POSC Specifications: Epicentre Version 3.0
Logical Data Model
ENTITY
TYPICAL_FACILITY_CLSN
SUBTYPE OF
(
transient_association
);
facility_class :
OPTIONAL
facility_class
;
material_class :
OPTIONAL
material_class
;
typical_facility :
typical_facility
;
UNIQUE
si:
transient_association
.end_time,
transient_association
.start_time, facility_class, material_class, typical_facility;
WHERE
mse: EXISTS(facility_class) XOR EXISTS(material_class);
END_ENTITY
; (* typical_facility_clsn *)
Generated on Tue Jul 10 19:39:15 2001
© Copyright 2001 POSC. All rights reserved.