Abstract: “The advent of Cloud computing & the rapid adoption of Cloud services (IaaS, PaaS, SaaS) by the consumer to fulfil their business requirements has flourished the market with various Cloud Service Providers (CSP). Cloud service providers are developing the desired environment and tools to serve the consumer’s needs. The consumers are facing the problem of selecting the appropriate Cloud service provider which can fulfil their need. This scenario which requires fast and controlled mechanism of managing resources, cost, capacity etc gives rise to the Cloud brokering system. The Cloud broker offers the opportunity to the consumer to get the best service as per service level agreement. In this paper, we are providing an overview of few Cloud brokerage models and there techniques used to select the best CSP from the pool of CSPs”

Keywords: Brokerage, Broker Model, Broker Service, Cloud, Cloud Computing .