Question

I came across with these situation while building a class diagram for a system, I never cross with a similar situation so I am not sure how to do it

I have this two classes “Swimmer” and “Swimming Match”, the issue is with scheduling the match. The match as 3-4 days where where it can occur and the Swimmers can pick the days where they would prefer it to happen, how do I represent this exactly ?

Answer 1

You could have a class for Swimmer, another class for Swimming Match and then you have a couple of options:

1. Use an association class to represent each acceptable day when the match can occur
2. Create a new class AcceptableDay which has three properties: Day (the day it could occur), swimmer (an instance of the Swimmer class) and match (an instance of Swimming Match)

For an example of an association class, see here.