Reengineering: Refers to fundamental rethinking and thorough reform of work processes in order to improve the major operating benchmarks of modern enterprises such as cost, quality, service, speed, and redesign of the company's management and operation methods. Which of the following are reengineering projects? ['With the continuous improvement of living standards, customers have higher requirements for corporate products and services.', 'More and more multinational corporations are going beyond national borders to launch various forms of competition in an integrated global market.', 'An enterprise merges and adjusts several current business operations. It proposes multiple process improvement programs, which require an evaluation from costs, benefits, technical conditions, and risk levels to give employees the power to participate in decision-making.', 'The market demand is changing day by day. The unit of the product life cycle has changed from "year" to "month". Technological progress has made the production and service systems of enterprises change frequently.']