Data integration is an essential and fundamental basis for data warehouses, business intelligence applications, master data management applications, data migration projects and scalable data service architectures. The DI software market has been estimated to have reached more than $1 billion in 2008.

So why are so many DI users unhappy, and why is the DI industry in what Gartner calls the “trough of disillusionment” that technologies fall into when they fail to meet expectations? The first generation of DI solutions were too expensive, too complex for developers to use and maintain, and didn’t facilitate a collaborative development approach. Because they typically used a vocabulary foreign to business operations, they were also too difficult for end users to understand.

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