Model Design of Multi-version Data Warehouse
Rong Bao · Jisuanji gongcheng · 2008
This paper aims at the issue on data warehouse schema evolution,proposes a model of multi-version data warehouse and gives the structure of model,definition of objects and their assignment relations. The multi-version data warehouse manages multi-dimension schema based on version control strategy that means to hold every valid state of DW using versions. Decision-maker can analyze historical facts data in a specified schema version,which is helpful for people to make decision.