Design is today seen as a successful approach for the development of new, innovative and creative interactive products and services. There are many attempts at improving the interaction design process, especially by developing new approaches, methods, tools and techniques that would support interaction design practitioners. However, not much research has been done to examine what design methods practitioners actually use, why they use them, and how they understand methods. At the same time, there is almost no research examining the intentions, goals, principles, and thinking guiding those who develop new design methods.
Our research is therefore focused on an overlooked aspect in the field of human centered interaction design, namely how design-practitioners understand their own practice, their design process and how they evaluate, select, and adapt design methods (approaches, methods, techniques, and tools) for their own design process needs.