本文档从项目、模板和计划方面描述了用例项目的最佳实践，目的是提高不同用例项目之间内容的一致性，并实现项目之间的知识共享。一个长期目标是促进支持用例收集和维护的工具之间的互操作性。本文档面向用例项目的开发人员，包括在标准化的背景下。该文件可用于补充现有的方法标准，如IEC 62559。

This document describes best practices for use case projects in terms of projects, templates and plans, with the objective to improve the consistency of content across different use case projects and enable sharing of knowledge between projects. A long-term goal is to foster interoperability between tools supporting the collection and maintenance of use cases. This document is intended for developers of use case projects, including in the context of standardization. The document can be used to complement existing methodology standards such as IEC 62559.