ISO 10303-50-2002 PDF

Full title and description

ISO 10303-50:2002 — Industrial automation systems and integration — Product data representation and exchange — Part 50: Integrated generic resource: Mathematical constructs. This part of the STEP family defines EXPRESS schema constructs for explicitly representing mathematical structures used to describe product properties (tables, expressions, functions, spaces) in product-data exchange workflows.

Abstract

This part of ISO 10303 specifies the resource constructs for the explicit representation of mathematical structures and data related to properties of a product, including multi-dimensional tables, mathematical expressions, mathematical functions and mathematical spaces; it excludes application context, physical units and non-mathematical semantics.

General information

• Status: Published (confirmed as current by ISO review).
• Publication date: 2002-05 (May 2002).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 25.040.40 (Industrial automation systems and integration).
• Edition / version: Edition 1 (2002).
• Number of pages: 288.

Scope

Defines an integrated generic resource (IR) that provides EXPRESS-level constructs to represent mathematical entities used in product-data (STEP) exchange: multi-dimensional/regular tables and table functions, mathematical expressions and operands, mathematical functions (including composed and parameterized functions), mathematical and product-related spaces and tuples, and related matrix/array constructs. It explicitly does not define application context, unit systems or domain-specific (non-mathematical) semantics.

Key topics and requirements

• Representation of mathematical expressions and function application (operands, partial application, derivatives, integrals where modelled).
• Multi-dimensional and regularized table functions (explicit, linearized, reindexed arrays) for property data.
• Matrix and array types (triangular, symmetric, banded, sparse) and tuple/product-space constructs.
• Specialized constructs: finite functions, selector/constant constructs, composed series/parallel functions, B-spline bases and B-spline functions.
• Schema-level constructs meant for reuse by STEP application protocols and modules rather than for standalone application semantics (units and application context are handled elsewhere).

Typical use and users

Used by standards editors, implementers of STEP (ISO 10303) application protocols, CAD/CAM/CAE tool vendors, data-exchange integrators and system architects who need to encode mathematical property data (tables, functions, spaces) in neutral product-model exchanges. Typical scenarios include encoding material/property models, interpolation tables, mathematical parameterizations and function-based property representations exchanged between engineering and analysis tools.

Related standards

Part of the ISO 10303 (STEP) family; intended to be used as a reusable integrated resource by multiple STEP application protocols (APs) and modules. Related deliverables include other ISO 10303 integrated resources, application protocols (AP series such as AP203/AP214/AP242 historically), and the STEP Module and Resource Library (SMRL) that collects resource parts. Corrigenda published for this part include ISO 10303-50:2002/Cor 1:2010 and ISO 10303-50:2002/Cor 2:2014.

Keywords

STEP, ISO 10303, mathematical constructs, EXPRESS resource, table functions, multi-dimensional tables, B-spline, matrix, product data, property representation, AP, SMRL.

FAQ

Q: What is this standard?

A: ISO 10303-50:2002 is Part 50 of ISO 10303 (STEP) and defines an integrated generic resource for mathematical constructs used in product-data representation and exchange.

Q: What does it cover?

A: It covers EXPRESS-schema constructs to represent mathematical entities such as multi-dimensional tables, mathematical expressions, functions and spaces that are used to describe product properties; it does not define units or application-specific semantics.

Q: Who typically uses it?

A: Standards authors, STEP implementers, CAD/CAM/CAE vendors, data-exchange integrators and engineers who need a neutral, schema-level way to represent mathematical property data inside STEP-compliant product models.

Q: Is it current or superseded?

A: As published in May 2002 (Edition 1) the part has been subject to ISO systematic review and corrigenda; ISO's record shows the part is published and was confirmed in ISO's review cycle (the ISO catalog shows reviews and confirmation entries). Implementers should check the ISO catalog for the latest status and any new corrigenda before procurement or conformance work.

Q: Is it part of a series?

A: Yes — it is one integrated resource within the ISO 10303 (STEP) family of parts and is intended to be reused by multiple APs and modules (see SMRL and the AP/module architecture).

Q: What are the key keywords?

A: STEP, mathematical constructs, table function, multi-dimensional table, EXPRESS resource, product property, B-spline, matrix, AP, SMRL.