Development of a Web-Based Human-Computer Interaction System to Improve Medication Adherence among Patients with Chronic Conditions

Abstract

Medication non-adherence remains a critical global health challenge, particularly among patients with chronic illnesses. This study addresses the issue by developing a web-based medication reminder system grounded in Human-Computer Interaction (HCI) principles. The system is designed to be simple, accessible, and personalized, with the goal of supporting medication routines in low-resource settings. Using HTML, CSS, JavaScript, PHP, and MySQL, a modular and scalable platform was built incorporating personalized notifications, intuitive navigation, and responsive design. The study adopted a design and development research methodology, applying the Incremental Software Development Model to ensure iterative refinement and integration of user feedback. A key focus was placed on evaluating the system’s usability rather than directly measuring adherence outcomes. Usability testing involving 10 participants yielded a System Usability Scale (SUS) score of 82, indicating strong user satisfaction and ease of use. Participants highlighted the system’s clean interface, effective reminder features, and accessibility across various devices without the need for app installation. By prioritizing user-centered design and HCI strategies, this research presents a viable, low-cost solution for enhancing engagement with medication management tools. The system’s browser-based nature and infrastructure independence make it particularly suited for deployment in underserved communities. While future studies are needed to assess its direct impact on adherence behaviour, the current findings demonstrate high usability and user acceptance—critical precursors to long-term adoption and effectiveness.