Development and usability evaluation of an informative web platform about Down Syndrome:

a case ctudy in Dourados-MS

Abstract

Down Syndrome (DS) affects the physical and cognitive development of thousands of individuals, and their families and caregivers often face difficulties accessing reliable information and specialized resources. This study presents the development and validation of the InfoSD web platform, dedicated to disseminating information about DS in the Dourados-MS region. The platform offers accessible and practical resources for families, educators, and health professionals, including: an interactive map of specialized clinics (implemented with Leaflet.js and geolocation APIs), a library of educational materials, educational games, and a chatbot for automated support. The system was developed using Vue.js and Quasar Framework, with data management via Supabase, and deployed on Netlify. The usability validation, conducted with 33 participants from the region using the System Usability Scale (SUS) methodology, resulted in a mean score of 87.42 points, classifying the platform as “Excellent” and confirming high effectiveness, efficiency, and user satisfaction. The results demonstrate that 69.7% of participants rated the system above 85 points, indicating the solution's potential to promote digital inclusion and facilitate access to health information in the region.

Keywords: Down Syndrome; Web platform; Usability; Digital inclusion; System Usability Scale.