When members join the health club, they pay a fee for a certain length of time. The club wants to mail out reminder letters to the members asking them to renew their memberships one month before their membership expires. About half of the members are sent followup surveys to complete AND why they decided not renew so that the club can learn how to increase retention.If the member did not renew because of cost a special discount is offered to that customer. Typically 25% of accounts are reactivated because of this offer.

Every time a member enters the club an attendant takes his/her card and scans it to make sure that the person is an active member. If the member is not active the system presents the amount of money it costs to renew membership. The customer is given the chance to pay the fee and use the club and the system makes note of the reactivation of the account so that special attention can be given to this customer when the next round of renewal notices is dispensed.

Required: Draw a sequence diagram for the health club membership system.

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