Perry, Dewayne E.2016-12-152018-01-222016-12-152018-01-222007-08http://hdl.handle.net/2152/43981Highly interactive Web 2.0 applications pose a challenge for accessibility. The W3C is developing a new standard called WAI-ARIA to address this challenge. In this thesis we describe the architecture and implementation of WAI-ARIA support in Fire Vox, screen reading extension for the Firefox web browser. We give an overview of the concepts of accessibility, software architecture, and screen readers; we summarize the architecture and design of the CLC-4-TTS Suite, of which Fire Vox is a part; we explain the WAI-ARIA standard for live region markup; we present an implementation of WAIARIA in Fire Vox; and we we analyze this implementation.electronicengCopyright © is held by the author. Presentation of this material on the Libraries' web site by University Libraries, The University of Texas at Austin was made possible under a limited license grant from the author who has retained all copyrights in the works.Web 2.0 applicationsWAI-ARIAFire VoxScreen readersSoftware architectureThesisRestricted