工业自动化系统和集成.零件库.第25部分:逻辑源:带总值和确切含量的补充库用逻辑模型

[中文适用范围]： ISO 13584 的这一部分提供了通用 EXPRESS 资源构造，支持供应商库中出现的聚合数据类型和值的描述。 它还包含一个集成的 EXPRESS 信息模型，用于代表供应商库以进行交换。 这一集成信息模型将上述资源构造与来自 ISO 13584 和 ISO 10303 不同部分的其他 EXPRESS 资源构造集成到一个模式中。 供应商库可以由零件族的定义和表示组成。 他们还可以定义新的表示类别。 供应商库可能仅包含具有或不具有聚合数据类型的字典元素，或者它们也可能包含允许实例集的显式规范。 当与视图交换协议一起使用时，该集成信息模型还允许交换零件库中定义的零件的一个或多个表示类别。 以下内容属于 ISO 13584 本部分的范围： ——用于表示聚合数据类型的通用资源构造。 聚合数据类型和值根据 EXPRESS 语言的聚合数据类型的定义（ISO 10303-11）进行建模； ——用于表示聚合值的通用资源结构； - 用于表示可能包含无限数量的组成部件的组装零件的通用资源构造； ——图书馆集成信息模型，提供建模和交换供应商图书馆，这些图书馆包含其值可以是聚合结构的属性，并且其可能的类扩展被明确描述为实例集。 以下内容超出了 ISO 13584 本部分的范围： ——表达式和变量的表示； ——通过约束对类的允许实例集进行隐式描述； ——能够管理根据 ISO 13584 本部分定义的信息模型表示的供应商库的软件系统规范。 [外文原描述]： ISO 13584-25:2004 provides generic EXPRESS resource constructs that support the description of aggregate data types and values occurring in supplier libraries. It also contains an integrated EXPRESS information model for representing supplier libraries for the purpose of exchange. This integrated information model integrates the above resource constructs with other EXPRESS resource constructs from different parts of ISO 13584 and ISO 10303 into one single schema. Supplier libraries may consist of definitions and of representations of families of parts. They may also define new representation categories. Supplier libraries may consist only of dictionary elements with or without aggregate data types, or they may also contain explicit specifications of the sets of permitted instances. When used together with view exchange protocols, this integrated information model also permits the exchange of one or several representation categories for the parts defined in a parts library. The following are within the scope of ISO 13584-25:2004: generic resource constructs for representing aggregate data types. Aggregate data types and values are modelled according to the definition of aggregate data types of the EXPRESS language (ISO 10303-11); generic resource constructs for representing aggregate values; generic resource constructs for representing assembled parts that may contain an unlimited number of constituent components; a library integrated information model that provides for modelling and exchanging supplier libraries that contain properties whose values may be aggregate-structured, and whose possible class extensions are explicitly described as sets of instances. The following are outside the scope of this part of ISO 13584-25:2004: representation of expressions and variables; implicit description of the set of permitted instances of a class by means of constraints; specification of a software system able to manage supplier libraries represented according to the information models defined in ISO 13584-25:2004.