Evaluating usability of computerized physician order entry systems: Insights from a developing nation

Abstract

Background: Electronic prescribing is vital in healthcare systems, providing an efficient alternative to manual prescriptions and addressing issues like errors in writing. This study evaluates Iran's Computerized Physician Order Entry (CPOE) system due to its significant role in the health system. Method: Conducted as a cross-sectional case study in 2023, this research targeted physicians and outpatient unit users in three hospitals affiliated with Kashan University of Medical Sciences. User satisfaction was assessed using the QUIS Questionnaire for user interaction satisfaction and the System Usability Scale (SUS) for overall usability. Statistical analysis included descriptive statistics, independent-sample t-tests, one-way ANOVA, and SUS questionnaire calculation via SPSS software. Result: The QUIS and SUS questionnaires revealed an overall user satisfaction range of 4.65 out of 9 for physicians and 5.73 out of 9 for outpatient unit users. The SUS questionnaire scored the CPOE system at 72 out of 100 for physicians and 76 out of 100 for outpatient unit users, indicating good usability. Conclusion: Iran's CPOE system received positive feedback, emphasizing ease of use, learnability, control, stimulation, and flexibility to user needs. While the evaluation was generally positive, there are areas for improvement. Future versions should address user demands, incorporate human-computer interaction principles, and rectify identified shortcomings for enhanced competency. Authorities should prioritize user-centric updates in the continuous development of the Iranian CPOE system.

Keywords

• Usability
• Evaluation
• CPOE systems
• Developing country