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boundary_of_property_space

A <boundary_of_property_space> is a <specialization> that indicates the members of the subclass form a boundary of the superclass.
EXAMPLE The <property_space> that corresponds to the maximum speed head flow curve is a boundary of the <property_space> that corresponds to the pump operating envelope.

EXPRESS specification:

ENTITY boundary_of_property_space
SUBTYPE OF ( specialization);
SELF\specialization.subclass  :  property_space;
SELF\specialization.superclass  :  property_space;
END_ENTITY;

Attribute definitions:

subclass  :  The <property_space> whose members form the boundary of the <property_space> referenced by the superclass attribute.
superclass  :  The <property_space> that is bounded by the members of the <property_space> referenced by the subclass attribute.

References (1):

Name Type Referred through Express-G
specialization Entity
Subtype
Diagram 2

Inheritance graph

ENTITY boundary_of_property_space;
ENTITY thing;
id  :  STRING;
record_copy_created  :  OPTIONAL representation_of_Gregorian_date_and_UTC_time;
record_created  :  OPTIONAL representation_of_Gregorian_date_and_UTC_time;
record_creator  :  OPTIONAL possible_individual;
record_logically_deleted  :  OPTIONAL representation_of_Gregorian_date_and_UTC_time;
why_deleted  :  OPTIONAL class_of_information_representation;
ENTITY abstract_object;
ENTITY relationship;
ENTITY specialization;
ENTITY boundary_of_property_space;
subclass  :  property_space;
superclass  :  property_space;
END_ENTITY;