“You don’t make a great museum by putting all the art in the world into a single room. That’s a warehouse,” explained Jason Fried and David Heinemeier Hansson in their bestselling book Rework. “What makes a museum great is the stuff that’s not on the walls. Someone says no. A curator is involved, making conscious decisions about what should stay and what should go. There’s an editing process. There’s a lot more stuff off the walls than on the walls. The best is a sub-sub-subset of all the possibilities.”
One of the many things that differentiate master data management (MDM) from a data warehouse is MDM has less stuff on its walls, so to speak. MDM provides a single view of master data entities by creating golden copies that are a sub-sub-subset of all the possible representations of those entities from all across the organization. Many, if not all, of which are stored in the data warehouse.
Fried and Hansson discussed the need for curators to decide what is included in a museum. MDM needs curators as well. MDM’s curators decide what is included in the Master Data Museum, which is where your organization will display its master-data-pieces — the best master data representations — of your products, locations, assets, and parties (e.g., customers, supplier, employees).