This paper examines the impact of using ‘digital’ media on design thinking. Conjectures about design behaviour were formulated and tested in a ‘groups-design’ experiment where subjects were given a design task and encouraged to execute it using a Computer Aided Design (CAD) programme. Atti-tudes toward several design parameters were monitored using observations, questionnaires, and few structured interviews. The completed design schemes were also analysed. The Statistical Programme for Social Sciences (SPSS) was used for measuring attitudes towards three design areas: ideation (including fluency, variety, complexity and creativity), materiality, and light. The findings suggest a difference in attitudes between ‘intensive’ and ‘occasional’ CAD users toward the design process. Intensive users suggested that the use of CAD helped their pursuit and preference for complexity as well as their ideation fluency and design synthesis and, in turn, their overall design creativity.