A metadata-driven cloud platform for delivery of SaaS applications

With the emergence of SaaS, Platform-as-a-Service (PaaS) which supports ISVs to build SaaS applications easily and rapidly is also on the rise. In this paper, we have designed and implemented a metadata-driven cloud platform for delivery of Saas applications. The platform established application layer multi-tenant virtualization approach and hierarchical data model, which can support development through standard SQL and effectively support the tenants' customization, the unified management of data, and facilitate data sharing between applications, data management rights model and transaction management, but also easy to insure the data node stretching in the cloud.