Context is key

Authors: Joëlle Coutaz, James L. Crowley, Simon Dobson, David Garlan - Communications of the ACM, CACM 2005 cited by 493

Context is not simply the state of a predefined environment with a fixed set of interaction resources. It's part of a process of interacting with an ever-changing environment composed of reconfigurable, migratory, distributed, and multiscale resources.