July 2010
Intermediate to advanced
400 pages
9h 37m
English
book
DW 2.0: The Architecture for the Next Generation of Data Warehousing
by W.H. Inmon, Derek Strauss, Genia Neushloss
Content preview from DW 2.0: The Architecture for the Next Generation of Data Warehousing
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Chapter 16 Migration
The DW 2.0 environment is a large complex environment. It requires many resources over a long period of time to build the DW 2.0 environment. Figure 16.1 indicates that the DW 2.0 environment is more like a city than a house.
HOUSES AND CITIES
A house is built over a relatively short amount of time. There is a finite starting point and a finite ending point in the building of a house. A house reaches a single point of usefulness—at one point it is not useful and at another point it is useful.
A city has a very different path of construction. A city is built over a very long period of time. A city is useful as soon as the first building is constructed. The city may or may not be planned. And, cities take on their own character. ...
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