Um estudo exploratório sobre métodos que apoiam o levantamento e especificação de requisitos de usabilidade e experiência do usuário

Abstract

Taking quality aspects into account from the earliest stages of the development process is fundamental to increasing the project’s chances of success, avoiding rework and ensuring end-user satisfaction. However, in the context of agile development, a common challenge is the neglect of these requirements, leaving them in the background. To address this issue, researchers have dedicated themselves to developing approaches that help incorporate non- functional requirements, such as Usability, into the main artifact used in agile methodologies, the User Story. This study identified two recent methods, USARP (USability Requirements with Personas and user stories) and ACUX (Acceptance Criteria of User eXperience), used for eliciting and specifying usability requirements and user experience acceptance criteria. This research aims to compare different methods for eliciting and specifying artifacts aimed at improving software quality. Adopting a controlled empirical methodology, the participants were subjected to a simulated software problem scenario. Data collection, covering both quantitative and qualitative aspects, aimed to assess the effectiveness, efficiency, perceived ease of use and usefulness of the methods. The quantitative analysis highlighted significant differences in the performance of the methods, highlighting the perceived superiority of one of them in terms of ease of use. In the qualitative analysis, feedback from participants revealed preferences and challenges faced in relation to each method, pointing to areas for possible improvement. In addition, the ability of the methods to specify functionalities for implementation in the system and describe user interactions with the system was presented. It is hoped that the results obtained can provide clarity to professionals and researchers in the field, guiding them in choosing the most appropriate methods and thus contributing to improving usability and user experience in the software development process.