Design patterns: elements of reusable object-oriented software
Design patterns: elements of reusable object-oriented software
Pervasive computing handbook
Advanced Interaction in Context
HUC '99 Proceedings of the 1st international symposium on Handheld and Ubiquitous Computing
The Location Stack: A Layered Model for Location in Ubiquitous Computing
WMCSA '02 Proceedings of the Fourth IEEE Workshop on Mobile Computing Systems and Applications
Providing architectural support for building context-aware applications
Providing architectural support for building context-aware applications
Supporting generalized context interactions
SEM'04 Proceedings of the 4th international conference on Software Engineering and Middleware
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The purpose of this article is to describe a middleware framework for interfacing sensors and actuators, which provides abstract and useful contextual information to applications. The framework is divided into three layers with different abstraction levels, and an integration layer. The framework is evaluated, exemplified, and further described by practical implementations using the framework.