POSC Specifications: Epicentre Version 3.0
Logical Data Model
ENTITY
REF_VERTICAL_DATUM
(* Fixed *)
SUBTYPE OF
(
ref_code
);
INVERSE
vertical_datum :
SET [0:?] OF
vertical_datum
FOR
datum_kind;
UNIQUE
si:
ref_code
.identifier;
END_ENTITY
; (* ref_vertical_datum *)
Generated on Tue Jul 10 19:38:56 2001
© Copyright 2001 POSC. All rights reserved.