Introduction to Usability Engineering. Usability Engineering Lifecycle. Information Architecture: Process and Practice. The User and the Task. Usability Metrics. Usability evaluation. Design Heuristics and Expert Evaluations. Interface Standards. Usability Engineering for portable and handheld devices (Mobile Usability). User-Centered Requirements Engineering. Psychological Issues in User-Centered Design. Social, contextual and organizational aspects of user centred interactive systems. User-Centered Design Methods. Models of the User in design. Evaluation and User-Centered Design. User-Centred Design for web-based interaction.