Community clouds - A centralized approach

Abstract

Community cloud is one of the rising ideas in the area of cloud computing. Many companies do not move into the cloud, as they need tailored solutions to ensure industry specific security and regulatory requirements. A community cloud can perfectly fulfill this requirement and costs can be spread among several organizations. Providing a community cloud involves aspects like security, privacy, identification and access management that includes lot of organization. This prevents providers and users to build a community cloud despite its advantages. However, until now it is not as widely spread as other deployment models like public or private clouds. One reason is that providing a community cloud needs a lot of organizational effort and communication. Additionally no standard concept for doing this is elaborated so far. Some providers are offering community clouds or certain organizations build one. Nevertheless, each community cloud underlies a different approach. This paper discusses the federated and brokered approaches. Additionally, a centralized approach on how a community cloud can be built will be introduced.