Data Marts is a subset of Data Warehouse.
| Sr. | Independent Data Marts | Dependent Data Marts |
| 1 | Independent Data Marts are Data Marts which access data directly from operation system. | Dependent Data Marts are Data Marts which access data from the data warehouse. |
| 2 | Independent Data marts structure is complex for ‘n’ number. | Dependent Data Marts structure is simple. |
| 3 | Independent Data Marts follows Top-Down approach. | Dependent Data Marts follows Bottom-Up approach. |
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