Conclusion and Outlook.- Topic I: Individual thinking and acting.- Re-Interpretation of Conceptualisation - A Contribution to the Advance of Design Theory.- On the Importance of the Unconscious and the Cognitive Economy in Design.- Strategic knowledge differences between an expert and a novice designer.- Cognitive economy in design reasoning.- Entropy reduction in mathematical giftedness.- Apperception, content-based psychology and design.- Sketches for Design and Design of Sketches.- Dynamic aspects of individual design activities. A cognitive ergonomics viewpoint.- Individual Thinking and Acting: Summary of Discussion.- Topic II: Interaction between individuals.- Blindfolded Classroom: Getting Design Students to Use Mental Imagery.- Analysis of solution finding processes in design teams.- Processes for Effective Satisfaction of Requirements by Individual Designers and Design Teams.- Manifestation of Divergent-Convergent Thinking in Question Asking and Decision Making Processes of Design Teams: A Performance Dimension.- Towards a Conceptual Framework for Predicting Engineering Design Team Performance Based on Question Asking Activity Simulation.- Collaborative Product Development Considerations.- Managing breakdowns in international distributed design projects.- How Engineering Designers Obtain Information.- Interaction between individuals: Summary of Discussion.- Topic III: Methods, tools and prerequisites.- Improving Design Methods' Usability by a Mindset Approach.- Design Problem Solving: Strands of My Research.- Cognitive Outsourcing in the Conceptual Phase of the Design Process.- Sketching in 3D What should Future Tools for Conceptual Design look like?.- VR/AR - Applications, Limitations and Researchin the Industrial Environment.- Knowledge Deployment: How to Use Design Knowledge.- Reconsidering the divergent thinking guidelines for design idea generation activity.- Designers and Users - an Unhappy Love Affair?.- Methods, tools and prerequisites: Summary of Discussion.- Future Issues in Design Research.

Human Behaviour in Design addresses important aspects of creative engineering design. The main topics are the interaction between two complementary modalities - "image" and "concept", internal and external components of design thinking, and design strategies - both for individual designers and design teams. The goal is to improve and evaluate tools and methods that support design. Although this book is the outcome of an international workshop held in March 2003, it is more than just a collection of its contributions. The papers are arranged into three main topics: Individual Thinking and Acting; Interaction Between Individuals; Methods, Tools and Prerequisites. There are summaries of the discussions of the respective topics written by the chairpersons, conclusions, and an outlook to future issues in design research.