Evaluating a modified Google user interface via screen reader , 2007, Universal Access in the Information Society.

[11]  Barbara Leporini,et al.  Applying Web Usability Criteria for Vision-Impaired Users: Does It Really Improve Task Performance? , 2008, Int. J. Hum. Comput. Interact..

[12]  Carole A. Goble,et al.  Screen Readers Cannot See Ontology Based Semantic Annotation for Visually Impaired Web Travellers , 2004 .