I see the frame mentioned in the design phase (2.4), but I wonder where the frame is in the production phase. In the traditional sample survey methodology, the frame is the sampling frame. In a mixed and multi mode environment the frame is the backbone of the data warehouse, defining the statistical units and their relations. My feeling is that it is a separate service (although the frame process has many steps in common with statistics production (e.g. 5.1 to 5.5).