Big Data is defined as datasets that are too large and complex for businesses’ existing systems to handle using their traditional capabilities to capture, store, manage and analyze these data sets.
The four V’s—volume, velocity, veracity and variety—are often used to represent the defining features of Big Data.
Volume refers to the massive amount of data involved.
Velocity refers to the fact that the data comes in at quick speeds or in real time, such as streaming videos and news feeds.
Variety refers to unstructured and unprocessed data, such as comments in social media, emails, global positioning system (G P S) measurements, etc.
Veracity refers to the quality of the data including extent of cleanliness (without errors or data integrity issues), reliability and representationally faithful.