What is Big Data analytics? Why is it big? These were my questions when coming across the term Big Data for the first time. Luckily for both of us, it’s a pretty simple answer. Big Data analytics tools are exactly what they sound like — they help users collect and analyze large and varied data sets to explore patterns and draw insights. This data can be anything from customer preferences to market trends, and is used to help business owners make more informed, data-driven decisions.