Business Grid: Combining Web Services and the Grid

The common overarching goal of service bus and Grid middleware is "virtualization" --- virtualization of business functions and virtualization of resources, respectively. By combining both capabilities a new infrastructure called "Business Grid" results. This infrastructure meets the requirements of both business applications and scientific computations in a unified manner and in particular those that are not addressed by the middleware infrastructures in each of the fields. Furthermore, it is the basis for enacting new trends like Software as a Service or Cloud computing. In this paper the overall architecture of the Business Grid is outlined. The Business Grid applications are described and the need for their customizability and adaptability is advocated. Requirements on the Business Grid like concurrency, multi-tenancy and scalability are addressed. The concept of "provisioning flows" and other mechanisms to enable scalability as required by a high number of concurrent users are outlined.

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