POSC Specifications: Epicentre Version 3.0
Logical Data Model
ENTITY
OFFSHORE_BLOCK
(* Local *)
SUBTYPE OF
(
offshore_legal_survey_area
);
offshore_area :
OPTIONAL
offshore_area
;
offshore_quadrant :
OPTIONAL
offshore_quadrant
;
UNIQUE
si:
earth_feature
.identifier,
offshore_legal_survey_area
.country;
END_ENTITY
; (* offshore_block *)
Generated on Tue Jul 10 19:38:08 2001
© Copyright 2001 POSC. All rights reserved.