Inform Health Soc Care - Usability of a web-based personal nutrition management tool.

Tópicos

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Resumo

'Personal Nutrition Management Tool' (PENUMAT) is an interactive web-based application which aims to help individuals seeking nutrition information on the Internet. However, little is known about the usability of such applications. The purpose of this study was to evaluate the usability of PENUMAT using multi-method approach. For an in-depth usability analysis, using a multi-method approach involving protocol analysis, interviews and a system usability scale (SUS) was adopted. The sample consisted of 10 healthy (five males and five females) volunteers between the ages of 22 and 60. The overall usability score was calculated; usability problems and users' opinions were obtained. All usability problems were classified according to the heuristics and listed with their frequencies. Overall, the usability score ranged from 77.5 to 100, with a median of 88.7. In-depth usability analysis exposed several usability problems mostly related to content, navigation and interactivity. Interview results showed that 'being personal and private' (70%) and 'providing personal feedbacks' (60%) were the most appreciated characteristics of the tool. Although the tool has an acceptable overall usability score, several unnoticed usability problems of the interface design were realised with the in-depth analysis. Therefore, the importance of using a multi-method analysis of usability was pointed out.

Resumo Limpo

person nutrit manag tool penumat interact webbas applic aim help individu seek nutrit inform internet howev littl known usabl applic purpos studi evalu usabl penumat use multimethod approach indepth usabl analysi use multimethod approach involv protocol analysi interview system usabl scale sus adopt sampl consist healthi five male five femal volunt age overal usabl score calcul usabl problem user opinion obtain usabl problem classifi accord heurist list frequenc overal usabl score rang median indepth usabl analysi expos sever usabl problem most relat content navig interact interview result show person privat provid person feedback appreci characterist tool although tool accept overal usabl score sever unnot usabl problem interfac design realis indepth analysi therefor import use multimethod analysi usabl point

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