“…The direction of Big Data (Big Data: from a few terabytes to hundreds of terabytes) began to evolve in response to the need to collect, store and analyze ever-growing arrays of user data and their goods. Big Data is reflected in the development of electronic services for tenders in the G2B, B2B sectors (Karpenko, Kovalchuk, & Shevchuk, 2016). In Ukraine, the capacity of this segment is estimated at UAH 250 bln per year.…”