摘要
针对不同应用要求不同的服务QoS,提出了一种UDDI扩展方法来支持QoS约束。该方法引入了XML模式,采用服务元数据,定义了一组对象来描述Web服务的QoS属性;改进了tModel模型,在tModel中增加一个新的数据结构qualityInformation来表示QoS信息;对QoS属性的连续变量进行分段表示,并提出了更新和查找QoS信息的实现方法。实验表明,这种方法能够在网格服务中支持QoS。
In order to meet the different QoS constrains in various kinds of grid applications, an improved UDDI method is proposed. Firstly, a set of objects is defined to describe QoS attributes by introducing XML schema, and then an improved tModel is established by increasing a new data structure to describe QoS information, subsequently the value of QoS attributes is divided into many segments, and how to update discover the QoS information is proposed. Experimental results show that the improved UDDI can be used for grid services discovery.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2007年第10期1674-1676,共3页
Systems Engineering and Electronics
基金
国防预研基金资助课题(51406030104DZ0120)
关键词
统一描述、发现和集成
军事网格
服务质量
tModel
universal description, discovery, and integration
military grid quality of service
tModel
