The Design and Use of a Generic Context Server
Daniel Salber, Gregory D. Abowd · 1998
Although context awareness is a key component for perceptual user interfaces, we lack generic infrastructure for developing context aware applications. We propose a generic infrastructure based on context servers that store, share and archive contextual data. We describe a few applications we have built that take advantage of context sharing and context history. We then turn to the overall design of our context server and analyze in detail its services with a worked example. 1. Introduction Context awareness is recognized as an important feature for ubiquitous and wearable computing. Context sensing and interpretation techniques are maturing and applications demonstrate the value of using context. However, bridging the gap between sensing and interpretation techniques on one hand and applications on the other hand is mostly done using ad hoc techniques. The lack of generic infrastructure requires developers to rely on custom solutions for handling context and hinders the development...