Usability Evaluation of a Military Medical Center’s Hospital Information System Based on ISO 9241

Due to the importance of hospital information systems to improve the quality of health care services, their evaluation has a special place in various aspects. For measuring the quality and efficiency of information systems, an important method involves evaluating them with a usability approach. The aim of this study was usability testing of the hospital information system of a police medical center based on ISO 9241 -11.

This descriptive cross -sectional study was conducted in one of the selected medical centers of the police force among the users of the hospital information system in 2021 (110 participants). Data were collected through a questionnaire with 35 questions based on IsoMetrics tool. The questionnaire questions were classified into 7 groups and each of them indicated the usability criterion in the ISO 9241 -11 standard. The validity of the questionnaire was assessed by medical informatics specialists and its reliability was assessed by the repeatability test (0.7). The results of the survey were statistically analyzed using SPSS 26 software.

23 samples were excluded from the study due to incomplete questionnaires (N=87). The user mean work experience was 10.62±6.14 years, with a minimum of less than one year and a maximum of 22 years. Nurses had the highest satisfaction (3.44±0.36) and pharmacy users had the lowest satisfaction (2.41±0.11) in the information system. In this study, self - descriptiveness of the information system had the highest mean (3.44±0.63) and controllability had the lowest mean (3.13±0.55). In this study, information system self -description had the highest mean score and controllability had the lowest score

Although the status of the hospital information system was satisfactory, more attention to usability criteria such as controllability and suitability for individualization can improve the quality and efficiency of the current system.