Bank System Customers arrive  Sign-in  Get Help Three types of customers Basic need customers: They are directed to either an ATM (most likely) or a Teller by the SignIn employee Moderate need customers: They can be directed to an ATM or a Teller (most likely) or a Manager Advanced need customers: They can be directed to a Teller or a Manager (most likely)

SignIn is where one bank employee helps a customer how to navigate in the bank After SignIn, a customer is told to go to either ATM line, Teller Line, or Manager Line SignIn time depends on the customer type

Bank System Three types of service providers ATM area: A single queue feeds to ATM service area An ATM execution time is independent of the customer type Currently there are 3 ATMs in the ATM service area Tellers: A single queue feeds to the Tellers A Teller execution time is independent of the customer type Currently there are 4 tellers Managers: A single queue feeds to the Managers A Manager execution time is independent of the customer type Currently there are 2 managers

All queue disciplines are first-come-first-served

The bank is planning to hire two additional employees and want to use simulation to decide for which positions these two additional employees should be hired? There are the following 4 hiring scenarios Scenario A : 2 sign-in employees, 0 teller, 0 manager Scenario B : 0 sign-in employee, 2 tellers, 0 manager Scenario C : 0 sign-in employee, 0 teller, 2 managers Scenario D : 1 sign-in employee, 1 teller, 0 manager Scenario E : 1 sign-in employee, 0 teller, 1 manager Scenario F : 0 sign-in employee, 1 teller, 1 manager Comparison is based on the following: How much time a customer spends in the bank (from entrance until leaving) on average? How many customers are present inside the bank on average? How much time customers directed to each service option (ATM, Teller, Manager) spend in the corresponding queue on average?