Ключевые слова: assurance, assured, background, best, business, businessman, certificate, certification, certified, click, concept, control, customer, digital, excelent, excellence, excellent, guarantee, human, icon, improvement, industry, internet, man, management, people, performance, pointing, pressing, process, product, production, qualiti, quality, satisfaction, screen, service, services, sign, standard, standards, strategy, symbol, system, technology, warranty, web,