ALAP

Abstract

Assistive technologies such as screen readers and text editors have been used in past to improve the accessibility and authoring of scientific and mathematical documents. However, most screens readers fail to narrate complex mathematical notations and expressions as they skip symbols and necessary information required for the accurate narration of mathematical content. This study aims at evaluating a new Accessible LaTeX Based Mathematical Document Authoring and Presentation (ALAP) tool, which assist people with visual impairments in reading and writing mathematical documents. ALAP includes features like, assistive debugging, Math Mode for reading and writing mathematical notations, and automatic generation of an accessible PDF document. These features aim to improve the LaTeX debugging experience and make it simple for blind users to author mathematical content by narrating it in natural language through the use of integrated text to speech (TTS) engine. We evaluated ALAP by conducting a study with 18 visually impaired LaTeX users. The results showed that users preferred ALAP over another comparable LaTeX based authoring tool and were relatively more comfortable in completing the tasks while using ALAP.

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