摘要：Nowadays, context-aware systems are developed by gathering context data and adapting systems behavior accordingly. The purpose of this paper is to examine four architectural pattern context-aware systems in terms of the ability to be implemented. The pattern which can overcome the complexity of these systems and can be more extensible is better to be implemented. This paper is based on a review of Architectural pattern context-aware systems from 2005 to 2009. The patterns include notes on: Example, Problem, Solution, Structure and Benefit. Finally, we will then focus on advantages to be implemented of each pattern.
