顶层设计都以总体架构(EA)理论和方法为基础,并根据自身国情进行了进行了灵活的应用;顶层设计都与信息化建设紧密相关,目的都是为了避免重复建设,促进政府部门之间的信息共享和业务协同;同时顶层设计也需要国家立法的保障。 The top-level design is based on the theory and method of the overall architecture (EA), and has been flexibly applied according to its own national conditions; the top-level design is closely related to the construction of informatization, the purpose is to avoid duplication of construction, to promote between government departments Information sharing and business collaboration; at the same time the top-level design also needs the protection of national legislation.