Integrated generic resource: Material and other engineering properties ISO 10303-45:2008(E)
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Cover page
Table of contents
Copyright
Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and abbreviations

4 Material property definition
   4.1 Introduction
   4.2 Fundamental concepts and assumptions
   4.3 Material property definition type definitions
   4.4 Material property definition entity definitions
   4.5 Material property definition function definitions
5 Material property representation
   5.1 Introduction
   5.2 Fundamental concepts and assumptions
   5.3 Material property representation entity definitions
6 Qualified measure
   6.1 Introduction
   6.2 Fundamental concepts and assumptions
   6.3 Qualified measure type definition
   6.4 Qualified measure entity definitions

A Short names of entities
B Information object registration
C Computer interpretable listings
D EXPRESS-G diagrams
E Technical discussion
Bibliography
Index

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 archiving.

This part of ISO 10303 is a member of the integrated resource series. Major subdivisions of this part of ISO 10303 are:

Background knowledge to understand the content of these schemas is included with each schema. A review of the first edition of this part of ISO 10303 is available in [2]. A technical discussion of the possible applications of the constructs in these schemas is provided in Annex E.

Material and other engineering properties are important to many aspects of the life cycle of a product, such as:

This part of ISO 10303 is applicable to integrated generic resources, application modules and application protocols that need to describe the properties of products. The nature of these products can be solids, liquids, gases or other physical forms.

This edition incorporates modifications that are upwardly compatible with the previous edition. Modifications to EXPRESS specifications are upwardly compatible if:

The main changes in this edition of this part of ISO 10303 are to enable composition values and property values be specified by mathematical functions and for these functions to be qualified as to their precision and reliability.

This second edition of this part of ISO 10303 includes the technical modifications to ISO 10303-45:1998 listed below. These are categorised as follows: changes to the EXPRESS declarations, new EXPRESS declarations, changes to EXPRESS data types, corrections to the text.

The following EXPRESS declarations have been added:

The EXPRESS declaration of product_material_composition_relationship.constituent_amount has been changed to:

The definition of the following EXPRESS data type has been extended:

The example of material designation in Clause 3.3.3 has been moved to become EXAMPLE 1 of Clause 4.4.1.

Rules have been added to the following entities in order to constrain the meaning of some of their attributes:

The following corrections and revisions to the text have been made:

The relationships of the schemas in this part of ISO 10303 to other schemas that define the integrated resources of ISO 10303 are illustrated in Figure 1 using the EXPRESS-G notation. EXPRESS-G is defined in ISO 10303-11.

The schemas illustrated in Figure 1 are components of the integrated resources.



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