普适计算软件体系结构研究

Research on Software Architecture under Pervasive Computing Environment

普适计算强调人、计算机以及环境的相互融合,这就对传统的软件技术提出了挑战。需要新型的软件架构与之相适应。本文以普适计算环境下的通用软件架构设计为目标,采用面向服务组件和分层次的设计原则,通过中心服务器的管理机制和服务整合的方法,提出了一种基于Kerberos认证机制的、面向服务的普适计算软件体系结构。这个软件架构的提出,解决了普适计算环境下设备的本地资源受限性、任务多样性、运行环境的异构性和访问的安全性等一系列问题;并将此软件架构应用于"普适计算智能办公系统"的软件实现中。

Pervasive computing lays emphasis on the seamless integration of users, devices and environment, which challenges the traditional software technology and requires innovational software architecture. Obviously, software architecture plays a key role in pervasive computing. The service-oriented components and the layered design principle are adopted in order to design general software architecture under the pervasive computing environment. Using the management mechanism of the center server and integration of component services, a general architecture is put forward, which is service-oriented, based on Kerberos authentication mechanism, and open architecture. This service-oriented software architecture resolves many issues in pervasive computing environment, such as local resources limitation, variety of applications, heterogeneous platforms and access security etc. This software architecture is applied to and implemented in the ＂intelligence office system in pervasive computing environment＂.