POSC Specifications: Epicentre Version 3.0
Logical Data Model
ENTITY
OFFSHORE_QUADRANT
(* Local *)
SUBTYPE OF
(
offshore_legal_survey_area
);
range :
OPTIONAL
ndt_pint1
;
ref_east_or_west :
OPTIONAL
ref_east_or_west
;
ref_north_or_south :
OPTIONAL
ref_north_or_south
;
tier :
OPTIONAL
ndt_pint1
;
INVERSE
block :
SET [0:?] OF
offshore_block
FOR
offshore_quadrant;
UNIQUE
si:
earth_feature
.identifier,
offshore_legal_survey_area
.country;
END_ENTITY
; (* offshore_quadrant *)
Generated on Tue Jul 10 19:38:08 2001
© Copyright 2001 POSC. All rights reserved.