上下文感知是遍布计算中的一项重要技术,其应用已经成为下一代网络环境中业务开发的一个热点。为了更好地支持下一代网络中的上下文感知业务提供,结合上下文感知概念和面向服务的思想提出上下文服务,给出了适合于下一代网络环境的上下文感知业务提供通用框架CASPGA(Context—Aware Service Provision General Architecture),并详细讲述其功能结构和实现技术,从而可以更加方便地开发出各种上下文感知应用。
Context-aware is an important technology in pervasive computing. Context-aware application has been the hot spot of service development in NGN (Next Generation Network) environment. In order to better support the context-aware service provision in NGN which fentures the combination of context-aware concept with service- oriented computing, CASPGA(Context-Aware Service Provision General Architecture) is proposed in this paper. Its functional architecture and implementing technologies are discussed in details.