UCD and the next generation of interactive technology User-centered design, or UCD, is a comprehensive proprietary software development methodology driven by (1) clearly specified, task-oriented business objectives and (2) recognition of user needs, limitations, and preferences. Information collected using UCD analysis is scientifically applied in the design, testing, and implementation of products and services. When applied correctly, a UCD approach meets both user needs and the business objectives of the sponsoring organization.For decades, UCD has been used successfully in the design of products, services, and user environments in several industries including telecommunications, pharmaceuticals, and the military. It is safe to say that without UCD methods many of the great advances of the last 50 years would not have been possible, including manned space flight, commercial aviation, mass communications, and computer advances (including the graphical user interface). The point is that all of these industries have used professional UCD methods to create design solutions that are a brilliant mix of human capabilities and advanced technology. Based on this experience, the following has been clearly established: The design of screen-based systems must be driven by features and functions that match the cognitive limitations and capabilities of the user.