ISO/IEC/IEEE 32430:2025 软件工程-软件非功能尺寸测量

标准编号：ISO/IEC/IEEE 32430:2025

中文名称：软件工程-软件非功能尺寸测量

英文名称：Software engineering - Software non-functional size measurement

发布日期：2025-02-06

标准范围

本文档定义了一种测量软件非功能大小的方法。它补充了ISO/IEC 20926:2009，后者定义了一种测量软件功能大小的方法。本文件还描述了功能性和非功能性尺寸的互补性，以便从功能性和非功能性需求导出尺寸不会导致不同功能性和非功能性尺寸的重复。一般来说，有许多类型的非功能性需求。此外，随着技术的进步，非功能性需求及其分类也会随着时间的推移而发展。本文档不打算为给定的上下文定义NFR的类型。用户可以选择ISO 25010或任何其他标准来定义NFR。假设用户根据他们使用的定义来确定NFR的大小。本文档涵盖了非功能性需求的子集。预计，随着时间的推移，现有技术可以改进，并且本文档的潜在未来版本可以定义扩展的覆盖范围。最终目标是一个版本，与ISO/IEC 20926:2009一起，涵盖任何预期软件所需的每个方面，包括难以或不可能追溯到软件算法或数据的过程和项目指令等方面。然后，功能性和非功能性大小的组合将对应于使软件存在所需的总大小。估算实施NFR的成本、工作量和持续时间超出了本文档的范围。

This document defines a method for measuring the non-functional size of the software. It complements ISO/IEC 20926:2009, which defines a method for measuring the functional size of the software.

This document also describes the complementarity of functional and non-functional sizes, so that deriving the sizes from the functional and the non-functional requirements does not result in duplication in the distinct functional and non-functional sizes.

In general, there are many types of non-functional requirements. Moreover, non-functional requirements and their classification evolve over time as the technology advances. This document does not intend to define the type of NFR for a given context. Users can choose ISO 25010 or any other standard for the definition of NFR. It is assumed that users size the NFR based on the definitions they use.

This document covers a subset of non-functional requirements. It is expected that, with time, the state of the art can improve and that potential future versions of this document can define an extended coverage. The ultimate goal is a version that, together with ISO/IEC 20926:2009, covers every aspect that can be required of any prospective piece of software, including aspects such as process and project directives that are hard or impossible to trace to the software's algorithm or data. The combination of functional and non-functional sizes would then correspond to the total size necessary to bring the software into existence.

Estimating the cost, effort and duration of the implementation of the NFR is outside the scope of this document.

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