Ключевые слова: accept, acceptance, agreement, application, approval, approve, assurance, assure, benefit, business, certificate, certify, check, concept, confirm, contract, control, correct, data, doc, document, education, finger, good, guarantee, hand, information, like, management, manager, online, plan, positive, quality, service, sign, signature, standard, success, system, tech, thumb, tick, time, touch, touchscreen, up, validation, warranty, yes,