Ebnehoseini Zahra, Tara Mahmood, Meraji Marziyhe, Deldar Kolsoum, Khoshronezhad Farnaz, Khoshronezhad Sanaz
Students Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Department of Medical Informatics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Open Access Maced J Med Sci. 2018 Nov 10;6(11):1941-1945. doi: 10.3889/oamjms.2018.392. eCollection 2018 Nov 25.
Admission, discharge and, transfer (ADT) process is one of the most important hospital workflows. ADT system is a part of a hospital information system (HIS).
The objective of this study was to evaluate the usability of the ADT system.
The study performed at Mashhad University of Medical Sciences (MUMS) hospitals. Data collection instrument was a validated checklist of Pierotti heuristic evaluation. To determine the severity of usability problems, a hybrid of Nielson and Tampere unit for computer-human interaction (TAUCHI) severity scaling algorithm was used. Usability problems were divided into five categories (major, severe, minor, cosmetic, and technical). Six experts evaluated the ADT system independently. According to TAUCHI severity scale, if a feature has not yet been implemented in the ADT system, evaluators considered it a technical usability problem. Therefore, usability problems due to non-design feature in the ADT system were identified. Finally, the mean severity of each usability problems was calculated.
A total of 186 usability problems were identified. The frequency of major, sever, minor and cosmetic usability problems were 2, 65, 69 and 50, respectively. A total of 55 usability problems by the evaluators were recognised as technical problems. The highest mismatch with usability principles was related to the "recognition rather than recall". The range of the mean severity of usability problems was between 0-2.31.
Our result showed that although implementation of IHIS on a large scale, it still suffered from unresolved usability problems. Identification of usability problems and evaluation of their level of severity, which was simultaneously performed in this study, can be used as a guide to evaluate the usability of other HISs.
入院、出院及转科（ADT）流程是医院最重要的工作流程之一。ADT系统是医院信息系统（HIS）的一部分。
本研究旨在评估ADT系统的可用性。
本研究在马什哈德医科大学（MUMS）的医院进行。数据收集工具是经过验证的皮耶罗蒂启发式评估清单。为确定可用性问题的严重程度，使用了尼尔森和坦佩雷人机交互单元（TAUCHI）严重程度缩放算法的混合方法。可用性问题分为五类（主要、严重、次要、外观和技术）。六位专家独立评估ADT系统。根据TAUCHI严重程度量表，如果ADT系统中尚未实现某个功能，评估人员将其视为技术可用性问题。因此，确定了ADT系统中由于非设计功能导致的可用性问题。最后，计算每个可用性问题的平均严重程度。
共识别出186个可用性问题。主要、严重、次要和外观可用性问题的频率分别为2、65、69和50。评估人员共识别出55个可用性问题为技术问题。与可用性原则最不匹配的是“识别而非回忆”。可用性问题的平均严重程度范围在0-2.31之间。
我们的结果表明，尽管大规模实施了综合医院信息系统（IHIS），但它仍然存在未解决的可用性问题。本研究同时进行的可用性问题识别及其严重程度评估可作为评估其他医院信息系统可用性的指南。
