Big data is a certain volume of data information, far beyond the scope of the traditional data processing tools can withstand, rarely described by statistics, generally used to handle the analysis to express. One of the characteristics of big data is that it has value, which determines its application is of practical significance.

Simply put, big data is used to make a variety of predictions, such as industry development trends, the market forecast and prediction of a company's products, agricultural production forecasts, consumer trend forecasts, stock market forecasts, Jeans analysis forecasts, etc., but also used to do economic analysis and forecasts, the basis of national policy development and adjustment, and so on.

The market has a professional to do, there are some companies can do, like BAT, these companies, there is a huge user base, and their own ability to analyze, the state has a specialized agency to be responsible for these.