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Designing a Data Warehouse: Supporting Customer Relationship Management by Chris Todman

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THE IDENTIFICATION OF CHANGES TO DATA

Causality

It would be very helpful if, during the analysis of the kinds of changes that can occur, it is made clear as to whether the changes are causal in nature. It would be sufficient to identify causal changes only and to assume that all unidentified changes are noncausal. This will provide assistance to the designers. Some changes, as has been previously indicated, can occur to attributes that have the property of false retrospection but that, due to the fact that they are determinants, have a “knock-on” effect on other attributes that might have the property of true retrospection. The capture of changes has to be developed into an automated process. Some mechanism is created that enables changes that ...

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