The think aloud method: a guide to user interface design
The think aloud method: a guide to user interface design
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DOI：
10.1016/j.ijmedinf.2004.08.003
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发表时间：
2004-11-01
影响因子：
4.9
通讯作者：
Geenen, M
中科院分区：
文献类型：
--
作者：
Jaspers, MWM;Steen, T;Geenen, M
目的：计算机系统的临床使用受到设计不良的用户界面的阻碍。本研究的目的是设计一个儿科肿瘤医生的计算机化病历的用户界面，充分考虑他们的工作行为和人机界面的原则，以有助于肿瘤医生的效率和满意度与系统的互动。研究方法：有声思维方法与视频记录相结合，以深入了解四名儿科肿瘤学家在准备患者就诊时搜索纸质病历的方式。协议和视频分析被用来开发一个认知任务模型，反映儿科肿瘤学家的任务行为。该模型被输入原型用户界面，随后由其他八名儿科肿瘤学家进行评估。结果：最终的计算机化病历系统被证明满足儿科肿瘤学家的信息需求和任务行为模式。用户界面的设计最大限度地减少了儿科肿瘤学家的工作量，并高效地支持儿科肿瘤学家准备他们的患者访视。儿科肿瘤学家对计算机系统非常满意。结论：有人认为，认知工程方法在系统设计过程中的早期参与可能是很大的帮助，在设计系统，完全支持医疗保健专业人员的工作实践。有声思维的方法，如果在规定的条件下应用，是一个有价值的信息来源，人类的任务行为，并作为一个有用的技术，在设计临床计算机系统的需求分析。(C)2004爱思唯尔爱尔兰有限公司保留所有权利。
Objectives: Clinical use of computer systems has been hampered by their poorly designed user interfaces. The objective of this study was to design a user interface for a pediatric oncologists' computerized patient record with great consideration of their working behavior and of human computer interfacing principles so as to contribute to oncologists' efficiency and satisfaction in interaction with the system. Methods: The think aloud method was used in combination with video recording to get a deep understanding of the way in which four pediatric oncologists searched through the paper-based patient record in preparing a patient visit. Protocol and video analyses was used to develop a cognitive task model reflecting pediatric oncologists' task behavior. This model was input for a prototype user interface, which was subsequently evaluated by eight other pediatric oncologists. Results: The resulting computerized medical record system proved to meet pediatric oncologists' information needs and task behavior patterns. The design of the user interface minimized pediatric oncologists' work load and was highly efficient in supporting the pediatric oncologists in preparing their patient visits. The pediatric oncologists were very much satisfied with the computer system. Conclusions: It is argued that early involvement of cognitive engineering methods in the system design process may be of great help in designing systems that fully support health care professionals' work practices. The think aloud method, if applied under prescribed conditions, is a valuable information source of human task-behavior and as such a useful technique for requirements analysis in designing clinical computer systems. (C) 2004 Elsevier Ireland Ltd. All rights reserved.