User-Centered Design and Usability Testing of an Air Handling Unit testing application

In recent years, the design of user interfaces and user experience has become more relevant in companies due to the need to optimize the interaction between users and complex interactive systems. This study aims to establish design guidelines to improve the user experience in engineering applications in teams of Air handling unit testing engineers. A redesign process of a handling unit testing application was conducted using a user-centered design approach through in-depth interviews, user profiling, interactive prototyping, and usability testing. The results obtained showed a significant improvement in usability and user experience by implementing the fundamentals and principles of user-centered design. This case study highlighted the fundamental role of user interface and user experience design so that user interface designers and engineers can reference the learnings and findings to improve their applications to optimize the tasks of handling unit testing engineers.