Our world is get instrumented, augmented, and enhanced at a stunning rate. Digital displays, touchscreens, and sensors are blooming on even the most mundane surfaces from laundry machines to taxicabs. Each of these interfaces seem to have an internal logic that is not self-evident. It is like they are speaking slightly different languages from each other.
via Why Does Interaction Design Matter? Let’s Look At The Evolving Subway Experience | Co. Design.