POSC Specifications: Epicentre Version 3.0
Logical Data Model
ENTITY
REF_VERSION
(* Open *)
SUBTYPE OF
(
ref_data
);
identifier :
ndt_identifier
;
release_date :
OPTIONAL
ndt_date
;
INVERSE
association_reference :
SET [0:?] OF
association_reference
FOR
version;
earth_feature :
SET [0:?] OF
earth_feature
FOR
version;
ref_aliasable_data :
SET [0:?] OF
ref_aliasable_data
FOR
version;
technical_reference :
SET [0:?] OF
technical_reference
FOR
version;
UNIQUE
si: identifier;
END_ENTITY
; (* ref_version *)
Generated on Tue Jul 10 19:38:56 2001
© Copyright 2001 POSC. All rights reserved.