Constantine and lockwood have proposed a notation for diagramming use - case relationships , but i prefer to use standard uml , introducing stereotypes when no existing notation convention can be pressed into service ) constantine和lockwood已經(jīng)提議用圖表表示用例關(guān)系的表示法,但我更喜歡使用標(biāo)準(zhǔn)uml ,當(dāng)暫時(shí)沒有與現(xiàn)成表示法可以使用時(shí),標(biāo)準(zhǔn)uml會(huì)使用固定形式。