Research And Design Of Distributed Data Warehouse, Data Scheduling Mechanism

As the base of Business Analysis ,Data Support System, Data mining, the construction of data warehouse will be more and more regarded by people. The quality of data warehouse effect the result of Business Analysis, Data Support System, Data mining directly. In order to support different level, different business of Business Analysis, the construction of data warehouse turned centralize data warehouse to distribute data warehouse. Now ,there are many problems in the process of the construction of distribute data warehouse, such as mapping scheduling scheme , data transform , maintenance of coherence , the data redundancy,model design and so on . how to resolve these problems is the emphasis of design and implement of the distribute data warehouse.The distribute data warehouse scheduling scheme include two parts, one is the whole data warehouse scheduling scheme and the other is the part data warehouse scheduling scheme And every parts contains three processes, such as data collection ETL and data presentation. There are many complicated relations among these parts, these processes and inside them. How to design a better scheduling scheme which not only ensures data correctness but also boosts up the efficiency of system and can benefit from the distribute system is the question by data warehouse...