本标准描述了管理和执行软件维护活动的迭代过程。本标准的使用不受软件产品的大小、复杂性、关键性或应用的限制。本标准使用过程模型来讨论和描述软件维护的各个方面。建立的标准既适用于开发中的软件维护规划，也适用于现有软件产品的软件维护活动的规划和执行。理想情况下，维护计划应该在软件开发计划期间开始。本国际标准提供了一个框架，在此框架内，可以执行、评估通用和特定的软件维护计划，并根据给定软件产品的维护范围和规模进行定制。 本国际标准提供了框架、精确术语和过程，以允许在软件维护中一致地应用技术（工具、技术和方法）。本国际标准提供了软件维护的要求和指南。维护过程及其活动的基础符合ISO/IEC/IEEE 12207:2017《系统和软件工程——软件生命周期过程》。本标准定义了软件维护的活动和任务，并提供了维护计划要求。它不涉及软件的操作以及通常由软件操作人员执行的操作功能，例如备份、恢复或系统管理。

This standard describes an iterative process for managing and executing software maintenance activities. Use of this standard is not restricted by size, complexity, criticality, or application of the software product. This standard uses a process model to discuss and depict aspects of software maintenance. The criteria established apply to both the planning of maintenance for software while under development, as well as the planning and execution of software maintenance activities for existing software products. Ideally, maintenance planning should begin during planning for software development. This International Standard provides the framework within which generic and specific software maintenance plans may be executed, evaluated, and tailored to the maintenance scope and magnitude of given software products. This International Standard provides the framework, precise terminology, and processes to allow the consistent application of technology (tools, techniques, and methods) to software maintenance. This International Standard provides requirements and guidance for the maintenance of software. The basis for the Maintenance Process and its activities is consistent with ISO/IEC/IEEE 12207:2017, Systems and software engineering -- Software life cycle processes. This standard defines the activities and tasks of software maintenance, and provides maintenance planning requirements. It does not address the operation of software and the operational functions, e.g., backup, recovery, or system administration, which are normally performed by those who operate the software.