Abstract

This paper will review how giant companies, especially in the field of technology, utilizing the big amount of data available for managers today, to improve their product or create a new one, and how manager taking decision method has changed to relay more on the data gathered from different sources. This is also known as Fact-Based Decision Making or DDD (data-driven decision making) – no more taking decision based on guesses and gut feeling. Decision are taken based on the ordered process of real data analysis.  
This essay support that with the wider availability of knowledge, all companies should invest in Big Data as a management tool, as a finding of researches found 5-6% increase over the market prediction.