Complete Exercise O $[($p$.192)$ Use Case Diagram Only$]$; Use VP tool. Submit in native format $(.$vpp$).$

Below is the Exercise O:

Draw a use$-$case diagram and a set of activity diagrams

for a gym membership system. When members

join the gym, they pay a fee for a certain length

of time. Most memberships are for one year, but

membersh ips as short as two months are available.

Throughout the year, the gym offers a variety of discounts

on their regular membership prices $($e$.$g$.,$ two

memberships for the price of one for Valentine's

day$).$ It is common for members to pay different

amounts for the same length of membership. The

gym wants to mail out reminder letters to members

asking them to renew their memberships one month

before their memberships expire. Some members

have become angry when asked to renew at a much

higher rate than their original membership contract,

so the club wants to track the prices paid so that the

manager can override the regular prices with special

prices when members are asked to renew. The system

must track these new prices so that renewals can bt

processed accuratel y$.$ One of the problems in the

industry is the high turnover rate of members.

Although some members remain active for many

years, about half of the members do not renew their

memberships. This is a major problem, because the

gym spends a lot in advertising to attract each new

member. The manager wants the system to track each

time a member comes into the gym. The system will

then identify the heavy users and generate a report so

the manager can ask them to renew their member$$

ships early, perhaps offering them a reduced rate for

early renewal. Likewise, the system should identify

members who have not visited the gym in more than

a mQnth$,$ so the manager can call them and attempt to

reinterest them in the gym.