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Comparing speech recognition and touch tone as input modalities for Technologically unsophisticated users
Dissertation (MSc)--University of Pretoria, 2006.
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| Format: | Thesis |
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University of Pretoria
2013
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| _version_ | 1867613504223051776 |
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| access_status_str | Open Access |
| author2 | Barnard, E. |
| author_browse | Barnard, E. |
| author_facet | Barnard, E. |
| collection | Thesis |
| dc_rights_str_mv | © 2005, University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Dissertation (MSc)--University of Pretoria, 2006. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/25498 |
| institution | University of Pretoria (South Africa) |
| last_indexed | 2026-06-10T12:37:11.932Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/25498 Comparing speech recognition and touch tone as input modalities for Technologically unsophisticated users Barnard, E. kafidi@iway.na, kafidi@polytechnic.edu.na Kafidi, Petrus L Telephony interface Human-computer interaction Speech recognition Usability User interface UCTD Dissertation (MSc)--University of Pretoria, 2006. Using an automated service to access information via the telephone has become an important productivity enhancer in the developed world. However, such automated services are generally quite inaccessible to users who have had little technological exposure. There has been a widespread belief that speech-recognition technology can be used to bridge this gap, but little objective evidence for this belief has been produced. To address this situation, two interfaces, touchtone and speech-based, were designed and implemented as input modalities to a system that provides technologically unsophisticated users with access to an informational/transactional service. These interfaces were optimised and compared using transaction completion rates, time taken to complete tasks, error rates and user satisfaction. The speech-based interface was found to outperform the touchtone interface in terms of completion rate, error rate and user satisfaction. The data obtained on time taken to complete tasks could not be compared as the DTMF interface data were highly influenced by people who are not technologically unsophisticated. These results serve as a confirmation that speech-based interfaces are more effective and more satisfying and can therefore enhance information dissemination to people who are not well exposed to the technology. Computer Science unrestricted 2013-09-06T21:55:00Z 2005-08-29 2013-09-06T21:55:00Z 2005-06-10 2006-08-29 2005-06-13 Dissertation Kafidi, P 2005, Comparing speech recognition and touch tone as input modalities for Technologically unsophisticated users, MSc dissertation, University of Pretoria, Pretoria, viewed yymmdd < http://hdl.handle.net/2263/25498 > http://hdl.handle.net/2263/25498 http://upetd.up.ac.za/thesis/available/etd-06132005-195008/ © 2005, University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria |
| spellingShingle | Telephony interface Human-computer interaction Speech recognition Usability User interface UCTD Comparing speech recognition and touch tone as input modalities for Technologically unsophisticated users |
| title | Comparing speech recognition and touch tone as input modalities for Technologically unsophisticated users |
| title_full | Comparing speech recognition and touch tone as input modalities for Technologically unsophisticated users |
| title_fullStr | Comparing speech recognition and touch tone as input modalities for Technologically unsophisticated users |
| title_full_unstemmed | Comparing speech recognition and touch tone as input modalities for Technologically unsophisticated users |
| title_short | Comparing speech recognition and touch tone as input modalities for Technologically unsophisticated users |
| title_sort | comparing speech recognition and touch tone as input modalities for technologically unsophisticated users |
| topic | Telephony interface Human-computer interaction Speech recognition Usability User interface UCTD |
| url | http://hdl.handle.net/2263/25498 http://upetd.up.ac.za/thesis/available/etd-06132005-195008/ |