The document discusses the characteristics of big data, known as the "V's of big data". It begins by describing the traditional 3 V's of big data - volume, velocity and variety. It then discusses the evolution of additional V's proposed by different researchers to describe big data, culminating in a list of 14 V's. The document argues that while previous research explored these 14 V's, issues still exist in managing big data effectively. It then proposes 3 new V's to characterize big data - verbosity, voluntariness and versatility - to further the understanding of big data.