10 UMLClass 80 70 460 170 "CLASS A" -- "_id": value("attribute 1")+...+value("attribute k") "attribute 1" ... "attribute k" "attribute m" ... "attribute n" "Related-to" UMLClass 700 230 450 150 "CLASS B" -- "_id": value("attribute 1")+...+value("attribute m") "attribute 1" ... "attribute m" "attribute n" ... "attribute p" UMLClass 230 310 150 100 "CLASS AB" -- "attribute-b 1" ... "attribute-b m" "Ref B" Relation 290 230 40 100 lt=- m1=1 m2=* 10.0;10.0;10.0;80.0 UMLState 60 50 500 380 Relation 290 250 430 160 lt=<<. 410.0;10.0;330.0;10.0;330.0;140.0;10.0;140.0 UMLState 680 210 490 190