Ключевые слова: abstract, account, activity, affair, banking, business, cash, cellphone, charged, checkout, commerce, commercial, communications, concept, consumerism, contactless, cyberspace, digital, easy, exchange, financial, future, mobile, mobility, money, pass, pay, paying, payment, phone, selling, shop, smart, smartphone, store, supermarket, system, technology, terminal, trading, transaction, transfer, transmit, wallet, wave, web, wireless,