The customer's former data architecture includes a main data warehouse, two data marketplaces (one 2800-data warehousing MDB_SR marketplace, one 6650 data marketplace for specific monitoring), and three monitoring application databases (TD, SqlServer and Mysql). There are multiple documents implementation in the whole submission process, affecting submission timeliness. Meanwhile, the overall operation and maintenance burden is heavy and the expansion cost of TD in the later period is beyond budget. So the customer wants to replace these with more cost-effective DWS products, and solve the problems of poor timeliness and slow batch processing.