2, understand the required data sources but not standard, this is the "data type". A better understanding of the data, because in the Internet or the company fought for many years, for their own reasons and to know what the data needed. But also because there is no relevant data for professional personnel, for the source of the data and production data collection is not standardized, there may be errors. Therefore, these data may be distorted, using natural value is not great. In fact, this kind of data is more than the first class into decoration.
many people do not know what kind of need to collect data; some do not know through what channels to collect data; and most do not know how to analyze the data collected, and it is not clear how to use these data. So, a lot of data are just numbers, unable to transform and for the benefit of the company, became a gorgeous decoration or chicken ribs.