POSC Specifications: Epicentre Version 3.0
Logical Data Model
ENTITY
REF_COORDINATE_SYS_CONSTRAINT
(* Open *)
SUBTYPE OF
(
ref_code
);
INVERSE
axis_type :
SET [0:?] OF
coordinate_axis_constraint
FOR
coordinate_system_constraint;
coordinate_system :
SET [0:?] OF
coordinate_system
FOR
ref_coordinate_sys_constraint;
property_kind :
SET [0:?] OF
property_kind
FOR
geometry_constraint;
UNIQUE
si:
ref_code
.identifier;
WHERE
val: EXISTS(axis_type);
END_ENTITY
; (* ref_coordinate_sys_constraint *)
Generated on Tue Jul 10 19:38:49 2001
© Copyright 2001 POSC. All rights reserved.