In our book " Things That Keep Us Busy - Elements of Interaction " we make the case that interaction is an activity that has to fulfill certain criteria to be called interaction. We define a "window of interaction" with eight dimensions. Each dimension has to be within a certain range for an activity to be understood or labeled as interaction. This means that not all activities where humans 'use' things or systems are interactions. So, what is everything else, all our encounters with the reality around us, if not interactions? Well, most of the "interactions" with our everyday environment seem better defined as being with . For instance, it does not feel natural to say that we interact with our home (even though this is maybe changing today). Instead, we live in our home. We might interact with people, but that seems to be most appropriate when it is people in specific roles, we usually do not say we interact with our children, spouse, or friend...
Interaction Design, HCI, Philosophy of Design, Technology and Society