Usability testing of a monitoring and feedback tool to stimulate physical activity.
Usability testing of a monitoring and feedback tool to stimulate physical activity.
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DOI：
10.2147/ppa.s57961
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发表时间：
2014
影响因子：
2.2
通讯作者：
de Witte LP
中科院分区：
文献类型：
--
作者：
van der Weegen S;Verwey R;Tange HJ;Spreeuwenberg MD;de Witte LP
一个监测和反馈工具，以刺激身体活动，包括活动传感器，智能手机应用程序（应用程序），和网站的病人和他们的实践护士，已经开发：“这是LiFe！”工具.在这项研究中，技术专家和最终用户（患有慢性阻塞性肺疾病或2型糖尿病的人，年龄在40-70岁之间）对工具的可用性进行了评估，以改进工具的用户界面和内容。研究分为四个阶段：1）由6名技术专家进行的启发式评估; 2）由5名患者在实验室进行的可用性测试; 3）在真实的生活中进行的试点，其中20名患者使用该工具3个月;以及4）由5名患者进行的最终实验室测试。在这两个实验室测试（第2和第4阶段）定性数据收集通过有声思维程序和录像，并通过有关任务的复杂性，文本的全面性和可读性的问题的定量数据。此外，完成了应用程序和网站的研究后系统可用性问卷（PSSUQ）。在试点测试（第3阶段）中，所有患者接受了三次访谈，并完成了软件可用性测量清单（SUMI）。在每个阶段之后，都进行了改进，主要是布局和文本。主要的改进是一个刷新按钮，用于活动传感器，应用程序和服务器之间的活动数据同步，在试点测试中出现连接问题后实施。网站的PSSUQ平均得分从5.6（标准差[SD] 1.3）提高到6.5（SD 0.5），应用程序从5.4（SD 1.5）提高到6.2（SD 1.1）。根据SUMI，飞行员的满意度不是很高。使用实验室与现实生活中的测试和基于专家与基于用户的测试揭示了广泛的可用性问题。这是LiFe！工具在研究过程中得到了很大的改进。
A monitoring and feedback tool to stimulate physical activity, consisting of an activity sensor, smartphone application (app), and website for patients and their practice nurses, has been developed: the ‘It’s LiFe!’ tool. In this study the usability of the tool was evaluated by technology experts and end users (people with chronic obstructive pulmonary disease or type 2 diabetes, with ages from 40–70 years), to improve the user interfaces and content of the tool. The study had four phases: 1) a heuristic evaluation with six technology experts; 2) a usability test in a laboratory by five patients; 3) a pilot in real life wherein 20 patients used the tool for 3 months; and 4) a final lab test by five patients. In both lab tests (phases 2 and 4) qualitative data were collected through a thinking-aloud procedure and video recordings, and quantitative data through questions about task complexity, text comprehensiveness, and readability. In addition, the post-study system usability questionnaire (PSSUQ) was completed for the app and the website. In the pilot test (phase 3), all patients were interviewed three times and the Software Usability Measurement Inventory (SUMI) was completed. After each phase, improvements were made, mainly to the layout and text. The main improvement was a refresh button for active data synchronization between activity sensor, app, and server, implemented after connectivity problems in the pilot test. The mean score on the PSSUQ for the website improved from 5.6 (standard deviation [SD] 1.3) to 6.5 (SD 0.5), and for the app from 5.4 (SD 1.5) to 6.2 (SD 1.1). Satisfaction in the pilot was not very high according to the SUMI. The use of laboratory versus real-life tests and expert-based versus user-based tests revealed a wide range of usability issues. The usability of the It’s LiFe! tool improved considerably during the study.