object build connect object element type object element object style object element object style object unidirect object namespac illeg model element connect except illeg model element connect except except illeg model element connect except make element type non nl element non nl element non nl connect valid element type element element except object connect element type meta type associ connect model impl core factori build associ classifi element aggreg kind style classifi element aggreg kind style unidirect element type meta type associ end element associ connect model impl core factori build associ end element element element classifi connect model impl core factori build associ end element element element type meta type associ connect model impl core factori build associ element element element type meta type associ role connect model impl collabor factori build associ role element style element style unidirect element type meta type gener connect model impl core factori build gener element element element type meta type connect model impl core factori build element element element type meta type usag connect model impl core factori build usag element element element type meta type depend connect model impl core factori build depend element element element type meta type abstract connect model impl core factori build realiz element element namespac element type meta type link connect model impl common behavior factori build link element element element type meta type extend extend us case rememb draw extens port base port connect model impl us case factori build extend element element element type meta type includ connect model impl us case factori build includ element element element type meta type transit connect model impl state machin factori build transit element element connect except connect 