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Quality Perception And Evolutionary Simulation In Transboundary Services

Posted on:2021-01-20Degree:MasterType:Thesis
Country:ChinaCandidate:S ZengFull Text:PDF
GTID:2428330611998187Subject:Computer technology
Abstract/Summary:PDF Full Text Request
In recent years,massive intelligent business services have appeared in every walk of life with the development of internet technology.However,with the change of user demands,single service can no longer satisfy their demands,as a result,the concept of service composition has emerged.These combined services are distributed throughout the whole internet and cross the boundaries of different industries,organizations and regions while the services within different boundaries are relatively independent,which are called as transboundary services.Owing to the diversification of transboundary services,service quality perception has become a research hotspot.Meanwhile,for the purpose of enhancing the quality of transboundary services,some researchers have proposed a framework that can automatically evolve and dynamically adjust the service deployed in cloud and edge environments according to the changes of user demands so as to satisfy users all the time,but it tends to be verified by one or two examples only without much persuasion.In order to verify more service usage scenarios,a simulation tool is needed to simulate the real service usage scenarios of users within one region,simulate the changes of users and their demands as well as the evolution of service examples,and provide the change of service quality based on these changes so as to provide basis for verifying the reasonableness of service evolution framework.Aiming at the above two problems,this paper establishes the server response time model and availability model to provide reference for service quality judgment,and conducts detailed research from the following three aspects:(1)Design and implementation of service quality perception system for transboundary services: This part is mainly to recover the perceived discrete data to be a complete service scenario system in the router network through collecting the transboundary service data.By the means of uploading state diagrams representing the service state in a specific format and configuring the routing information,the system will split the state,analyze the quality meaning contained in each state transition of related data from start to end,and finally output corresponding service quality report.(2)Research on service simulation object and corresponding simulation strategy: This part centers on researching the service simulation object and corresponding simulation strategy,which is used to serve the system in next research.In this part,the users,user demand and service simulation should be researched,and corresponding simulation strategies should be provided.(3)Design and implementation of evolution simulation system for transboundary services: this part focuses on establishing the system for recovering the real service usage scenario in one region,simulating the changes of users and their demands as well as the evolution of service examples,which can simulate actual usage scenarios after operation and output simulation result report according to scenario change.
Keywords/Search Tags:service composition, transboundary services, service quality perception, evolution simulation
PDF Full Text Request
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