POSC Specifications: Epicentre Version 3.0
Logical Data Model
ENTITY
CLASSIFICATION_CLASS
ABSTRACT SUPERTYPE OF
(
ONEOF
(
activity_class
,
document_specification_class
,
earth_feature_class
,
facility_class
,
geologic_process_class
,
license_right_class
,
material_class
,
property_class
,
reserves_class
,
well_log_trace_class
))
SUBTYPE OF
(
aliasable_technical_reference
);
end_date :
OPTIONAL
ndt_date
;
start_date :
OPTIONAL
ndt_date
;
INVERSE
common_activity_involvement :
SET [0:?] OF
common_activity_involvement
FOR
involved_class;
common_guideline_or_privilege :
SET [0:?] OF
common_guideline_or_privilege
FOR
classification_class;
pty_generic_property :
SET [0:?] OF
pty_generic_property
FOR
classification_class;
END_ENTITY
; (* classification_class *)
Generated on Tue Jul 10 19:37:38 2001
© Copyright 2001 POSC. All rights reserved.