An Product_feature_and_activity_or_state_space is a Physical_space that has a Product_feature_space component and either an Activity_space component or a State_space component.
EXAMPLE - The Product_design that is beam 'XB_123' can be regarded as a one dimensional set of cross section surfaces. This one dimensional set is a Product_feature_space.
The Activity that is 'pre-stressing of XB_123' can be regarded as a one dimensional set of states. This one dimensional set is a State_space.
The corresponding 'product' space which is a two dimensional set of pre-stressing states for cross sections is a Product_feature_and_activity_or_state_space.
EXPRESS specification:
*) ENTITY Product_feature_and_activity_or_state_space SUBTYPE OF (Physical_space); END_ENTITY; (*