审计模拟系统柔性服务平台的设计与实现

Design and implementation of flexible service platform in cloud computing environment for analog auditing system

为有效实现审计模拟系统所包含的环境模拟、方案模拟、数据审计模拟、信息系统审计模拟在内的主要功能,基于服务计算领域中的层次覆盖网理论(service overlay network,SON)设计并提出了一款云计算环境下分层的审计模拟系统体系架构,用以解决审计实务中对计算、存储、网络等基础设施资源及服务的紧耦合与个性化定制问题;在此基础上提出了一种动态自适应的审计资源柔性调度策略及组合方法,即通过将全局服务质量QoS(quality of service,QoS)约束分解映射为局部约束条件进而完成最佳服务实例的选择,进而支撑模拟审计业务所需要的服务资源的调度、组合与实时响应。仿真实验结果表明,该柔性服务平台实现了对审计资源的高效利用,使得审计任务执行效率显著提升,为今后更好地开展大数据审计提供理论基础与实践依据。

Analog auditing system is an important part of the healthy development of national digital auditing.It provides auditors with a simulation platform of“Actual Exercise”which offers audit knowledge acquisition,experience learning and practice application.In order to effectively achieve the main functions of audit simulation system,including environment,scheme,data and information system analog auditing,this paper designs and proposes a hierarchical analog auditing system architecture based on Service Overlay Network(SON)in the field of service computing realize the tight coupling and personalized customization of computing,storage,network and other infrastructure resources.Furtherly,a dynamic adaptive flexible audit resource scheduling strategy and composition method are proposed.Specifically,it depends on decomposing global quality of service(QoS)constraints into local constraints to acquire the selection of the best service instance,in order to support the scheduling,composition and real-time response of the necessary resources.The simulation results show that the flexible service platform achieves the efficient use of audit resources,and improves the efficiency of audit task,which can be the theoretical and practical foundation for better big data auditing in future.