Software development stages can represent a challenge due to the increase of final user demands since it must comply with standards and metrics that assure the quality of the final product, especially when related to the interface structure, considering that this could lead to the software failure or success. In the case of software oriented to project management, it is important to present them as a simple and practical tool to avoid generating a lack of interest in the final user. Therefore, in this study, we focus on the usability application process for a project management software reinforced with machine learning by analyzing requirements and integrating Nielsen usability guidelines in the design stage of the traditional methodology applied in the software development. The results show that the elements of the graphical interface were easily endorsed enabling a close up to a user-friendly software in the management of PM4r projects.