Data mart or data warehouse?
If you start a project from the outset with either of the following premises, you already have two strikes against you:
✓ “We’re building a real data warehouse, not a puny little data mart.” ✓ “We’re building a data mart, not a data warehouse.”
By labeling your project as one or the other of these terms, you already have some preconceived notions about the work you’ll do, before you even begin to dig into the business problem. Until you understand the following three issues, you have no foundation on which to classify your impending project as either a data mart or a data warehouse:
✓ The volumes and characteristics of data you need
✓ The business problems you’re trying to solve and the questions you’re
trying to answer
✓ The business value you expect to gain when your system is success- fully built
Data mart or data warehouse?If you start a project from the outset with either of the following premises, you already have two strikes against you:✓ “We’re building a real data warehouse, not a puny little data mart.” ✓ “We’re building a data mart, not a data warehouse.”By labeling your project as one or the other of these terms, you already have some preconceived notions about the work you’ll do, before you even begin to dig into the business problem. Until you understand the following three issues, you have no foundation on which to classify your impending project as either a data mart or a data warehouse:✓ The volumes and characteristics of data you need✓ The business problems you’re trying to solve and the questions you’retrying to answer✓ The business value you expect to gain when your system is success- fully built
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