Evaluating a Tool for Improving Accessibility to Charts and Graphs
| Autor: | Bruce Tsuji, Gitte Lindgaard, Livia Sumegi, Leo Ferres |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Iterative design
Computer science business.industry 05 social sciences 020207 software engineering Usability 02 engineering and technology Lexicon 050105 experimental psychology Graph law.invention Small field Human-Computer Interaction Human–computer interaction law Assistive technology Line graph 0202 electrical engineering electronic engineering information engineering 0501 psychology and cognitive sciences Interrogation business |
| Zdroj: | ACM Transactions on Computer-Human Interaction. 20:1-32 |
| ISSN: | 1557-7325 1073-0516 |
| DOI: | 10.1145/2533682.2533683 |
| Popis: | This article reports a case study of the iterative design and evaluation of a natural language-driven assistive technology, iGraph -Lite, providing people who are blind access to line graphs. Two laboratory-based usability studies involving blind and sighted people are presented with a discussion of the ensuing implementation of changes. Blind participants were found to adopt different graph interrogation strategies than sighted participants. A small field study is then reported in which a blind user who works with graphs took part to determine the degree to which the iGraph -Lite commands would meet the needs of blind graph experts. The final study invited sighted graph experts and novices to visually inspect and explain a set of line graphs comparable to those used in the usability studies. It aimed to highlight the concepts and the range of words sighted people use, to ascertain the appropriateness of the iGraph -Lite lexicon. A set of preliminary guidelines is presented. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|