本标准的目的是提供一套完整的基本过程，以帮助开发人员设计或重新设计系统。本标准的使用旨在帮助开发人员:建立和发展一套完整且一致的需求，以实现可行且经济高效的系统解决方案的交付；在成本、进度和风险约束范围内满足要求；提供一个系统或系统的任何部分，在构成该系统的产品的整个生命周期内满足利益相关者的要求；提供保险箱和/或费用- 系统的有效处置或退役。

The purpose of this Standard is to provide an integrated set of fundamental processes to aid a developer in the engineering or re-engineering of a system.Use of this Standard is intended to help developers:establish and evolve a complete and consistent set of requirements that will enable delivery of feasible and cost-effective system solutions;satisfy requirements within cost, schedule, and risk constraints;provide a system, or any portion of a system, that satisfies stakeholders over the life of the products that make up the system;provide for the safe and/or cost-effective disposal or retirement of a system.