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specialization_by_role

A <specialization_by_role> is a <specialization> that indicates that the <role_and_domain> is of the <role> indicated by the superclass.
EXAMPLE Manufacturing company is a specialization by role of manufacturer.

EXPRESS specification:

ENTITY specialization_by_role
SUBTYPE OF ( specialization);
SELF\specialization.subclass  :  role_and_domain;
SELF\specialization.superclass  :  role;
END_ENTITY;

Attribute definitions:

subclass  :  The <role_and_domain> that is the subclass in the <specialization_by_role>.
superclass  :  The <role> that is the superclass in the <specialization_by_role>.

References (1):

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

Inheritance graph

ENTITY specialization_by_role;
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 specialization_by_role;
subclass  :  role_and_domain;
superclass  :  role;
END_ENTITY;