POSC Specifications: Epicentre Version 3.0
Logical Data Model
ENTITY
EXPLORATION_AREA
(* Local *)
SUBTYPE OF
(
technical_earth_feature
);
business_associate :
OPTIONAL
business_associate
;
effective_date :
OPTIONAL
ndt_date
;
expiry_date :
OPTIONAL
ndt_date
;
UNIQUE
si:
earth_feature
.identifier,
earth_feature
.unique_within, effective_date;
END_ENTITY
; (* exploration_area *)
Generated on Tue Jul 10 19:37:48 2001
© Copyright 2001 POSC. All rights reserved.