ISO 13584-25:2004提供了支持描述供应商库中出现的聚合数据类型和值的通用快速资源结构。它还包含一个集成的EXPRESS信息模型，用于表示用于交换的供应商库。该集成信息模型将上述资源结构与来自ISO 13584和ISO 10303不同部分的其他EXPRESS资源结构集成到一个单一模式中。供应商库可以由零件族的定义和表示组成。它们还可以定义新的表示类别。供应商库可以仅由具有或不具有聚合数据类型的字典元素组成，或者它们也可以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 13584-25:2004的范围: 用于表示聚合数据类型的通用资源结构。聚合数据类型和值根据EXPRESS语言的聚合数据类型定义（ISO 10303-11）建模；用于表示聚合值的通用资源构造；用于表示可包含无限数量的组成部件的组装部件的通用资源构造；一种库集成信息模型，用于建模和交换供应商库，这些供应商库包含属性，这些属性的值可以是聚合结构的，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 13584-25:2004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的隐式描述；能够管理根据ISO 13584-25:2004中定义的信息模型表示的供应商库的软件系统规范。

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.