10 UMLClass 50 130 160 90 STUDENT -- s# ID1 first-name last-name dob bg=#dddddd UMLClass 670 130 140 80 SUBJECT -- code ID1 title credits bg=#dddddd UMLClass 340 130 170 80 ENROLMENT -- s# ID1 FK1 code ID1 FK2 edate ID1 bg=#dddddd Relation 200 150 160 50 lt=- m1= r1= m2=* Performs > 10.0;20.0;140.0;20.0 Relation 500 150 190 50 lt=- m1=* r1= m2= < Is-involved-in 10.0;20.0;170.0;20.0