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Article: Data warehousing is the sum of its marts. (data marts and data warehouses) (includes related articles on products for building data marts and Capital One's data warehouse) (Technology Information)
- Article from:
- Software Magazine
- Article date:
- January 1, 1997
- Author:
CopyrightCOPYRIGHT 1997 Wiesner Publications, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Not long ago, data marts were viewed as limited alternatives to fully populated enterprise data warehouses. Today, in the wake of a legion of failed or abandoned warehouse projects that took too long and cost too much, data marts have surged in popularity. Frequently, they serve as more manageable, cost-effective stepping-stones to the data warehouse.
A data mart is best defined as a subject-specific data warehouse. "Warehousing is a spectrum from large and complex to small and simple," says George Zagelow, IBM's project manager for data warehousing solutions. "A data warehouse has more users, more subjects, and offers a chance for users to cross subject-area lines." ...