10 UMLClass 500 90 130 100 ORDER -- onumber ID odate amount discount bg=#dddddd UMLClass 800 80 130 120 CUSTOMER -- cnumber ID phone city street bldg# bg=#dddddd Relation 620 120 200 50 lt=- m1=1..* m2=1 < Submits 10.0;20.0;180.0;20.0 Relation 850 190 30 70 lt=<<- bg=#dddddd 10.0;10.0;10.0;50.0 UMLClass 680 270 160 50 FREQUENT-CUSTOMER -- discount bg=#dddddd Relation 770 230 190 30 lt=- 10.0;10.0;170.0;10.0 UMLClass 880 270 160 50 NEW-CUSTOMER -- bg=#dddddd Relation 770 230 30 60 lt=- 10.0;10.0;10.0;40.0 Relation 930 230 30 60 lt=- 10.0;10.0;10.0;40.0 UMLClass 140 90 150 70 ITEM -- code ID price bg=#dddddd Relation 280 120 240 50 lt=- m1=1..* m2= * < Includes 10.0;20.0;220.0;20.0 UMLClass 370 180 90 50 -- quantity bg=#dddddd Relation 400 130 30 70 lt=. 10.0;50.0;10.0;10.0 Relation 200 150 30 70 lt=<<- bg=#dddddd 10.0;10.0;10.0;50.0 Relation 120 190 190 30 lt=- 10.0;10.0;170.0;10.0 Relation 120 190 30 60 lt=- 10.0;10.0;10.0;40.0 Relation 280 190 30 60 lt=- 10.0;10.0;10.0;40.0 UMLClass 70 230 130 80 BOOK -- ISBN ID1 title publisher bg=#dddddd UMLClass 220 230 130 70 DVD -- dvd-number ID1 producer bg=#dddddd