Lecture08DWH - 8-1BUSINESS DRIVEN TECHNOLOGYChapter Eight...

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Unformatted text preview: 8-1BUSINESS DRIVEN TECHNOLOGYChapter Eight: Accessing Organizational Information – Data Warehouse8-2DATA WAREHOUSE FUNDAMENTALS•In the 1990’s corporate executives realized that, in addition to being concerned with the way IT supports the day-to-day business operations, they should also become concerned with the way IT could support overall strategies and decision making•The data warehouse provided the ability to support decision making without disrupting the day-to-day operations8-3DATA WAREHOUSE FUNDAMENTALS•Data warehouse – a logical collection of information – gathered from many different operational databases – that supports business analysis activities and decision-making tasks•The primary purpose of a data warehouse is to aggregate (gather) information throughout an organization into a single repository for decision-making purposes8-4DATA WAREHOUSE FUNDAMENTALS•Extraction, transformation, and loading (ETL) – a process that extracts information from internal and external...
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Lecture08DWH - 8-1BUSINESS DRIVEN TECHNOLOGYChapter Eight...

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