本文档提供了表示ISO/IEC/IEEE 12207-1:2017中的软件生命周期过程与之前版本ISO/IEC/IEEE 12207:2008中的过程之间对应关系的映射。 这些关系通过映射表来展示，映射表显示了活动和任务以及过程结果之间的关系。 此映射帮助2008版用户过渡到2017版。 本文件为采用基于ISO/IEC/IEEE 12207前一版的过程的用户提供了应用和持续执行其生命周期过程（包括软件特定过程、活动和任务）的基本原理和机会。此外，本文件为此类用户提供了映射，有助于识别ISO/IEC/IEEE 12207中软件系统的相应和兼容过程结果、活动和任务- 1:2017. 本文件中ISO/IEC/IEEE 12207-1:2017和2008之间的映射可作为持续实施、改进和扩展当前过程资产的基础，包括基于ISO/IEC/IEEE 12207:2008的软件特定过程资产，以有效实施新版ISO/IEC/IEEE 12207-1:2017。这些过程活动和任务可以迭代应用。

This document provides the mapping expressing corresponding relations between software life cycle processes in ISO/IEC/IEEE 12207-1:2017 and the processes in the previous edition ISO/IEC/IEEE 12207:2008. These relations are demonstrated by means of mapping tables that show relationships between activities and tasks, and process outcomes. This mapping assists users of the 2008 edition to transition to using the 2017 edition. This document provides users who employ processes based on the previous edition of ISO/IEC/IEEE 12207 a rationale and opportunity to apply and perform continuously their life cycle processes including software specific processes, activities and tasks. Also, this document provides to such users the mapping which helps to identify corresponding and compatible process outcomes, activities and tasks of processes for software systems in the ISO/IEC/IEEE 12207-1:2017. The mapping between ISO/IEC/IEEE 12207-1:2017 and 2008 in this document can be used as a basis to continuously conduct, improve and extend current process assets including software specific process assets based on ISO/IEC/IEEE 12207:2008 for effective implementation of the new edition of ISO/IEC/IEEE 12207-1:2017. These process activities and tasks can be applied iteratively.