Transcript Data Warehouses

Data Warehouses
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Data warehouses, which contain both
current and historical data, can provide
additional support for strategic decision
making.
Whereas transaction-processing
databases are designed to minimize
redundancy, data warehouses purposely
build in redundancies in order to
maximize query efficiency.
©2003 Prentice Hall Business Publishing,
Accounting Information Systems, 9/e, Romney/Steinbart
15-1
Data Warehouses
The process of accessing data
contained in the data warehouse and
using it for strategic decision making
is referred to as Business Intelligence.
 The two main techniques of business
intelligence are:
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Online Analytical Processing (OLAP)
 Data mining
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©2003 Prentice Hall Business Publishing,
Accounting Information Systems, 9/e, Romney/Steinbart
15-2