The scientific development concept usually refers to the third plenum of the Party's "people-oriented, establishing comprehensive, coordinated and sustainable development concept, to promote a comprehensive economic, social and human development", according to "urban and rural development, co-ordination regional development, economic and social development, balancing the harmonious development of man and nature, and domestic development and opening-up "requirement, advance the cause of reform and development of a methodology. First, people-centered development. Second, the overall development concept. Third, the coordination of development. Fourthly, sustainable development concept.