Reducing Clinicians' Cognitive Workload by System Redesign; a Pre-Post Think Aloud Usability Study

被引:7
作者
Peute, L. W. P. [1 ]
de Keizer, N. F. [1 ]
van der Zwan, E. P. A. [1 ]
Jaspers, M. W. M. [1 ]
机构
[1] Univ Amsterdam, Acad Med Ctr, Dept Med Informat, NL-1012 WX Amsterdam, Netherlands
来源
USER CENTRED NETWORKED HEALTH CARE | 2011年 / 169卷
关键词
Assessment-Evaluation; User Interfaces; Health Professional Workstation; Design aspects; Usability;
D O I
10.3233/978-1-60750-806-9-925
中图分类号
R19 [保健组织与事业(卫生事业管理)];
学科分类号
摘要
Interactive Health Information systems are often considered cognitively complex by their users, leading to high cognitive burden and increased workload. This paper explores if Think Aloud usability testing provides valuable input to effectively redesign a web-based Data Query Tool in Intensive Care and to reduce physicians' cognitive workload during system interaction. Pre and post redesign usability testing demonstrated a major reduction in the cognitive task workload after redesign of the tool. Classification of revealed usability problems by means of the User Action Framework pointed out that usability problems related to the cognitively planning of actions by system users foremost affected cognitive task workload. This result may support Health Information system (re) design efforts on how to tackle the system's cognitive complexity and in so doing improve on its usability.
引用
收藏
页码:925 / 929
页数:5
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