Big data is a new term coined for data sets that are so huge or complex that legacy/traditional data processing application software is inadequate to deal with them, Challenges include capture, storage, analysis, data curation, search, sharing, transfer, visualization, querying, updating and information privacy. The term “Big Data” often refers simply to the use of predictive analytics, user patterns, user behavior analytics, or certain other advanced data analytics methods that extract value from unstructured data, and seldom to a particular size of data set.
Big Data is widely used in the Enterprises where there is heavy scientific research is involved, business executives sales data, practitioners of medicine use it for taking the readings, advertising and governments alike regularly meet difficulties with large data-sets in areas including Internet search, finance, urban informatics, and business informatics, etc.