这个QOS框架是一个概念及其关系的结构化集合，用于描述QOS（服务质量） 服务），并支持对信息中与QOS相关的主题进行分区和它们之间的关系 技术（IT）用一种通用的描述方式来表达。特别是，这个QOS框架是针对它的 系统及其在提供开放式分布式处理服务中的应用。 该QOS框架旨在帮助那些设计和指定IT系统的人，以及那些定义 通信服务和协议，提供适用于网络系统、服务和资源的QOS指南 各种各样的。它描述了如何描述QOS，如何指定QOS需求，以及如何定义QOS 管理好。 该QOS框架定义了其中的QOS术语和概念。它引入了QOS特性的概念， 代表QOS的基本方面，这些方面将以各种方式进行管理；它定义了许多 QOS特性特别重要。这些定义与QOS的表示或控制方式无关 在一个真实的系统中。 该框架描述了如何表达QOS需求，并确定了许多QOS机制（例如 作为第三方协商），可作为QOS管理功能的组件，以满足 各种各样的。它还描述了各种机制组合可能适用的情况。 该QOS框架为现有或计划中的服务的扩展和增强规范提供了基础 由于本建议中定义的QOS概念的需要和应用，标准| 国际标准。本建议|国际标准的目的不是要破坏任何现有标准的稳定性 建议|国际标准；相反，本QOS框架可用于: ·定义或使用QOS机制的新的或修订的IT相关标准的开发者；和 ·IT用户表达了对QOS的需求。 此QOS框架不试图为性能目标或网络规范提供基础 公共通信网络中QOS的信令。这些通信服务的QOS方面包括: 由其他ITU-T建议解决。 本建议|国际标准旨在为两个服务提供商提供通用词汇 以及服务用户。本建议|国际标准中的任何内容都不应解释为放置要求 在服务提供商或服务用户上。希望QOS的通用方法和词汇将有所帮助 多个服务提供商向端系统提供端到端的QOS。 该QOS框架明确排除了QOS机制的详细规范。 这不是我们的目的 建议|作为实施规范的国际标准，作为评估 实现的一致性，或定义特定的服务和协议。相反，它提供了一个概念性的、可扩展的解决方案 QOS功能框架，允许独立的专家团队高效地开发 建议|国际标准。 应用于OSI时，该QOS框架与OSI基本参考模型一致，因为它描述了操作 以及OSI基本参考模型中规定的可分配给各层的机制。这与 OSI管理框架（参见ITU-T Rec.X.700 | ISO/IEC 7498-4）和系统管理概述（参见 ITU-T Rec.X.701 | ISO/IEC 10040）将职能分配给管理实体。在附件A中，本文件 框架提出了OSI的QOS模型，该模型识别了参与QOS管理的实体， 定义它们之间的QOS相关信息流，并描述如何使用这些信息。

This QOS Framework is a structured collection of concepts and their relationships which describes QOS (Quality of Service) and enables the partitioning of, and relationships between, the topics relevant to QOS in Information Technology (IT) to be expressed by a common means of description. In particular, this QOS Framework is directed at IT systems and their use in providing Open Distributed Processing services. This QOS Framework is intended to assist those designing and specifying IT systems, and those defining communications services and protocols, by providing guidance on QOS applicable to systems, services and resources of various kinds. It describes how QOS can be characterized, how QOS requirements can be specified, and how QOS can be managed. This QOS Framework defines terminology and concepts for QOS in IT. It introduces the concept of QOS characteristics, which represent the fundamental aspects of QOS that are to be managed in various ways; and it defines a number of QOS characteristics of particular importance. These definitions are independent of how QOS is represented or controlled in a real system. This Framework describes how QOS requirements can be expressed, and identifies a number of QOS mechanisms (such as three-party negotiation) that can be used as components of QOS management functions to meet QOS requirements of various kinds. It also describes the circumstances in which various combinations of mechanisms may be appropriate. This QOS Framework provides a basis for the specification of extensions and enhancements to existing or planned standards, as a result of the need for, and application of, the QOS concepts defined in this Recommendation | International Standard. It is not the intent of this Recommendation | International Standard to destabilise any existing Recommendations | International Standards; rather, it is intended that this QOS Framework may be used by: · developers of new or revised IT-related standards which define or use QOS mechanisms; and · IT users expressing requirements for QOS. This QOS Framework does not attempt to provide a basis for the specification of performance objectives or network signalling of QOS in public communications networks. The QOS aspects of these communications services are addressed by other ITU-T Recommendations. The intent of this Recommendation | International Standard is to provide a common vocabulary to both service providers and service users. Nothing in this Recommendation | International Standard should be construed as placing requirements on either service providers or service users. It is hoped that a common approach and vocabulary for QOS will assist multiple service providers to deliver end-to-end QOS to end-systems. This QOS Framework specifically excludes the detailed specification of QOS mechanisms. It is not the intent of this Recommendation | International Standard to serve as an implementation specification, to be a basis for appraising the conformance of implementations, or to define particular services and protocols. Rather, it provides a conceptual and functional framework for QOS which allows independent teams of experts to work productively on the development of Recommendations | International Standards. As applied to OSI, this QOS Framework is consistent with the OSI Basic Reference Model in that it describes operations and mechanisms which are assignable to layers as specified in the OSI Basic Reference Model. It is consistent with the OSI Management Framework (see ITU-T Rec. X.700 | ISO/IEC 7498-4) and the Systems Management Overview (see ITU-T Rec. X.701 | ISO/IEC 10040) in its assignment of functions to management entities. In Annex A, this QOS Framework presents a model of QOS for OSI which identifies the entities that participate in the management of QOS, defines the flow of QOS-related information between them and describes how this information is used.