参考答案:
【问题1】(4分,各1分) A1:User A2:Author A3:Reviewer A4:PCChair
【问题2】(3分,各1分)
U1:list accepted/rejected papers U2:browse submitted papers
U3:assign paper to reviewer
注:U2和U3的答案可互换
【问题3】(4分,各2分)
(1):<<extend>> (2):<<include>>
【问题4】(4分,各1分)
Action1:enter title and abstract
Action2:select subject group
Action3:select paper location
Action4:upload paper
详细解析: