本标准适用于安全关键软件的开发、采购、维护和退役计划；例如，软件产品的故障可能导致生命损失、严重伤害或广泛的负面社会影响。本标准要求在系统安全计划的背景下编制计划。本标准的范围仅包括软件的安全方面。本标准不包含分布式系统或并行处理器中使用的软件所需的特殊规定。

This standard applies to the Plan used for the development, procurement, maintenance, and retirement of safety-critical software; for example, software products whose failure could cause loss of life, serious harm, or have widespread negative social impact. This standard requires that the Plan be prepared within the context of the system safety program. The scope of this standard includes only the safety aspects of the software. This standard does not contain special provisions required for software used in distributed systems or in parallel processors.