Data valuation is becoming more and more important as it is concerned as a new-coming productive element.Data should be classified as four levels according to the Materiality principle,which are negative data asset,data resource without scarcity,data asset,and data capital.On the basic of the classification above,the detailed need,the exact meanings,and the suitable methods of data valuation are possible to be clarified.
NETL
NSTL
万方数据
