Usability
Usability is a quality attribute that assesses how easy user interfaces are to use, focusing on learnability, efficiency, memorability, error prevention, and user satisfaction. It is a core principle in user-centered design and human-computer interaction, ensuring that products are intuitive and accessible to their intended audience. In software development, usability directly impacts user adoption, productivity, and overall success of applications.
Developers should learn usability principles to create software that is not only functional but also user-friendly, reducing support costs and increasing customer retention. It is critical in web and mobile app development, enterprise software, and any product where user experience influences business outcomes. Understanding usability helps in designing interfaces that minimize cognitive load and prevent user errors, leading to higher engagement and satisfaction.