ISO/TS 10303-1789:2018-11 specifies the application module for
Geometric constraints.

The following are within the scope of
ISO/TS 10303-1789:2018-11:

• explicit geometric constraints as descriptive relationships between points, curves and surfaces in a
  product shape model, both in two and in three dimensions;
• defined constraints, for the representation of geometric relationships defined descriptively, with implied
  mathematical semantics;
• geometric constraints with associated linear or angular dimensions;
• items within the scope of application module Explicit constraints, ISO/TS 10303-1788;
• items within the scope of application module Primitive solids, ISO/TS 10303-1791;
• items within the scope of application module Swept solid, ISO/TS 10303-1321.