本文件规定了在整个系统生命周期内，美国国防部（DoD）和其他国防机构的项目所需执行的系统工程活动的要求，包括国防系统的规划、采办、修改和维持。它为ISO/IEC/IEEE 152881和系统各级的国防部和其他国防机构的采集环境提供了系统工程的基础。本文件提供了适用于任何国防系统的ISO/IEC/IEEE 15288生命周期过程、活动和任务的详细要求，包括协议过程、技术过程、技术管理过程和基本专业工程要求的有效集成。

This document establishes the requirements for systems engineering activities to be performed on projects of the United States (US) Department of Defense (DoD) and other defense agencies across the entire system life cycle, including the planning, acquisition, modification, and sustainment of defense systems. It provides the foundation for systems engineering within the context of ISO/IEC/IEEE 152881 and the acquisition environment of DoD and other defense agencies at all levels of system hierarchy. This document provides detailed requirements for the application of the life cycle processes, activities, and tasks of ISO/IEC/IEEE 15288 for use on any defense system and includes the effective integration of agreement processes, technical processes, technical management processes, and essential specialty engineering requirements.