信息技术 可移植的公共工具环境(PCTE) 第1部分:抽象规范

[中文适用范围]： ISO/IEC 13719 的这一部分以抽象的、独立于编程语言的术语指定了 PCTE。 它将任何一致的实现支持的接口指定为一组抽象操作规范，以及它们的参数和结果的类型。 它受到许多标准绑定的支持，即标准编程语言中的接口表示。 ISO/IEC 13719 这部分的范围仅限于单个 PCTE 安装。 它没有指定 PCTE 安装之间的通信方式，也没有指定 PCTE 安装与另一个系统之间的通信方式。 ISO/IEC 13719 的这一部分并未完全定义许多功能，但实施者有一定的自由度。 其中一些是实现限制，定义了约束（参见第 24 条）。 其他依赖于实现和实现定义的功能在本标准的适当位置指定。 PCTE 是一组设施的接口，构成构建支持系统工程项目的环境的基础。 这些设施专门设计用于为可能属于此类环境一部分的程序提供基础设施。 此类程序用作系统开发的辅助工具，通常称为工具。 ISO/IEC 13719 的这一部分还包括（在附录 B 中）PCTE 数据描述语言 (DDL) 的语言标准，适合编写 PCTE 模式定义集。 [外文原描述]： This part of ISO/IEC 13719 specifies PCTE in abstract, programming-language-independent, terms. It specifies the interface supported by any conforming implementation as a set of abstract operation specifications, together with the types of their parameters and results. It is supported by a number of standard bindings, i.e. representations of the interface in standard programming languages. The scope of this part of ISO/IEC 13719 is restricted to a single PCTE installation. It does not specify the means of communication between PCTE installations, nor between a PCTE installation and another system. A number of features are not completely defined in this part of ISO/IEC 13719, some freedom being allowed to the implementor. Some of these are implementation limits, for which constraints are defined (see clause 24). The other implementation-dependent and implementation-defined features are specified in the appropriate places in this Standard. PCTE is an interface to a set of facilities that forms the basis for constructing environments supporting systems engineering projects. These facilities are designed particularly to provide an infrastructure for programs which may be part of such environments. Such programs, which are used as aids to systems development, are often referred to as tools. This part of ISO/IEC 13719 also includes (in annex B) a language standard for the PCTE Data Description Language (DDL), suitable for writing PCTE schema definition sets.