title: A service brokering and recommendation mechanism for better selecting cloud services.
abstract: Cloud computing is becoming the new generation computing infrastructure, and many cloud vendors provide different types of cloud services. How to choose the best cloud services for specific applications is very challenging. Addressing this challenge requires balancing multiple factors, such as business demands, technologies, policies and preferences in addition to the computing requirements. This paper recommends a mechanism for selecting the best public cloud service at the levels of Infrastructure as a Service (IaaS) and Platform as a Service (PaaS). A systematic framework and associated workflow include cloud service filtration, solution generation, evaluation, and selection of public cloud services. Specifically, we propose the following: a hierarchical information model for integrating heterogeneous cloud information from different providers and a corresponding cloud information collecting mechanism; a cloud service classification model for categorizing and filtering cloud services and an application requirement schema for providing rules for creating application-specific configuration solutions; and a preference-aware solution evaluation mode for evaluating and recommending solutions according to the preferences of application providers. To test the proposed framework and methodologies, a cloud service advisory tool prototype was developed after which relevant experiments were conducted. The results show that the proposed system collects/updates/records the cloud information from multiple mainstream public cloud services in real-time, generates feasible cloud configuration solutions according to user specifications and acceptable cost predication, assesses solutions from multiple aspects (e.g., computing capability, potential cost and Service Level Agreement, SLA) and offers rational recommendations based on user preferences and practical cloud provisioning; and visually presents and compares solutions through an interactive web Graphical User Interface (GUI).
authors.affiliation: NSF Spatiotemporal Innovation Center, George Mason University, Fairfax, Virginia, United States of America; School of Remote Sensing and Information Engineering, Wuhan University, Wuhan, Hubei Province, China.
authors.forename: Zhipeng
authors.initials: Z
authors.lastname: Gui
authors.affiliation: NSF Spatiotemporal Innovation Center, George Mason University, Fairfax, Virginia, United States of America.
authors.forename: Chaowei
authors.initials: C
authors.lastname: Yang
authors.affiliation: NSF Spatiotemporal Innovation Center, George Mason University, Fairfax, Virginia, United States of America.
authors.forename: Jizhe
authors.initials: J
authors.lastname: Xia
authors.affiliation: NSF Spatiotemporal Innovation Center, George Mason University, Fairfax, Virginia, United States of America.
authors.forename: Qunying
authors.initials: Q
authors.lastname: Huang
authors.affiliation: NSF Spatiotemporal Innovation Center, George Mason University, Fairfax, Virginia, United States of America.
authors.forename: Kai
authors.initials: K
authors.lastname: Liu
authors.affiliation: NSF Spatiotemporal Innovation Center, George Mason University, Fairfax, Virginia, United States of America.
authors.forename: Zhenlong
authors.initials: Z
authors.lastname: Li
authors.affiliation: NSF Spatiotemporal Innovation Center, George Mason University, Fairfax, Virginia, United States of America.
authors.forename: Manzhu
authors.initials: M
authors.lastname: Yu
authors.affiliation: NSF Spatiotemporal Innovation Center, George Mason University, Fairfax, Virginia, United States of America.
authors.forename: Min
authors.initials: M
authors.lastname: Sun
authors.affiliation: NSF Spatiotemporal Innovation Center, George Mason University, Fairfax, Virginia, United States of America.
authors.forename: Nanyin
authors.initials: N
authors.lastname: Zhou
authors.affiliation: NSF Spatiotemporal Innovation Center, George Mason University, Fairfax, Virginia, United States of America.
authors.forename: Baoxuan
authors.initials: B
authors.lastname: Jin
mesh_terms: D003199:Computer Systems; D016247:Information Storage and Retrieval; D020407:Internet; D012984:Software; D057188:Workflow