Ehrler Frederic, Weinhold Thomas, Joe Jonathan, Lovis Christian, Blondon Katherine
Division of Medical Information Sciences, University Hospitals of Geneva, Geneva, Switzerland.
Biomedical & Health Informatics, University of Washington, Seattle, WA, United States.
JMIR Mhealth Uhealth. 2018 Mar 21;6(3):e57. doi: 10.2196/mhealth.9079.
The introduction of clinical information systems has increased the amount of clinical documentation. Although this documentation generally improves patient safety, it has become a time-consuming task for nurses, which limits their time with the patient. On the basis of a user-centered methodology, we have developed a mobile app named BEDSide Mobility to support nurses in their daily workflow and to facilitate documentation at the bedside.
The aim of the study was to assess the usability of the BEDSide Mobility app in terms of the navigation and interaction design through usability testing.
Nurses were asked to complete a scenario reflecting their daily work with patients. Their interactions with the app were captured with eye-tracking glasses and by using the think aloud protocol. After completing the tasks, participants filled out the system usability scale questionnaire. Descriptive statistics were used to summarize task completion rates and the users' performance.
A total of 10 nurses (aged 21-50) participated in the study. Overall, they were satisfied with the navigation, layout, and interaction design of the app, with the exception of one user who was unfamiliar with smartphones. The problems identified were related to the ambiguity of some icons, the navigation logic, and design inconsistency.
Besides the usability issues identified in the app, the participants' results do indicate good usability, high acceptance, and high satisfaction with the developed app. However, the results must be taken with caution because of the poor ecological validity of the experimental setting.
临床信息系统的引入增加了临床文档的数量。虽然这些文档总体上提高了患者安全，但对护士来说却成了一项耗时的任务，这限制了他们与患者相处的时间。基于以用户为中心的方法，我们开发了一款名为床边移动助手（BEDSide Mobility）的移动应用程序，以支持护士的日常工作流程并便于床边记录。
本研究的目的是通过可用性测试评估床边移动助手应用程序在导航和交互设计方面的可用性。
要求护士完成一个反映他们与患者日常工作的场景。使用眼动追踪眼镜并通过出声思考协议捕捉他们与应用程序的交互。完成任务后，参与者填写系统可用性量表问卷。使用描述性统计来总结任务完成率和用户表现。
共有10名护士（年龄在21 - 50岁之间）参与了该研究。总体而言，他们对应用程序的导航、布局和交互设计感到满意，但有一名不熟悉智能手机的用户除外。发现的问题与一些图标的模糊性、导航逻辑和设计不一致有关。
除了应用程序中发现的可用性问题外，参与者的结果确实表明对开发的应用程序具有良好的可用性、高接受度和高满意度。然而，由于实验环境的生态效度较差，对结果必须谨慎看待。
