This column is the third and concluding portion of a three-part series on migrating from independent data marts. In parts one and two, we examined the characteristics of independent data marts, the flaws in their architecture, the reasons why they exist, approaches for migration, initial planning and how to identify a migration path. In this month's column, I will present a case study illustrating how a corporation can migrate from independent data marts to an architected data warehousing solution.
This case study illustrates the iterative approach to independent data mart migration, as most companies that have independent data marts typically have a pervasive and complex situation.
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