A customer goes to a coffee shop, waits in the queue and places his order. Entry: The Cycle Time is 1.5 mins/customer The Throughput is 0.66 customers/min The Capacity is 40 customers/hr Order Taking: The Cycle Time is 1.8 mins/customer The Throughput is 0.55 customers/min The Capacity is 33 customers/hr Using Little’s Law, please explain with steps, how to determine the number of people in the queue (buffer) and the time they spend in the queue.

A customer goes to a coffee shop, waits in the queue and places his order.

Entry:

The Cycle Time is 1.5 mins/customer

The Throughput is 0.66 customers/min

The Capacity is 40 customers/hr

Order Taking:

The Cycle Time is 1.8 mins/customer

The Throughput is 0.55 customers/min

The Capacity is 33 customers/hr

Using Little’s Law, please explain with steps, how to determine the number of people in the queue (buffer) and the time they spend in the queue.

 

Solution

Since arrival is 0.66 customers/min (since throughput of entry is 0.66 customers/min)

and

AllEscortAllEscort