ISO/IEC 14752:2000 信息技术 开放分布式处理 计算,交互作用的协议支撑.

标准编号：ISO/IEC 14752:2000

中文名称：信息技术 开放分布式处理 计算,交互作用的协议支撑.

英文名称：Information technology — Open Distributed Processing — Protocol support for computational interactions

发布日期：2000-04

标准范围

本建议|国际标准基于在开放分布式处理参考模型（ITU-T Rec.X.902 | ISO/IEC 10746-2和ITU-T Rec.X.903）|ISO/IEC 10746-3）。本建议|国际标准定义了计算对象之间如何在一个系统的计算规范与一个工程规范中对这些交互的协议支持有关那个系统。特别是:?定义通用互通框架（GIF）；?在GIF中，定义了一组设施，每个设施包括一组功能相关的服务原语，如下所示:基本工程对象和渠道对象相互作用的抽象定义；?定义GIF服务原语的参数；?通过状态表定义服务原语的允许序列；?在附件中指定GIF服务原语及其参数与消息和特定协议的字段。如本建议|国际标准中所述，GIF定义了协议支持的实用子集ITU-T Rec.X.903 | ISO/IEC 10746-3中定义的可能计算交互。它也受到了法律的限制协议支持功能和支持的透明胶片。此处指定的GIF定义:?支持计算操作，但不支持流；?支持分层使用存根、绑定器和协议对象，以便在互通时进行任何交互支持协议对象的参考点支持其中一个对象或基本协议的联络工程对象，任何支持这些联络的交互都是通过该交互引用传递的指向和?从一方的角度来看，在一个相互作用的参考点上的相互作用；拦截器不是明确考虑；注1？在未来的修订中，GIF可以扩展，以支持流和流。现在规范仅限于技术稳定的区域。GIF至少支持以下几种形式:?准入透明度；和?位置透明度。此处指定的GIF还支持有限的迁移透明度。其他透明胶片则不然本规范对此进行了说明。注2？在未来的修正案中，GIF可以扩展，以支持额外的透明度。GIF没有明确建模服务质量要求。当前文本中未包含GIF安全相关问题的应用，有待进一步研究。本建议|国际标准附录中规定的特定协议的映射集不适用详尽的GIF可以映射到其他协议。注3？特别是，映射到DCOM协议系列将成为附加附件的候选。

This Recommendation | International Standard is based on the framework of abstractions and concepts developed in theReference Model for Open Distributed Processing (ITU-T Rec. X.902 | ISO/IEC 10746-2 and ITU-T Rec. X.903 |ISO/IEC 10746-3).This Recommendation | International Standard defines how interactions between computational objects in acomputational specification of a system relate to protocol support for those interactions in an engineering specification ofthat system. In particular it:?defines a General Interworking Framework (GIF);?within the GIF, defines a set of facilities each comprising a set of functionally-related service primitives asabstract definitions of the interactions of basic engineering objects and channel objects;?defines the parameters of the service primitives of the GIF;?defines the permitted sequence of the service primitives by means of state tables;?specifies, in annexes, the mapping of the GIF service primitives and their parameters to the messages andfields of particular protocols.As specified in this Recommendation | International Standard, the GIF defines protocol support for a pragmatic subset ofthe possible computational interactions defined in ITU-T Rec. X.903 | ISO/IEC 10746-3. It is also restricted in thefeatures of the protocol support and the supported transparencies.The GIF, as specified here, defines:?support for computational operations, but not for streams;?support using stub, binder and protocol objects hierarchically, such that any interaction at the interworkingreference point of the supporting protocol object supports liaisons of one of those objects or of the basicengineering object, and any interaction to support those liaisons is passed via that interworking referencepoint; and?interactions at a single interworking reference point, from the perspective of one side; interceptors are notexplicitly considered;NOTE 1?It is intended that the GIF could be extended, in a future amendment, to support streams and flows. The presentspecification is restricted to areas that are technically stable.The GIF supports at least some forms of:?access transparency; and?location transparency.The GIF as specified here also supports a limited equivalent of relocation transparency. Other transparencies are notaddressed in this present specification.NOTE 2?It is intended that the GIF could be extended, in future amendments, to support additional transparencies.The GIF does not explicitly model Quality of Service requirements.The application of security-related issues to the GIF are not included in the current text and are for further study.The set of mappings to particular protocols specified in annexes to this Recommendation | International Standard is notexhaustive. The GIF could be mapped to other protocols.NOTE 3?In particular, a mapping to the DCOM protocol family would be a candidate for an additional annex.

标准预览图