数字流域环境下信息共享服务研究  

Information sharing services under digital basin environment

作　　者：许国艳[1] 李晓芳[1] 王志坚[1] 

机构地区：[1]河海大学计算机及信息工程学院,江苏南京210098

出　　处：《河海大学学报（自然科学版）》2009年第5期573-577,共5页Journal of Hohai University(Natural Sciences)

基　　金：国家自然科学基金(60573098);河海大学自然科学基金(2008430011)

摘　　要：为了提高数字流域环境下信息共享的能力,基于SOA体系结构,引入发布/订阅技术的思想,提出了一种数字流域环境下信息共享服务框架.该框架在面向服务的平台中提供了:事件驱动支持,满足了平台的松散耦合通信与协同需求;一种松散耦合的信息共享服务方式,达到了时间解耦、空间解耦和同步解耦,增强了平台的可复用性和可扩展性;一种主动的协同信息共享服务方式,更好地满足了信息共享的灵活性、主动性.具体探讨了服务生成和服务订阅模型和流程,通过领域本体的引进增强了服务描述和订阅描述的能力,解决了语义的问题.In order to improve the information sharing under the digital basin environment, a framework of information sharing services under the digital basin environment was put forward based on the SOA architecture and the publishing/ subscription technique. It provided an event-driven communication pattern in the service-oriented platform, and the loose coupling demand of communication and coordination was satisfied. A loose coupling of the sharing information service mode was provided. As a result, the time decoupling, space decoupling and synchronous decoupling were reached. The reusability and expansibility of the platform were enhanced. A kind of active coordination information sharing service mode was provided so that the flexibility and initiative of the information sharing were satisfactorily achieved. The service production and service subscription were discussed. By introducing the domain ontology, the description ability of services and subscription was enhanced. Accordingly, the semantic problems were solved.

关 键 词：数字流域 信息共享服务 发布/订阅 面向服务的体系结构 领域本体 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]