You must choose. But choose wisely…
—Grail Knight, Indiana Jones and the Last Crusade (1989)1
Introduction
In previous chapters, we have discussed not only the basics of migration/integration but also the types of documents required to develop a communication flow and strategic plan. The central theme through all this is that detail matters. And maintaining this level of detail is nowhere more critical than in the hub of your design known as the extraction, transformation, and loading (ETL) middleware. We covered the features of this component to some degree in Chapter
