HCI inspire dynamic design ?

By nature, computational systems are temporal machines. For more than 50 years, the discipline of HCI or human-computer interaction, has explored how people behave with dynamic objects like buttons, scrollbars or more recently tangible interfaces and ubiquitous environments. In the same time, a significant and complex culture has emerged: digital affordances are now familiar for users. Can this culture be transferred to dynamic product design ? This paper presents some of the insights raised by the HCI community, with a focus on interaction models and semantics. More precisely, it introduces the model of Instrumental Interaction created by Beaudouin-Lafon and illustrates some of its properties with tangible and gesture-controlled objects.