用例方法论 第2部分：用例、参与者列表和需求列表的模板定义

[中文适用范围]： 本部分 IEC 62559“用例方法论”定义了用例模板、执行者列表和需求列表的结构，以及它们之间的相互关系。在本文中，定义了用于各种目的的用例描述标准化模板，例如在标准组织中进行标准开发或在开发项目中进行系统开发。本文件是为在各种领域和系统中的一般应用而开发的。能源系统/智能电网在本文中被用作示例，因为它是该用例模板的最早应用领域之一，但该通用模板也可应用于能源系统以外的其他应用领域（例如智能家居或电动汽车）。用例的动机、背景信息、处理用例的建议以及在标准化中和与中央用例库关系中的描述过程在 IEC 62559-1 中进行了描述。 [外文原描述]： IEC 62559-2:2015 defines the structure of a use case template, template lists for actors and requirements, as well as their relation to each other. In this document, a standardized template for the description of use cases is defined for various purposes like the use in standardization organizations for standards development or within development projects for system development. This document was developed for general application in various domains and systems. The energy system/smart grid is used as example in this document as it was one of the first usage areas for this use case template, but this general template can be applied in other usage areas different from energy systems as well (e.g. smart home or electro-mobility). The motivation, background information on use cases, recommendations for the handling of use cases and the processes for the description of use cases inside standardization and in relation to a central use case repository is described in IEC 62559-1. This first edition cancels and replaces IEC PAS 62559:2008 which had been published together with EPRI. Main content of the former PAS will be transferred to the new IEC 62559-4.