POSC Specifications: Epicentre Version 3.0
Logical Data Model
ENTITY
GRID_COMPOSITION
SUBTYPE OF
(
association
);
grid_defined_grid :
grid_defined_grid
;
grid_order :
ndt_pint1
;
grid_structured :
grid_structured
;
UNIQUE
si: grid_structured, grid_defined_grid;
WHERE
val: grid_order > 0;
END_ENTITY
; (* grid_composition *)
Generated on Tue Jul 10 19:38:00 2001
© Copyright 2001 POSC. All rights reserved.