ISO/TS 10303-421:2005

ISO/TS 10303-421:2005 specifies the application module for Functional data and schematic representation. The following are within the scope of ISO/TS 10303-421:2005:

• the classification, structure, properties and identification of products, activities, documents, organisations and people;

The structure of products includes both composition and connection relationships. A composition relationship can be either physical or functional. Similarly a functional relationship can be either physical or functional. Types or classes of relationship are defined in a Reference Data Library. The type of a relationship indicates whether it is functional or physical.

• schematic diagrams that presents the classification, structure, properties and identification of products, activities, documents, organisations and people by the relative position of symbols;
• associations between symbols on a schematic diagram and the things that the symbols represent.