Introduction: Bridging the Design Gap, Bridging User Needs to OO GUI Prototype via Task Object Design, Transforming Representations in User-Centered Design, Model-Based User Interface Design, Lightweight Techniques to Encourage Innovative User Interface Design, Interaction Design: Leaving the Engineering Perspective Behind, Mind the Gap: Surviving the Dangers of User Interface Design, Transforming User-Centered Analysis into User Interface: The Redesign of Complex Legacy Systems, Systematic Creativity: A Bridge for the Gaps in the Software Development Process, The UI War Room and Design Prism: A User Interface Design Approach from Multiple Perspectives, Transforming User-Centered Analysis into User Interface: The Design of New-Generation Products