ISO 10303-54-2005 PDF

Full title and description

Industrial automation systems and integration — Product data representation and exchange — Part 54: Integrated generic resource: Classification and set theory. This ISO standard (ISO 10303-54:2005) defines resource-level constructs for representing classification schemes and set-theoretic concepts used in STEP-based product data models and exchanges.

Abstract

Part 54 of ISO 10303 (STEP) provides formal, machine-readable definitions (including EXPRESS schema elements) that support classification structures (taxonomies, classes and schemes) and set-theory constructs (sets, subsets, membership, unions/intersections) for product data representation and exchange. It is intended to be an integrated generic resource that application protocols and modules can reuse to represent classification and set-related semantics consistently across PLM/CAD/CAM and related systems.

General information

• Status: Published (confirmed international standard).
• Publication date: October 2005 (2005-10).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 25.040.40 (Industrial process measurement and control).
• Edition / version: Edition 1 (2005).
• Number of pages: 22 pages.

Details above are taken from the ISO bibliographic record for ISO 10303-54:2005; the publication was reviewed and confirmed in 2024 and remains current in the ISO catalogue.

Scope

ISO 10303-54:2005 defines integrated generic resource constructs to represent classification systems and set-theory operations for use in STEP-compliant product data models and exchanges. The scope covers the conceptual and schema-level representation (EXPRESS-based) needed by application protocols and modules to express classification schemes, class membership, set relationships and related semantics so that different systems can exchange and interpret classification and set information unambiguously.

Key topics and requirements

• Formal representation of classification schemes (classes, categories, taxonomies) for product data.
• Set-theory constructs: sets, subsets, membership, unions, intersections and related operations as applied to product information.
• EXPRESS schema elements and datatypes that implement the resource for reuse by application protocols and modules.
• Integration guidance so the resource can be referenced consistently across STEP APs and application modules.
• Normative definitions and rules to ensure interoperable interpretation of classification and set semantics.

Typical use and users

Users include standards implementers, PLM/CAD/CAM/engineering software vendors, system integrators and organizations exchanging product model data who need a consistent representation of classification and set relationships. Typical uses are: embedding classification scheme constructs in application protocols, mapping proprietary classification systems to STEP resources, and ensuring consistent set-based relationships in data exchange scenarios across design, manufacturing and lifecycle systems.

Related standards

ISO 10303-54 is part of the ISO 10303 (STEP) series. Closely related parts and resources include ISO 10303-1 (overview and principles), ISO 10303-11 (EXPRESS language reference), ISO 10303-21 (implementation methods: clear text encoding), ISO 10303-43 (representation structures), ISO 10303-46 (visual presentation) and several application modules and technical specifications covering classification and set-theory application modules (for example TS/parts in the 1000–1300 and 1100–1300 ranges). These related parts are commonly referenced when implementing or extending classification/set behaviour in STEP-based exchanges.

Keywords

STEP, ISO 10303, classification, taxonomy, set theory, EXPRESS schema, product data, PLM, CAD, data exchange, integrated generic resource, AP, application protocol.

FAQ

Q: What is this standard?

A: ISO 10303-54:2005 is Part 54 of the ISO 10303 (STEP) family titled "Integrated generic resource: Classification and set theory" and defines resource-level constructs for classification schemes and set-theory concepts used in product data exchange.

Q: What does it cover?

A: It covers formal, machine-readable definitions and EXPRESS schema elements for classification structures (classes, taxonomies, schemes) and set-theory constructs (sets, membership, unions/intersections) so application protocols and modules can reuse them for interoperable product data exchange.

Q: Who typically uses it?

A: Implementers of STEP/APs and application modules, PLM and CAD/CAM software vendors, system integrators and organizations exchanging product model data who require a standard way to represent classification and set relationships.

Q: Is it current or superseded?

A: ISO 10303-54:2005 was published in October 2005 (Edition 1) and, according to the ISO catalogue, was last reviewed and confirmed in 2024; it remains a current (confirmed) international standard at the time of the ISO record.

Q: Is it part of a series?

A: Yes — it is one resource part within the ISO 10303 (STEP) series. It is intended to be reused by other STEP application protocols and modules and is commonly referenced alongside parts such as ISO 10303-1, -11, -21, -43 and other related resources and application modules.

Q: What are the key keywords?

A: Keywords include: classification, taxonomy, set theory, EXPRESS schema, STEP, ISO 10303, integrated generic resource, product data, PLM, CAD/CAM.