| Publisher | Association for Computing Machinery | ||
|---|---|---|---|
| Format | 343.3KB PDF | Date added | 05 Nov 2005 |
| Topics | Data Acquisition - ETL, Business Intelligence - Data Warehousing | ||
| Downloads | 43 | ||
Extraction-Transformation-Loading (ETL) tools are pieces of software responsible for the extraction of data from several sources, their cleansing, customization and insertion into a data warehouse. In previous line of research, the paper has presented a conceptual and a logical model for ETL processes. This paper describes the mapping of the conceptual to the logical model. First, the paper identifies how a conceptual entity is mapped to a logical entity. Next, it determines the execution order in the logical workflow using information adapted from the conceptual model. Finally, the paper provides a methodology for the transition from the conceptual to the logical model.
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