Create an appropriate UML class diagram for the following problem.

ARENA Application

Problem

The popularity of the Internet and the World Wide Web has enabled the creation

of a variety of virtual communities, groups of people sharing common interests,

but who have never met each other in person.

Many multi$-$player computer games now include support for the virtual

communities that are players of the given game. Players can receive news about

game upgrades, new game maps and characters; they can announce and organize

matches, compare scores and exchange tips. The game company takes advantage

of this infrastructure to generate revenue or to advertise its products.

However, currently each game company develops such community support in

each individual game, this results in many disadvantages such as learning curve

for players when joining new community, for advertisers who need to contact

each individual community separately, etc.

Objectives

A company would like to develop a software project, which aims to:

$$ Provide an infrastructure for operating an arena, including registering new

games and players, organizing tournaments, and keeping track of the

players$$ scores.

$$ Provide a framework for game developers for developing new games, or for

adapting existing games into this framework