本文件定义了与保证相关的术语，并建立了一套有组织的概念和关系，以形成保证用户社区之间共享理解的基础。它向ISO/IEC/IEEE 15026其他部分的用户提供信息，包括多个部分的组合使用。ISO/IEC/IEEE 15026（所有部分）引入的基本概念是保证案例中的索赔声明，以及通过论证和证据支持这些索赔。 这些索赔是在系统或软件产品的生命周期过程中对系统和软件的属性进行保证的情况下提出的。ISO/IEC/IEEE 15026（所有部分）未涵盖持续运行和管理服务的保证。存在ISO/IEC/IEEE 15026（所有部分）的各种潜在用户，包括保证案例的开发人员和维护人员，以及希望开发、维护、评估或获取具有特定属性要求的系统的人员，以便更确定这些属性及其要求。 ISO/IEC/IEEE 15026（所有部分）使用与ISO/IEC/IEEE 12207和ISO/IEC/IEEE 15288一致的概念和术语，并且通常与ISO/IEC 25000系列一致，但ISO/IEC/IEEE 15026（所有部分）的潜在用户需要理解与他们可能习惯的概念和术语的差异。本文件试图澄清这些差异。本文件的主要目的是通过提供有关保证、保证案例和完整性水平的上下文、概念和解释，帮助ISO/IEC/IEEE 15026其他部分的用户。 虽然对保证实践至关重要，但不包括有关如何准确测量、演示或分析特定属性的详细信息。这些是更专业标准的主题，参考了其中的一些标准，并将其包含在参考书目中。

This document defines assurance-related terms and establishes an organized set of concepts and relationships to form a basis for shared understanding across user communities for assurance. It provides information to users of the other parts of ISO/IEC/IEEE 15026 including the combined use of multiple parts. The essential concept introduced by ISO/IEC/IEEE 15026 (all parts) is the statement of claims in an assurance case and the support of those claims through argumentation and evidence. These claims are in the context of assurance for properties of systems and software within life cycle processes for the system or software product. Assurance for a service being operated and managed on an ongoing basis is not covered in ISO/IEC/IEEE 15026 (all parts). A variety of potential users of ISO/IEC/IEEE 15026 (all parts) exists including developers and maintainers of assurance cases and those who wish to develop, sustain, evaluate or acquire a system that possesses requirements for specific properties in such a way as to be more certain of those properties and their requirements. ISO/IEC/IEEE 15026 (all parts) uses concepts and terms consistent with ISO/IEC/IEEE 12207 and ISO/IEC/IEEE 15288 and generally consistent with the ISO/IEC 25000 series, but the potential users of ISO/IEC/IEEE 15026 (all parts) need to understand the differences from concepts and terms to which they may be accustomed. This document attempts to clarify these differences. The primary purpose of this document is to aid users of the other parts of ISO/IEC/IEEE 15026 by providing context, concepts and explanations for assurance, assurance cases and integrity levels. While essential to assurance practice, details regarding exactly how to measure, demonstrate or analyse particular properties are not covered. These are the subjects of more specialized standards of which a number are referenced and included in the Bibliography.