基于移动Agent检测QoS的分级查询UDDI模型

A classification querying UDDI model based on mobile agent QoS inspection

传统UDDI(统一描述、发现和集成)注册中心并未对Web服务进行过多约束,用户完成服务查询后还要再人工筛选出满足自己服务质量要求的服务.通过为UDDI注册中心添加移动Agent QoS检测模块,使UDDI注册中心具有主动QoS检测能力;同时将其按照存储服务类别不同划分为多个UDDI单元,并添加分级查询中间件模块来对用户查询信息进行预处理,减轻移动代理检测模块的工作压力.实验结果分析表明,该模型提供的QoS指标可以方便用户进行服务选择,且查询响应时间也优于传统单一UDDI注册中心独立完成全部服务注册和查询的工作方式.

Traditional UDDI （universal description, discovery, and integration） register center dose not set strict restriction on Web service＇s QoS（quality of service）. Web Service consumers have to check out which service can meet their QoS requirements by manual work afterwards. In order to make the UDDI register center inspect QoS actively, mobile agent QoS inspection module is added; the UDDI register center is divided into several units according to different service type and classification query middle ware is added to alleviate the work pressure of mobile agent. Comprehensive simulations were conducted and the results show that QoS index provided by this model can help user easily make choice and compared with traditional mode this model can provide faster response.