POSC Specifications: Epicentre Version 3.0
Logical Data Model
ENTITY
EARTH_MODEL_COMPOSITION
SUBTYPE OF
(
association
);
earth_model :
earth_model
;
spatial_object :
spatial_object
;
UNIQUE
si: spatial_object, earth_model;
END_ENTITY
; (* earth_model_composition *)
Generated on Tue Jul 10 19:37:46 2001
© Copyright 2001 POSC. All rights reserved.