Letectví a kosmonautika - LOTAR - Dlouhodobá archivace a vyhledávání v digitální technické dokumentaci produktu 3D, CAD a PDM dat - Část 121: Sémantické vyjádření explicitní CAD 3D geometrie s informacemi o produktu a výrobě (Norma k přímému použití jako ČSN).

The information about the standard:

Designation standards: ČSN EN 9300-121
Classification mark: 310450
Catalog number: 518792
Publication date standards: 1.4.2024
The number of pages: 24
Approximate weight : 72 g (0.16 lbs)
Country: Czech technical standard
Kategorie: Technické normy ČSN

Annotation of standard text ČSN EN 9300-121 (310450):

This document is applicable to:
- machine-interpretable PMI "Semantic Representation" (Refer to Clause 3 for definition);
- the association of the above with 3D geometric shapes;
- the possible association of the above with Presentation of 3D Product and Manufacturing Information (PMI), and 3D annotations as specified in EN 9300-120.
In EN 9300-121, the technology used to preserve this 3D information is based on semantic representation. The main use cases are Certification, Product Liability and Design re-use.
For the purpose of this document, the semantic definition is at the level that supports associative "Cross-highlighting" for the purpose of human readability.
This document is applicable to:
- PMI presentation (specified in EN 9300-120);
- User defined attributes that are assigned to 3D geometric entities or at the part level. The archiving of the UDA is specified in EN 9300-120.
- How to preserve additional information:
- property rights;
- form features;
- CAD Assemblies.
- The semantics of special Notes outside the scope of PMI: ITAR/EAR, proprietary, and title block information, etc