PART 2 (50 marks)
A. Create a UML class diagram for system described below.
Please include appropriate classes, their attributes (including types), and associations (with directions,
multiplicities, compositions, and role names). No need to describe the operations or visibility (-, +, #) of
attributes/roles.
Marks will be given for effort, even if you don't have a perfect solution. However, marks will be
lost for the common types of mistakes. Please do not include operations.
Problem description: a Soccer League Management System
You must model the domain of a soccer league management system where we want to represent at
least the following concepts:
1. There are many types of people involved: players, coaches, and referees.
2. Players and coaches belong to only one team.
3. Each team in the league has at least 18 players (including two goalkeepers), and 1 to 3 coaches.
4. Each game between two teams is refereed by 3 referees.
5. All people have a name, a date of birth, a city of origin, and a unique identifier. Players also have
a jersey number.
6. A season includes 24 games per team. The dates and locations of each game are determined in
advance.
7. As we would like to calculate some statistics during the season (including the ranking!), we must
be able to determine for each game: the final score, who scored the goals, and which goalkeepers
have been scored goals.
8. Players can also get, during a game, yellow and red cards. After a red card or two yellow cards in
a game, a player must skip the next game.
9. Assumption: players and coaches will not change during the season. During a game however, the
players on the field (including goalkeepers) can obviously change!
