ISO 9241-11

ISO 9241-11 is an international standard that defines how to measure and improve the user experience when interacting with computer systems. It emphasizes three key factors: effectiveness (can users complete tasks accurately), efficiency (how quickly they can do so), and satisfaction (how comfortable and positive they feel about the experience). By assessing these aspects, organizations can design and optimize systems to better meet users' needs, ensuring that technology is both usable and effective in real-world tasks.