Designing the user interface is a key part in the development of any computer system. The designer needs to ensure that the system has adequate usability - it must do what is required and be easy to use. This book shows you how to design the user interface in a systematic and practical way. It bridges the gap between traditional programming perspectives, which often see the user interface as an afterthought, and human-computer interaction approaches, which are more user-centric but give little guidance on screen design and system development.Features Uses the Virtual Window Method to define the right screens and transform them into a full user interface. Illustrates the method with several complex applications. Shows how user interface design relates to systems development and object-oriented approaches. Unique structure of the text makes it ideal for undergraduate students, IT conversion course students and professional courses. Accompanying website with supplementary material for both tutors and students at www.booksites.net/lauesen .Soren Lauesen has over 20 years of industrial experience and 20 years of research experience. He is currently full professor at the IT University of Copenhagen. He is the author of Software Requirements: Styles and Techniques also published by Addison-Wesley.