DW Quality Assurance and Quality Control DW Quality Assurance and Quality Control thomca01 (MIS) (OP) 4 Mar 00 17:17 What written process do one use for Quality Assurance in a Data Warehousing Environment. Do you have an example. What would one use for Quality Control of a Data Warehouse. Love to get your ideas. RE: DW Quality Assurance and Quality Control Truth (Programmer) 2 Jun 00 06:47 Informix has via the aquisition of Ardent got a Data Quality assesment tool aimed specificaly for use when building and maintaining a data warehouse.Loads of customers including the nasdaq.