10 UMLClass 20 180 160 190 CUSTOMER -- customer_code ID company_name contact_name contact_title address city region [0..1] postal_code [0..1] country phone fax [0..1] bg=#dddddd UMLClass 700 430 160 210 SUPPLIER -- company_name ID contact_name contact_title address city region [0..1] postal_code country phone fax [0..1] home_page[0..1] bg=#dddddd UMLClass 310 510 230 130 PRODUCT -- product_name ID quantity_per_unit [0..1] unit_price units_in_stock units_on_order reorder_level bg=#dddddd Relation 530 550 190 50 lt=- m1=* m2=1 < Supplies 10.0;20.0;170.0;20.0 UMLClass 330 160 210 210 ORDER -- order_id ID order_date required_date shipped_date freight ship_name ship_address ship_city ship_region [0..1] ship_postal_code [0..1] ship_country bg=#dddddd Relation 170 250 180 50 lt=- m1=1 m2=* < Submitted-by 10.0;20.0;160.0;20.0 Relation 410 360 140 170 lt=- m1=* m2=* Included-in ^ 10.0;10.0;10.0;150.0 UMLClass 210 390 130 80 -- unit_price quantity discount bg=#dddddd Relation 330 420 110 30 lt=. 10.0;10.0;90.0;10.0