ISO/TS 10303-1749:2006 specifies the application module for Styled curve.
The following are within the scope of ISO/TS 10303-1749:2006:
curve font definition;
curve font appearance;
items within the scope of application module Colour, ISO/TS 10303-1002;
items within the scope of application module Elemental geometric shape, ISO/TS 10303-1004.