POSC Specifications: Epicentre Version 3.0
Logical Data Model
ENTITY
MATERIAL_CLASS_CLASSIFICATION
(* Open *)
SUBTYPE OF
(
class_classification
);
be_classified_as :
material_class
;
have_as_a_member :
material_class
;
UNIQUE
si: be_classified_as, have_as_a_member;
END_ENTITY
; (* material_class_classification *)
Generated on Tue Jul 10 19:38:06 2001
© Copyright 2001 POSC. All rights reserved.