Introduction

ISO 10303 is an International Standard for the computer-interpretable representation of product information and for the exchange of product data. The objective is to provide a neutral mechanism capable of describing products throughout their life cycle. This mechanism is suitable not only for neutral file exchange, but also as a basis for implementing and sharing product databases, and as a basis for retention and archiving.

This part of ISO 10303 specifies an application module for the representation of information required to support declaration of interface features and components in an assembly design. This information is related to components that are considered to be internal to an assembly design by a design organization and is not related in this part of ISO 10303 to the interface control definition or usage view of that design. The inclusion of domain specific model for interface component provides the ability to perform design rule checks on the implemented connectivity of the assembly.

EXAMPLE 1   A socket may be used internally in a computer to allow processor upgrades without replacing the motherboard, but with a requirement for temporary partial disassembly of the computer. In this case the socket would be considered to be an interface component from the viewpoint of the computer assembler.

EXAMPLE 2   An ethernet socket provided on the motherboard that allows an end user to connect the assembled computer to an ethernet cable would not be modeled as an interface component since the ethernet cable is not internal to the assembled computer.

NOTE    The classification of a part occurrence as an interface component depends on the design application and intent. The same product may be represented as an interface component in one design if its features are not accessible externally to the system and can be represented as a connector in another design where the external features are available.

Clause 1 defines the scope of the application module and summarizes the functionality and data covered. Clause 3 lists the words defined in this part of ISO 10303 and gives pointers to words defined elsewhere. The information requirements of the application are specified in Clause 4 using terminology appropriate to the application. A graphical representation of the information requirements, referred to as the application reference model, is given in Annex C. Resource constructs are interpreted to meet the information requirements. This interpretation produces the module interpreted model (MIM). This interpretation, given in 5.1, shows the correspondence between the information requirements and the MIM. The short listing of the MIM specifies the interface to the resources and is given in 5.2. A graphical representation of the short listing of the MIM is given in Annex D.

In ISO 10303, the same English language words can be used to refer to an object in the real world or concept, and as the name of an EXPRESS data type that represents this object or concept.

The following typographical convention is used to distinguish between these. If a word or phrase occurs in the same typeface as narrative text, the referent is the object or concept. If the word or phrase occurs in a bold typeface or as a hyperlink, the referent is the EXPRESS data type.

The name of an EXPRESS data type can be used to refer to the data type itself, or to an instance of the data type. The distinction between these uses is normally clear from the context. If there is a likelihood of ambiguity, either the phrase "entity data type" or "instance(s) of" is included in the text.

Double quotation marks " " denote quoted text. Single quotation marks ' ' denote particular text string values.

© ISO 2018 — All rights reserved