The ______________ serves as a sort of interface or middleman between the operational and information access layers and the data warehouse itself. This layer spans the various databases contained within the DW and facilitates common access by the DW users.
A) data access layer
B) application messaging layer
C) information access layer
D) none of the above

Question

Quizplus · Accepted Answer

The data access layer serves as the interface or middleman between the operational and information access layers and the data warehouse, facilitating common access by DW users.

The ______________ Serves as a Sort of Interface or Middleman