This paper introduces a grid-enabled and SOA-based SaaS application platform, which is named GridSaaS. The major contributions of the GridSaaS platform are: (1) construction of a value-added supply chain of SaaS applications; (2) adoption of grid technologies to deliver SaaS applications in high level maturity model; (3) rapid development and delivery of new SaaS applications; (4) well-designed solutions for the requirements of integration in UI layer, process layer and data layer.
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