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event

An <event> is a <possible_individual> with zero extent in time. An <event> is the temporal boundary of one or more <possible_individual>s, although there may be no knowledge of these <possible_individual>s.
EXAMPLE The connection of power to a pump is an event that marks the beginning of a temporal part of that pump.

EXPRESS specification:

ENTITY event
SUBTYPE OF ( possible_individual);
END_ENTITY;

References (4):

Name Type Referred through Express-G
cause_of_event Entity
Attribute 'caused'
Diagram 9
point_in_time Entity
Supertype
Diagram 9
possible_individual Entity
Subtype
Diagram 6
temporal_bounding Entity
Attribute 'part'
Diagram 9

Inheritance graph

ENTITY event;
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 possible_individual;
ENTITY event;
END_ENTITY;