1. words 2. visual representations — typography, icons and more: what the user ‘sees’ 3. physical objects and space — I think of this as ‘context’, whether — in our world of government services — the interface is sat on a desktop, in the user’s hand, used on a flaky mobile network, in an office or home, in a public space, on the move 4. time — things that change over time like sound and video
Why we call it interaction design
Andrew Travers
691

This is spot on.

One clap, two clap, three clap, forty?

By clapping more or less, you can signal to us which stories really stand out.