未分类题

在UML中，对象行为是通过交互来实现的，是对象间为完成某一目的而进行的一系列消息交换。消息序列可用2种图来表示，强调消息时间次序的图称为(1)，该图的特点是(2)，强调参加交互的对象的组织的图称为(3)，这2种图是(4)。
A.活动图(activity diagram)
B.状态图(statechart diagram)
C.序列图(sequence diagram)
D.协作图(collaboration diagram)

A.活动图(activity
B.状态图(statechart
C.序列图(sequence
D.协作图(collaboration

【参考答案】

C
解析：序列图用来描述对象之间动态的交互关系，着重体现对象间消息传递的时间顺序。序列图允许直观地表示出对象的生......

(↓↓↓ 点击下方‘点击查看答案’看完整答案 ↓↓↓)

<上一题目录下一题>

热门试题

未分类题

听力原文：W: Hi, Mark. I didn't know you could paint.M: Well, I'm just learning. It's for my studio art class.W: It's pretty good for a beginner.M: Oh thanks, Judy. The instructor really liked my schedules, but she hasn't seen my painting yet.W: Eh, there seems to be something wrong with it though.M: Yeah, I know what you mean. It doesn't look right to me either,W: I think I know, Look here at the sky, it just seems to fill in with other colors of painting.M: What do you mean? Everyone knows the sky is bluE.W: Well, that depends. Sometime it is and sometime it isn't, as sunset can be full of reds and purples, Well, even now, take a look now Mark, what do you see?M: It looks blue to mE.W: Look again. Do you see a kind of tannish color?M: Oh yeah, I see what you mean.W: By adding some tan to your sky, I think you'll get a more accurate picture, and the color will look more natural.M: I think I'll try that. Gee, how did you get to know so much about painting? Have you taken a lot of courses?W: No, actually. But my father is an artist.M: A professional artist?W: Oh yeah.M: I wish we could talk some more, Judy. How about going for a cup of coffee? I'm ready for a break.W: I'd love to, But I have to take a history exam. In fact, I was just on my way to the classroom and I think I am already latE.Maybe tomorrow.M: Great, I'll meet you at the students' center after my class. A little after three, ok?W: Sounds gooD.Got to be going now.M: Bye, Judy.(23)A.A study group.B.A history exam.C.The man's painting.D.A professional artist.

A.M:
B.
W:
C.
M:
D.
W:
E.
M:
F.
M:
G.
W:
H.
W:
I.
W:
J.
M:
K.
M:
L.
M:
M.
W:
N.
M:
O.
M:
P.
(23)
A.A
Q.
B.A
R.
C.The
S.
D.A

未分类题

听力原文：W: Do you think you'll have enough money saved by next month to get a computer?M: Not by a long shot. It'll be three months at the earliest.Q: What does the man imply?(14)A.He hopes to buy the computer after three months.B.He has been saving for three months.C.The computer was delivered earlier than he expecteD.D.The computer he wants is not availablE.

A.Q:
B.He
C.
B.He
D.
C.The
E.
D.The

相关试题