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Characteristics and Benefits of Data Marts
by Arshad Kahn
IT Professional, Independent Consultant, and Author
March 13, 2007
 Data Warehouse Limitations and Data Mart Drivers
Data warehouses have provided many benefits that organizations have leveraged to their competitive advantage. However, they have also been characterized by some limitations, which have forced companies to seek alternative solutions for their information needs, including the following:
- Lag between need and implementation: It used to take a very long time, sometimes years, from the time a data warehouse was requested till the time it was actually rolled out to the users.
- Huge size and scope of data warehouse projects encompassing the entire organization. Such projects used to be very expensive—costing millions, They also spanned a very lengthy period and, in some cases, took years to implement.
- For enterprise implementations, which spanned disparate computer systems and numerous departments, complexity and integration proved to be overwhelming for most IT departments.
- Conflicting requirements, priorities, and the schedules of different departments and business units derailed many projects.
- Cost overruns and delays were common.
All these problems became the drivers that led to the development and widespread growth of data marts in the past few years.
Next...What Is a Data Mart?
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