CODEWITHSUNDEEP
associationsclass-diagrammultiplicity
user6268615
user6268615

Reputation:

Multiplicity in association in class diagram

This may sounds stupid but I am confused with the multiplicity between two classed in UML class diagram.

The classes are admin and payment.

It is very clear that

1 admin can accept 0..* payment,

but I'm not sure about can 0..* payment accepted by 1 admin or 1..* admin?

If were talking about that particular payment at that moment, the payment is only handling by 1 admin(of course) but in a bigger picture many different payments can be accepted by many different admins right?

I already tried to search through Google for many examples but can't relate them to my case. My question is the same as: 1 house can has many rooms, and so many rooms is having by 1 house, but in bigger picture many different houses can have many rooms also. (right?)

I expect someone could explain more detail for me, thanks in advance..

Upvotes: 2

Views: 819

Answers (1)

Iain Duncan
Iain Duncan

Reputation: 3394

The multiplicity refers to the number for the instances of the model. Do in your examples for an insurance of a payment it is handled by 1 admin or a specific window has 1 house. So 1 is the correct value in both cases.

The total number of any of these things is irrelevant as almost always it would be more than 1 and 0 would make no sense.

Upvotes: 0

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