This document discusses different options for storing extracted data from source systems, including on the source system platform, data warehouse platform, or separate staging platform. It concludes that each of these options could be viable depending on the situation.

1. When data is extracted from the source systems, it can be stored on:
the same platform as the sources systems.
the same platform as the data warehouse.
a separate platform just for data staging.
each of the above could be viable options.
a. the same platform as the sources systems.
b. the same platform as the data warehouse.
c. a separate platform just for data staging.
d. each of the above could be viable options.
Solution
When data is extracted from the source systems, it can be stored on:
d. each of the above could be viable options.