Current market laws ask for new product development methods and tools dealing with both technological and interaction related issues. Starting from this, the research described in this paper aims at finding and exploiting some TRIZ tools in interaction design field of practice. TRIZ theory offers well defined and structured methods and tools, and allows generation of generic guidelines for innovative design of a huge variety of products. Interaction design focuses on studying and developing a correct interaction between users and products, in order to maximize cognitive compatibility. Real goal of this research is developing a new design method where systematic approach to innovation of TRIZ compensates for some lacks of the user centered interaction design process. Starting from similarities and differences between tools currently used in these two domains, the research considers the TRIZ thirty-nine features, the forty inventive principles, and the contradiction matrix. These elements are adapted to the requirements of the interaction design field of practice, obeying to classic usability rules. These new elements contribute to the definition and development of a new design framework named interaction design guidelines - IDGL. The effectiveness of these elements has started to be tested in a case study focused on the interaction design of a new DVD recorder.
