Term Papers on Data Warehouses from Term Papers Lab.
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"A Data Warehouse is a repository of integrated information, available for queries and analysis. Data and information are extracted from heterogeneous sources as they are generated....This makes it much easier and more efficient to run queries over data that originally came from different sources." (Data Warehousing, 205)
There are two fundamentally different types of information systems in all organizations: operational systems and informational systems.
"Operational systems" are just what their name implies; they are the systems that help us run the enterprise operation day-to-day. These are the backbone systems of any enterprise, our "order entry', "inventory", "manufacturing", "payroll" and "accounting" systems. Because of their importance to the organization, operational systems were almost always the first parts of the enterprise to be computerized. Over the years, these operational systems have been extended and rewritten, enhanced and maintained to the point that they are......
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Title: Data Warehouses
Approximate Word Count: 821
Approximate Pages: 4 (250 words per double-spaced page)
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