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UML Use Case and Class Diagram Exercises

Here are the answers: 1. The states are: At 1st Floor, Ascending, Descending to arrived at 1st Floor, arrive, Idle 2. If the Idle state has time over, the lift will transfer to the Descending to 1st Floor state.

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Shariar Parvez Tonmoy
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88 views11 pages

UML Use Case and Class Diagram Exercises

Here are the answers: 1. The states are: At 1st Floor, Ascending, Descending to arrived at 1st Floor, arrive, Idle 2. If the Idle state has time over, the lift will transfer to the Descending to 1st Floor state.

Uploaded by

Shariar Parvez Tonmoy
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PPTX, PDF, TXT or read online on Scribd
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Chapter 2

UML
Exercise 1
Please draw a use case diagram for class management system.

Use case: login in; get back password; look up class information;
modify class information; insert class information; delete class
information

Users: administrator and dean principal


dean principle

look up class information <<in


clud
e >>
<<inc
lude >
>
delete class information
<<include >> login in get back password
administrator > >
modify class information de
nc lu
< <i

insert class information


Exercise 2
Please draw a use case diagram for student grade system.

Use case: login in; get back password; look up student grade; modify
grade; insert grade; delete grade; save grade

Users: teacher and student


<<include >>

insert grade > save grade


ude>
< i ncl
<

>
e>
lud
inc
modify grade

<<
student
teacher look up grade

delete grade
<<extend >>

login in get back password


Exercise 3
(1)What is the relationship between class Student and class Course?
(2)Can you describe the meaning of this diagram?
(3) Write the java code of this class diagram.
public class Student{
private String name;
private Course[] selecters;
public void Student(){}
public void test(){}
}
Exercise 4
1 Which one is the participant of the
system ？
A① B② C③ D④

2 Which one is the object ？


A① B②③④ C ④
D⑤⑥⑦⑧⑨⑩

3 What operation of class CreditService is


called up by class Server ？
A⑦ B⑧ C ⑦⑧ D⑧⑨
1 指出左图中的参与者？
A① B② C③ D④

2 哪些是对象？
A① B②③④ C ④
D⑤⑥⑦⑧⑨⑩

3 Server 类调用了 CreditService 类中的


什么操作？
A⑦ B⑧ C ⑦⑧ D⑧⑨
1. A 2. B 3. B
going up
At 1st Floor Ascending

Descending to arrived at 1 Floor arrive


st
going up
1st Floor
Descending arrive Idle

going down

time over

(1) which one is the state ？


(a) time over (b) arrive (c) At 1st Floor
(2) If state Idle is time over, which state will the lift transfer to?
 (a) Descending to 1st Floor (b) Ascending (c ) final state
going up
At 1st Floor Ascending

Descending to arrived at 1 Floor arrive


st
going up
1st Floor
Descending arrive Idle

going down

time over
Answer:
(1) which one is the state ？ (1) (c)
(2) (a)
(a) time over (b) arrive (c) At 1st Floor
(2) If state Idle is time over, which state will the lift transfer to?
 (a) Descending to 1st Floor (b) Ascending (c) final state

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