Nair Kalpana Maria, Malaeekeh Raheleh, Schabort Inge, Taenzer Paul, Radhakrishnan Arun, Guenter Dale
Department of Family Medicine, McMaster University, Canada.
Department of Psychiatry, University of Calgary, Canada.
J Innov Health Inform. 2015 Aug 13;22(3):329-32. doi: 10.14236/jhi.v22i3.149.
Clinical decision support systems (CDSSs) that are integrated into electronic medical records may be useful for encouraging practice change compliant with clinical practice guidelines.
To engage end users to inform early phase CDSS development through a process of usability testing.
A sequential exploratory mixed method approach was used. Interprofessional clinician participants (seven in iteration 1 and six in iteration 2) were asked to 'think aloud' while performing various tasks on the CDSS and then complete the System Usability Scale (SUS). Changes were made to the CDSS after each iteration.Results Barriers and facilitators were identified: systemic; user interface (most numerous barriers); content (most numerous facilitators) and technical. The mean SUS score was 81.1 (SD = 12.02) in iteration 1 and 70.40 (SD = 6.78) in iteration 2 (p > 0.05).
Qualitative data from usability testing were valuable in the CDSS development process. SUS scores were of limited value at this development stage.
集成到电子病历中的临床决策支持系统（CDSS）可能有助于推动符合临床实践指南的实践变革。
通过可用性测试过程让最终用户参与，为CDSS的早期开发提供信息。
采用顺序探索性混合方法。跨专业临床医生参与者（第1轮7人，第2轮6人）在CDSS上执行各种任务时被要求“边想边说”，然后完成系统可用性量表（SUS）。每次迭代后对CDSS进行更改。结果确定了障碍和促进因素：系统方面；用户界面（障碍最多）；内容（促进因素最多）和技术方面。第1轮的SUS平均得分为81.1（标准差=12.02），第2轮为70.40（标准差=6.78）（p>0.05）。
可用性测试的定性数据在CDSS开发过程中很有价值。在这个开发阶段，SUS分数的价值有限。
