Big data is the development of the Internet to a representation or the features of the present stage, there is no need for it or its
myth
Keep awe, in contrast to the technological innovation of the large screen to cloud computing as the representative, which looks hard to collect and use data is easy to use, through innovative industries, big data will gradually create more value for human beings. [8]

Secondly, big data to cognitive system, must be comprehensive and detailed decomposition of it, starting from the three aspects:

The first level is the theory, the theory is the necessary way of cognition, is also widely recognized and spread baseline. From here the feature definition of big data industry overall understanding of big data description and qualitative; precious to in-depth analysis of data from the study on the value of big data; insight into the development trend of big data; in the long game big data privacy this special and important perspective and between data.

The second level is the technology, technology is the means to reflect the value of big data and the cornerstone of progress. Here from the cloud computing, distributed processing technology, storage technology and the development of sensing technology to illustrate the big data from the collection, processing, storage to form the whole process of results.

The third level is practice, practice is the ultimate value of big data. Here from the big data on the Internet, the government's big data, big data and personal data to describe the big four big data has shown a good picture and the blueprint for the upcoming