Class Diagram

Question 1

What annotation is for private and for public?

Answer 1

1. private -
2. public +

Question 2

How to draw generalization?

Answer 2

A ——-|> B

This means that B can use parameter from A

Question 3

What shape is used for aggregation?

Answer 3

A <>—— B

Car<>—-Wheel (wheel doesn’t always need a car)

Term : Loose Coupling
The diamond goes to the bigger state, so diamond goes to the car

Question 4

What shape is used for composition

Answer 4

A <>(Solid)—-B

Folder <solid>----- Files (When folder is deleted, all files gone)

Term : Tight Coupling
Whole project are created, live, die together

Question 5

What is the relation term for Aggregation?

Answer 5

“is part of”

Question 6

What is the relation term for Composition?

Answer 6

“is entirely made”

Question 7

What is the relation term for Generalization?

Answer 7

“is a”

subclass inherits a superclass

Question 8

What are the lines for Association?

Answer 8

2. ———>

Question 9

What does no arrow mean in association ? (—————)

Answer 9

1. Info can flow in both directions