The hierarchical model,which was proposed by the sociologist Max Weber and which emphasized the supply of pub-lic service to citizens and the achievement of public policy objectives through the top -down vertical -chain executive order had been the main administrative form adopted by governments across the world.Their administrative practice proved that this tradi-tional model indeed played an active role in quite a long period of time.However,since 1980s with the rapid development of global economy,science and technology and the awakening of citizenship,the needs and problems of the society and the public are also showing characteristics of complexity,dynamics and diversity.All of the governmental departments have to change their management mode according to the ever -changing interests and demands of the public and the society.One of the obvious fea-tures is that governments are gradually changing their vertical administrative model,namely,being only responsible for their own department and continuously deepening the specialized division,into focusing on the development of coordination and cooperation between different government departments.From an international point of view,inter -departmental cooperation has become a hot issue in the management and governance of governments.And it is also the key and difficult point for them to establish and improve the related institutions and mechanisms.%伴随着全球经济的快速发展，科学技术的日新月异，公民意识的不断觉醒，社会与公众的需要和问题也日益呈现复杂性、动态性、多元性等特点，各国政府部门都不得不依据社会与公众不断发展的利益诉求和不断发展的社会环境改变管理方式，进行管理改革。其中一个比较明显的特征就是，各国政府都渐渐地将以往垂直管理、仅对本部门职责范围内事务负责并不断加深部门专业化的行政模式向更多地关注不同政府部门间的协调合作发展。从国际上看，政府跨部门合作已是各国政府管理与治理的热点问题也是各国政府建立并完善相应体制机制工作的重点和难点。[1]（P102－104）
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