系统和软件工程.系统和软件质量要求和评估（SQuaRE）:云服务.第1部分:质量模型

[中文适用范围]： 本文件定义了云服务的质量模型。云服务质量模型由九个特性组成（其中一些特性进一步细分为子特性），为指定、测量和评估云服务提供了统一的术语，以便相关方（云计算客户 (CSC)、云计算提供者 (CSP) 和云计算合作伙伴 (CSN))能够达成共同理解。由于本文件中的质量模型是对现有 ISO/IEC 2501n 定义的质量模型的扩展，因此可以根据评估目的与其他产品质量模型、IT 服务质量模型、数据质量和“就绪使用”的质量模型一起使用。由于存在多个云计算类别，本文件专注于软件即服务 (SaaS) 的质量模型。未来文件旨在解决平台即服务 (PaaS) 和基础设施即服务 (IaaS)。 [外文原描述]： This document defines the quality model of cloud services. The quality model of cloud services is composed of nine characteristics (some of which are further subdivided into subcharacteristics), which provide consistent terminology for specifying, measuring and evaluating cloud services so that the stakeholders, cloud service customer (CSC), cloud service provider (CSP) and cloud service partner (CSN) have a common understanding. Since the quality model in this document is the extension to the existing quality models defined in ISO/IEC 2501n, it can be used with the product quality model, IT service quality model, data quality model, and quality-in-use model according to evaluation purposes. As there are several cloud service categories, this document focuses on the quality model of SaaS (Software as a Service). NOTE Future documents are intended to address PaaS (Platform as a Service) and IaaS (Infrastructure as a Service).