This is the presentation showing how to make relationship in class diagram. This Presentation was presented on the Youtube here is the link https://youtu.be/NWmwia80WMU

1. Making Relationships
in
Class Diagram
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2. What is Class Diagram?
•It is a static diagram, use to describe the structure
of the system by using its classes.
•In class diagram we show the relationship of the
classes with each other, So one can understand
how the classes are interacting with each other and
can understand the overall working of the system
as well.

3. How to make a class Diagram?
• It’s a difficult thing until you don’t know the right
approach to do this.
• The right approach to do this, is binary Relation finding.
• Once you have Binary Relations between classes you
have the class diagram.
• Let's see practically. . . .

4. Suppose we have following classes
• These are just assumptions to make you focus on the relationship making processes
not inside the class.
A B
C D

5. Making Binary Relationship
• Chose the 1st class and the 2nd class.
• Check and try to find out if there is any relation between first and 2nd class.
• Next keep the 1st class and Check if there is any relation between 1st and 3rd class.
• Next check the 1st one with the 4th and than 5th and so on….
• After checking the 1st with every class pick the 2nd class and compare it with 1st than
with 3rd, 4th and so on till the last class.
• Do this for all classes.

6. Example
• We compare A with all….
A B
A C
A D

7. Example
Comparing B with all. . . .
B A
B C
B D

8. Example
• Comparing C with all…
C A
C B
C D

9. Example
• Comparing D with all . . . .
D A
D B
D C

10. Making of Full diagram
A B
C D

11. How to find out relation between two classes
• Best way: It comes from the requirements.
• Assume: Assume the scenario and find out the practical options.

12. Thank You
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