ITER项目作为跨国大科学工程，其多层级治理架构带来显著管理复杂性。西物院据此构建起以合同类型为划分依据的全生命周期分级管理体系，确立三大核心理念，针对三类合同设计差异化管理模式与管控要点，并形成适配的国际合作落地路径，沉淀出适配国际大科学工程的管理范式与实践经验。

As a transnational mega-science project, the ITER faces notable management complexities due to its multi level governance structure. SWIP has thus built a full-life-cycle hierarchical management system classified by contract types, established three core principles, designed differentiated management models and control points for three contract categories, formed adapted international cooperation implementation paths, and accumulated applicable management paradigms and practical experience for international mega-science projects.