ePLM Interoperability ASD Strategic Standardization Group

The objective of the “CAD 3D Mechanical interoperability” working group is to ensure the coordination and the consistency of all standardisation activities related to “CAD 3D Mechanical” interoperability, including Product Manufacturing Information (PMI).

This working group is part of the ASD SSG “PLM interoperability” domain.

The recommendations of the working group cover product information interoperability for the full life cycle of the mechanical part development, from specifications to maintenance and dismantlement. It covers all the interoperability functions based on open standards, such as:

• integration between heterogeneous authoring applications (upstream, downstream, ...)
• communication with the extended enterprise or with the customers,
• visualisation,
• long term archiving and retrieval,
• data quality,
• and migration.

The first version of this web page has a limited scope, and will be regularly updated.

Scope

 The following picture describes a generic process of development of mechanical part.

Nota: Same figure than for the AIA – ASD Stan LOTAR “3D PMI” working group
 

List of use cases

The following table list the use cases to be supported by the international standards for interoperability.
 

         (*) LOTAR stands for Term Archiving and retrieval

Nota: for access to use cases for Long Term Archiving and retrieval, refer to the LOTAR “3D CAD with PMI” WG web page:

 http://www.lotar-international.org/lotar-workgroups/3d-cad-with-pmi.html
 

ASD SSG 5 years vision

The 5 years vision of the ASD SSG “Mechanical interoperability” working group is set up on three principles:

1)      Mechanical interoperability ensured by the availability of use cases, ISO information model, recommended practices and CAD vendors testing.

 The operational use of Mechanical interoperability standards by the A&D industries requires the availability of:

• Use cases for Mechanical interoperability, supporting A&D business needs and priorities,
• International standards for Mechanical Information models (Cf. principle 2)
• International and/or European recommended practices based on use cases, detailing the implementation of the ISO Mechanical information model,
• Interoperability testing of the standardised Mechanical interfaces and services of the different PLM vendors, through the participation in the CAX Implementer Forum.

2)      Reliable ISO Information models for Mechanical interoperability.

 The ASD SSG recommends the choice of a limited number of core harmonised ISO 10303 Application Protocols, having interdependencies properly specified and managed through the time.

The target of the ASD SSG is to prepare the extension of the AP 242 edition 2 to additional capabilities for mechanical data interoperability, taken into account the harmonisation / complementarities with the ISO 10303 STEP standards:

• STEP AP 224 “Mechanical product definition for process planning using machining features”
• STEP AP 238 “Application interpreted model for computerised numerical controllers”,
• STEP AP 209 “Composite and metallic structural analysis and related design”

Planned operational use of ISO standards for Mechanical interoperability and long term archiving:

(N1) ASD SSG recommends the use of ISO 14306 JT Ed1 for exchange of 3D tessellated geometry and 3D "JT BREP" representations. See related blip.

(N2) ASD SSG recommendation related to ISO 14306 JT Ed2 will be defined according to the final scope of the standard.

(N3) STEP AP214 recommended for exact geometry visualization only.

(N4) ASD SSG recommendations for these 3D visualisation formats in progress

Related standardization projects 
 

Related recommended practices

• CAX IF : Link to CAX IF
• JT IF : Link to JT IF