前言:信息技术部门的标准制定与国际标准制定相协调。通过CSA信息技术技术委员会（TCIT），加拿大人担任加拿大标准委员会（SCC）ISO/IEC信息技术联合技术委员会（ISO/IEC JTC1）的SCC镜像委员会（SMC），该委员会是加拿大的ISO成员机构，也是IEC加拿大国家委员会的发起人。此外，作为国际电信联盟（ITU）的成员，加拿大还参加了国际电报和电话咨询委员会（ITU-T）。本标准已由技术委员会正式批准，无需修改，并根据加拿大标准委员会对加拿大国家标准的要求制定。 CSA集团已将其作为加拿大国家标准发布。范围:本标准规定了美国国防部（DoD）和其他国防机构项目在整个系统生命周期内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。本标准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。

Preface:Standards development within the Information Technology sector is harmonized with international standards development. Through the CSA Technical Committee on Information Technology (TCIT), Canadians serve as the SCC Mirror Committee (SMC) on ISO/IEC Joint Technical Committee 1 on Information Technology (ISO/IEC JTC1) for the Standards Council of Canada (SCC), the ISO member body for Canada and sponsor of the Canadian National Committee of the IEC. Also, as a member of the International Telecommunication Union (ITU), Canada participates in the International Telegraph and Telephone Consultative Committee (ITU-T).This Standard has been formally approved, without modification, by the Technical Committee and has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group.Scope:This standard 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 standard 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.