Requirement_decomposition_arm
short long

d	Characteristic_select
e	Constraint_occurrence
e	Design_characteristic_occurrence
f	Get_rvd
d	Material_conductivity_classification
e	Material_electrical_conductivity_requirement
e	Operational_requirement_relationship
e	Predefined_requirement_view_definition
d	Rd_documented_element_select
d	Rd_material_item_select
d	Rd_property_assignment_select
d	Rd_requirement_assignment_item
d	Relationship_operation
e	Shape_and_view_based_constraint_occurrence
f	Valid_constraining_shape
e	View_based_constraint_occurrence