TS EN 9300-100

TS EN 9300-100 defines the common concepts used for long-term archiving and retrieval of CAD-based mechanical product information in aerospace. It provides a conceptual framework for elementary parts and assemblies, focusing on how 3D mechanical information is organised, what its essential building blocks are, and how those building blocks relate to one another within the LOTAR approach.

How CAD mechanical information is structured

According to the scope, CAD mechanical information is divided into two main categories: assembly structure and geometric information. Geometric information includes both explicit and implicit geometric representations, and it also covers Geometric Dimensioning and Tolerancing with Form Features. In general technical terms, this distinction matters because preserving a product model is not only about retaining shape data; it is also about keeping the assembly relationships, positional context, and descriptive features needed to understand the design later on.

Why the common concepts matter in the LOTAR family

This part applies the fundamentals from EN 9300-003 to the specific context of long-term archiving of CAD mechanical models. The EN 9300-1XX family is organised as a sequence of parts, each building on the previous one and adding complexity to the CAD data model. In practical terms, this kind of structure supports more consistent interpretation of archived information, clearer treatment of dependencies between data elements, and a controlled path for extending the framework as aerospace requirements evolve.

The standard is therefore concerned with the conceptual organisation of CAD mechanical information rather than with a single file format or a standalone storage procedure. It serves as a foundational reference for understanding which information elements are involved in long-term preservation and how they are connected for retrieval over time.