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I have a specific question that I can't resolve. This question is an UML problem, there is my application :

I would like to create a Statistics Volleyball application. I want to change the parameter of a player in real time by modifying a table in attributes player. The final goal is to get information about players from teams and for different matches. The problem for me is my UML representation. I don't think it's the best way to represent a sport team but I can't find it. Could you help me to clarify the UML representation following.

UML model (Players,Teams,Matches,Sets)

For me, the links in the UML model are "is composed of" and the dotted line "is associated to".

At the end, I want to guide the user with this following tree of decisions to display the statistics:

Choose a Team => Choose the matches from the team or display global stats of the team => Display all the stats from 1 match or choose a set in the match => Display all the stats from the set.

Can you tell me if this UML chart is right and which classes should I extend from (Ex: Players & Team) to get all the information that I need when I want to change the statistics of a Player during a Match and then display all those stats after.

Thanks for you help.

Best regards.

Julien Weber

Stefan Zobel
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JulienWeber
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  • It does not seem like you have a programming problem here - you are asking for a review of your UML chart - for your application you should already have some ideas about some of the questions you have raised here. – ishmaelMakitla Oct 16 '16 at 17:24

1 Answers1

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  • All your aggregations are drawn the wrong way.
  • The Dependency (dotted line) is superfluous.
  • Name of opponent in Match is bad design. Create two associations with Player and name them player1 and player2 or the like.
  • There is too few information about the statics you want. But you should create an association class Statistics between Player and Match
qwerty_so
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  • Thanks for your answer. I just want to get the statistics of one Team so I choosed to put the name of the Opponent as a keywork for different Match. – JulienWeber Oct 17 '16 at 10:19