Usabilidade de um aplicativo para orientar o cuidado neonatal: o Preemie Care

Abstract

Introduction: Mobile applications must be functional and have good usability and acceptance in order to fulfill their purposes with users. This study aims to assess the usability of the Preemie Care application from tools broadly used such as the Heuristics assessment and the "System Usability Scale" (SUS). The application was designed to be used by healthcare professionals in scenarios with low technologica l density. Methods: After installing the application, 15 expert evaluators answered a questionnaire containing questions with the proposed instruments. Results: The average age of the evaluators was 37 years, and 40% had participated in at least one usability evaluation. In all 10 Heuristic evaluations, the median of the responses reached the maximum score indicatin g a high level of usability. The SUS assessment score was 88%, which means an acceptable and excellent overall usability. Discussion: The number of evaluators proved to be sufficient to detect most usability problems. However, even receiving the highest score in the items of the Heuristic evaluation, there was at least one usability problem in each item evaluated. Conclusion: The study reached its objective by producing important information for implementing fixes and improvements to the application.