Chapter 4 DISPARATE DATA VARIABILITY
All aspects of a disparate data resource are highly variable.
The naming, definition, structure, integrity, and documentation of disparate data are highly variable. The result of high variability in disparate data is a poor understanding about how well the data actually represent the business. That poor understanding increases the uncertainty about how the organization operates in the business world.
Thoroughly understanding disparate data is a primary objective of data resource integration. That thorough understanding begins with an understanding of the different types of variability that may be encountered in a disparate data resource. When the types of variability can be readily recognized, the stage ...