Rekimoto, J. 1997. Pick-and-drop: a direct manipulation technique for multiple computer environments. In Proceedings of the 10th Annual ACM Symposium on User interface Software and Technology (Banff, Alberta, Canada, October 14 - 17, 1997). UIST '97. ACM, New York, NY, 31-39.
Abstract: This paper proposes a new field of user interfaces called
multi-computer direct manipulation and presents a pen-based
direct manipulation technique that can be used for data
transfer between different computers as well as within the
same computer. The proposed Pick-and-Drop allows a user
to pick up an object on a display and drop it on another
display as if he/she were manipulating a physical object.
Even though the pen itself does not have storage capabilities,
a combination of Pen-ID and the pen manager on the network
provides the illusion that the pen can physically pick up and
move a computer object. Based on this concept, we have built
several experimental applications using palm-sized, desktop,
and wall-sized pen computers. We also considered the
importance of physical artifacts in designing user interfaces
in a future computing environment.