Big Data is Data based on the volume and growth of the collection of content. The data content continues to grow dramatically larger than the ability of a single mind to evaluate it. It is beyond the human calculation and requires machine interface to comprehend and collect. Big Data continues to grow even as it is analyzed making it continually out of date. Big Data and Business Intelligence are very similar in goal but approach of data evaluation uses a different tactic making the two jobs unique in the IT Technology Profession.