Make modifications to the system to improve performance

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Reference no: EM131810648

A coffee shop called Tasty Coffee Company located at London airport departure lounge wants to improve its performance. The company has collected information about its current process and demand. The information is as follows:

• Service process has the following steps: 1) Take the order and payment Tria(0.5,1,2) - requires a cash machine and an employee, 2) Deliver the order to the drink machines Constant(0.5) - requires an employee, 3) Make the purchased drink Tea: Tria(0.5,1,3), Coffee: Tria(1,2,6), Coffee with syrup: Tria(2,3,7), Hot chocolate: Tria(1.5,3,5), Hot cholate with cream: Tria(2,3.5,8) – requires the appropriate machine and an employee, 4) deliver the drink to the customer Expo(0.5) – requires an employee.

• Company has one machine for making tea, one for making coffees and one for hot chocolates. Each machine can only be used to make one drink at the time.

• Company has two cash machines and two employees

• Company sells five different types of hot drinks; 30% of the customers order Tea, 30% order coffee, 10% order Coffee with syrup, 25% order hot chocolate and 5% order hot chocolate with cream.

• Time between customer arrivals follow Expo(3) distribution

• The number of customers arriving at the same time follows Poisson(1) distribution

• When a customer arrives and if both cash machine and an employee are idle the customer will be served immediately, otherwise the customer waits in a First-In-Firsts-Out (FIFO) queue

• Each customer orders only one drink.

• 5% of orders are identified as faulty after delivery to customer and need to be remade (order needs to be redelivered to drink machines with delay of Expo(0.5), purchased drink remade and then redelivered to customer according to the times specified earlier)

• All times are given in minutes.

• The system starts at time zero minutes with no products present and the machine(s) idle.

• Run the simulation for 120 hours.

• Perform multiple replication runs.

• Add animation to your model.

After completing the simulations, study the Reports to analyse the performance. Make modifications to the system to improve performance. Only the following modifications to the system are possible: unlimited changes to the number of cash machines, employees and drink machines.

Reference no: EM131810648

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