), Proceedings of SAC??™04, Nicosia, Cyprus (pp. 1359-1365).
ACM Press.
Zmud, R. (1978). Concepts, theories and techniques: An empirical investigation
of the dimensionality of the concept of information. Decision Sciences, 9(2),
187-195.
Data Quality-Based Requirements Elicitation for Decision Support Systems 8
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of Idea Group Inc. is prohibited.
Section II
Loading and Refreshing
88 Adzic, Fiore, & Sisto
Copyright ?© 2007, Idea Group Inc. Copying or distributing in print or electronic forms without written permission of
Idea Group Inc. is prohibited.
Chapter.IV
Extraction,.
Transformation,.
and.Loading.Processes
Jovanka Adzic
Telecom Italia, Italy
Valter Fiore
Telecom Italia, Italy
Luisella Sisto
Telecom Italia, Italy
Abstract
ETL stands for extraction, transformation, and loading, in other words, for the data
warehouse (DW) backstage. The main focus of our exposition here is the practical
application of the ETL process in real world cases with extra problems and strong
requirements, particularly performance issues related to population of large data
warehouses. In a context of ETL/DW with strong requirements, we can individuate
the most common constraints and criticalities that one can meet in developing
an ETL system.
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