The user interface usability of the nursing information system (NIS) should be such that the nurses can learn and interact with it easily and quickly. Therefore, it is necessary to identify and solve the usability problems of these systems. The present study aimed to evaluate the usability of a NIS using the cognitive walkthrough (CW) evaluation method. Based on five selected scenarios, five evaluators evaluated the NIS in Shafa Hospital Information System. After identifying the problems, the evaluators assigned each problem to one of the usability attributes. The severity of each identified problem was determined by the evaluators and five real users of the system. In total, 24 unique problems were identified. The average severity of the problems was determined by the evaluators (2.77) and the actual users (2.82) in the "major problem" category. The highest number of problems were assigned to the scenarios 3 and 2 with 15 and 14 problems, respectively. The highest average severity in terms of evaluations and actual users was related to the scenario 5 (3.06 and 2.94, respectively), which was in the "major problem" category. The highest number of problems were associated with learnability (8 problems) and efficiency (6 problems). Since most of the nurses do not have enough time for learning the system, and given that the selected scenarios for evaluation were based on the most frequent daily tasks that nurses performed using the NIS; The correction of usability problems in the scenarios 3 and 2 that had the highest number of problems and the scenario 5 that had the highest average severity and execution time; it can reduce the nurses' cognitive load and the learning time of the system and increase the efficiency of nurses.

中文翻译：

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应用认知走查法评价护理信息系统的可用性

护理信息系统（NIS）的用户界面可用性应使护士能够轻松快速地学习并与之交互。因此，有必要识别并解决这些系统的可用性问题。本研究旨在使用认知演练（CW）评估方法来评估 NIS 的可用性。根据选定的五个场景，五位评估人员对沙发医院信息系统中的NIS进行了评估。确定问题后，评估人员将每个问题分配给可用性属性之一。每个已识别问题的严重性由评估人员和系统的五个实际用户确定。总共发现了 24 个独特问题。问题的平均严重程度由“主要问题”类别中的评估者（2.77）和实际用户（2.82）确定。场景 3 和场景 2 分配的问题数量最多，分别有 15 个和 14 个问题。就评估和实际用户而言，最高的平均严重性与场景 5 相关（分别为 3.06 和 2.94），属于“重大问题”类别。最多的问题与可学习性（8 个问题）和效率（6 个问题）有关。由于大多数护士没有足够的时间来学习该系统，并且考虑到所选择的评估场景是基于护士使用 NIS 执行的最频繁的日常任务；修正了问题数量最多的场景3和2以及平均严重性和执行时间最高的场景5中的可用性问题；可以减少护士的认知负荷和系统的学习时间，提高护士的工作效率。