10 UMLDeployment 390 150 130 80 TRANSACTION -- amount tdate bg=#f5f5f5 UMLClass 610 150 130 80 BUYER -- phone ID first-name last-name bg=#f5f5f5 UMLClass 170 150 130 80 SELLER -- phone ID first-name last-name bg=#f5f5f5 Relation 290 170 120 40 lt=-< 10.0;20.0;100.0;20.0 Relation 510 170 120 40 lt=>- 10.0;20.0;100.0;20.0