基于SLA的业务建模和参数映射算法

为了实现综合、准确的SLA (Service Level Agreement)业务管理，对SLA参数表示及参数映射进行了研究。首先，从不同的视角定义SLA表示参数，提出双向流程分析法提取表示参数，并利用参数映射机制研究各参数之间关系，建立多视点、层次化的SLA业务管理数据模型。其次，引入层次分析方法AHP(Analytic Hierarchy Process)结合不同的判别算法对各层参数进行关联计算，完成了各层参数间的映射。最后，在UMTS网络中建立FTP业务管理数据模型并对参数映射算法进行验证。仿真结果表明了本方法的合理性和有效性。

Research on the SLA-based Service Modeling and Parameter Mapping

For the purpose of implementing integrative and accurate service level agreement(SLA)-based service management,the SLA parameter representation and parameter mapping are studied.Firstly,SLA representation parameters are defined from different perspectives,the analytical method of bidirectional data flow is also proposed to extract representation parameters,and then parameter mapping mechanism is adopted as well to study correlation among data.The hierarchical SLA-based service management data model viewed from multi-perspectives is established.Secondly,analytic hierarchy process(AHP) combined with other different judging arithmetic is introduced to perform correlative computing.It realizes the mapping of representation parameters among sub-layers.Finally,service management data model of file transfer protocol(FTP) service over universal mobile telecommunications system(UMTS) network is built and parameter mapping arithmetic is validated.The simulation results demonstrate that the proposed approach is rational and valid.