Q: Why can't we have data marts which have the same structure but at different locations? For example, consider a telecom provider which operated from multiple countries. Can't we build three data marts with same structure in the three countries? What will these data marts be called?

For a geographically dispersed BI capability, it is normal to have data marts located in different countries rather than pay for high-speed lines from those countries to the headquarters. It certainly helps to have the same structures for dimensions and facts in all locations. However, there is more to it and then merely having the same structures.

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