Interaction designers are responsible for understanding and specifying how the product should behave. This work overlaps with the work of both visual and industrial designers in a couple of important ways. When designing physical products, interaction designers must work with industrial designers early on to specify the requirements for physical inputs and to understand the behavioural impacts of the mechanisms behind them.
Interaction designers’ cross paths with visual designers throughout the project. In our practice, their collaboration begins early, as visual designers guide discussions of the brand and emotive aspects of the experience in discussions with users and the extended team.