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classumlclass-diagram

Drawing UML Class Diagram with many associations between two classes

I'm designing an online music website where there are two main objects: User and Music. There are many operations users can do to music,like they can upload,listen to, collect,share and download a music. If I draw an UML class diagram, the diagram would look like

this:

So my question is that is it OK with so many associations?

Solution

  • Those are not association, but methods which are to be defined in Music. You probably have just one association between both.

    You might want to synthesize some use case cases first:

    enter image description here

    Based on this you can create a class model:

    enter image description here

    And detail this with behavioral design:

    enter image description here