The Frame (by Tollmar et al, 2000)

The Frame informs the partner whether the remote partner is at home or not. The receptor was to be put on a key ring or in a wallet and it would indicate whether a person is at home or not. The receptor transmits signals to the frame where a picture of the remote partner arises. As soon as the person leaves home, it will be dimmed.

Source: Tollmar, K., Junestrand, S., and Torgny, O. 2000. Virtually living together. In Proceedings of the Conference on Designing Interactive Systems Processes, Practices, Methods, and Techniques (DIS’00). ACM Press, 83–91.

Technology and Artifacts | UX-Relatedness