CHAPTER11A Sample Data Warehouse Data Model
Each enterprise has its own unique requirements regarding the types of information that are valuable for decision support. In general, though, the decision support environment provides information to illustrate trends, depict performance, and provide key business indicators in order to make informed strategic decisions.
There are a variety of decision support questions that many different departments across an enterprise may need to have answered, such as the following:
- How did sales representatives perform over different periods of time?
- What products are most popular to whom and when?
- What types of customers are buying what types of products?
- How much are the various internal organizations spending on what products?
- What were the variances between the amounts budgeted and the amounts spent?
- What positions are being filled by people with what types of backgrounds?
- What is the average pay for people within different age brackets or Equal Employment Opportunity Commission (EEOC) categories?
This chapter provides a sample data warehouse data model that answers these types of questions. The model was developed using the logical data models from Chapters 2 through 9 as a basis, then utilizing the principles outlined in Chapter 10 to perform the appropriate transformations. The model in this chapter will serve as the source for the data in the departmental models in Chapters 12, 13, and 14.
This data warehouse data model serves as the enterprise-wide ...