A Parameterisation_element is a relationship that is between a Product_specification_or_set, Activity or State and a Maths_value; and that is a member of a Parameterisation.
A Parameterisation_element identifies a physical thing by a Maths_value.
EXPRESS specification:
*) ENTITY Parameterisation_element identifier : Maths_value; physical_space : Class_of_physical_individual; END_ENTITY; (*
Attribute definitions:
identifier: the Maths_value that corresponds to the physical_space.
physical_space : the Class_of_physical_individual that corresponds to the identifier.