POSC Specifications: Epicentre Version 3.0
Logical Data Model
ENTITY
TEMPORAL_EVENT
(* Local *)
SUBTYPE OF
(
temporal_object
);
parent_event :
OPTIONAL
temporal_event
;
INVERSE
child_event :
SET [0:?] OF
temporal_event
FOR
parent_event;
pty_geologic_age :
SET [0:?] OF
pty_geologic_age
FOR
temporal_event;
temporal_period :
SET [0:?] OF
temporal_period_event_boundary
FOR
temporal_event;
UNIQUE
si:
technical_reference
.identifier;
END_ENTITY
; (* temporal_event *)
Generated on Tue Jul 10 19:39:11 2001
© Copyright 2001 POSC. All rights reserved.