10 UMLClass 230 110 130 80 EMPLOYEE -- e# ID fname lname bg=#dddddd UMLClass 650 120 150 50 HIRE -- when-left[0..1] bg=#dddddd UMLClass 360 130 120 30 when-hired bg=#dddddd Relation 470 120 200 50 lt=- m1= r1= m2=0..1 Is-hired > 10.0;20.0;180.0;20.0