Ключевые слова: assurance, background, black, blackboard, blocks, board, business, businessman, certificate, chalk, check, communication, company, concept, control, corporate, customer, design, development, digital, education, factory, guarantee, industrial, industry, inspiration, iso, machine, management, manufacturing, marketing, modern, motivation, people, person, process, product, production, productivity, quality, satisfaction, service, sign, system, technology, test, text, wood, wooden, worker,