Quiz 2 operational management.
Process utilization is the ratio between __________ and __________.
flow rate, process capacity.
utilization
flow rate/capacity
Bottleneck
resource with the smallest capacity in a process
Capacity-constrained
the case in which demand exceeds supply, and the flow rate is equal to process capacity.
demand-constrained
the case in which process capacity exceeds demand, and thus the flow rate is equal to the demand rate.
Process Capacity
the maximum flow rate a process can provide per unit of time. It is the smallest capacity of all resources in the process.
Capacity of a Resource
the maximum number of flow units that can flow-through a resource per unit of time. Capacity =1/Processing Time
demand rate
the number of flow units that customers want per unit of time
Processing Time
the time it takes a resource to complete one flow unit
Refer to the process flow diagram below. Station 1 is _______ from station 2.
upstream
Which of the following is a resource in an outpatient medical clinic?
x-ray machine
The capacity of a resource determines the __________ number of flow units that can flow through that resource per unit of time.
Maximum
The process capacity determines the __________ a process can provide per unit of time.
Maximum flow rate
When will the utilization of a bottleneck resource be less than 100%?
When the process is demand-constrained
You are filling your prescription at a pharmacy. Right now, you are waiting in line in front of the pickup window. Which process is upstream, relative to your current position in the process?
Dropping of the prescription
flow rate
(aka throughput) = min{Process Capacity, Demand Rate}
Job candidates are leaving an office every 50 minutes. Each candidate goes through three activities during the office visit: verification, written test, and interview. Verification takes 1 minute, the written test takes 40 minutes, and the interview takes 10 minutes. Assume there is only one resource dedicated to each activity. What is the bottleneck capacity in candidates per hour?
1.5
Patients are arriving at a clinic at a rate of two per minute. Each patient's visit consists of four steps: check in, record vital signs, receive treatment, and check out. A receptionist takes 1 minute to check a patient in. A nurse takes 2 minutes to record the patient's vital signs. A doctor spends 10 minutes with a patient. A staff member takes 3 minutes to check a patient out. What is the cycle time of the process in minutes?
10
A bank has three tellers. It takes a teller 6 minutes to serve one customer. What is the capacity of the bank (in customers per hour) over the course of an 8-hour workday?
240
Patients are arriving at a clinic at a rate of two per minute. Each patient's visit consists of four sequential steps: check in, record vital signs, receive treatment, and check out. A receptionist takes 1 minute to check a patient in. A nurse takes 2 minutes to record the patient's vital signs. A doctor spends 10 minutes with a patient. A staff member takes 3 minutes to check a patient out. What is the utilization of the checkout resource?
30%
Students are going through a three-step process to obtain their ID cards. Each student will spend 2 minutes at the registration desk before going to one of three cashiers to pay a fee for the ID card. After that, he/she will visit one of four ID processing stations to have his/her picture taken and ID card printed. Visits to the cashier and ID processing station take 10 and 20 minutes respectively. If the demand rate is 0.5 students per minute, the cycle time of the process is _________ minutes per student (); and the station utilization of Cashiers is _________%.
5.0, 66.7%
Patients are arriving at a clinic at a rate of two per minute. Each patient's visit consists of four steps: check in, record vital signs, receive treatment, and check out. A receptionist takes 1 minute to check a patient in. A nurse takes 2 minutes to record the patient's vital signs. A doctor spends 10 minutes with a patient. A staff member takes 3 minutes to check a patient out. What is the process capacity in patients per hour?
6
Job candidates are leaving an office every 50 minutes. Each candidate goes through three activities during the office visit: verification, written test, and interview. Verification takes 1 minute, the written test takes 40 minutes, and the interview takes 10 minutes. Assume there is only one resource dedicated to each activity. What is the utilization of the bottleneck resource?
80%
On a process flow diagram, __________ are used to show the journey of a flow unit from input to output.
Arrows
Resources are shown in a process flow diagram as __________.
Boxes
Customers drive away after failing to find a place to park at a supermarket. The current process is _________.
Capacity-constrained
Capacity is constrained when __________ exceeds __________ and the flow rate is equal to __________.
Demand, supply, process capacity
The capacity of a nonbottleneck resource is __________ the capacity of the process.
Larger than
Which of the following statements about process analysis is TRUE?
Process analysis is a framework to understand an organization's detailed operations.
The __________ of a resource is how long that particular resource takes to complete one flow unit.
Processing Time
Job candidates are leaving an office every 50 minutes. Each candidate goes through three activities during the office visit: verification, written test, and interview. Verification takes 1 minute, the written test takes 40 minutes, and the interview takes 10 minutes. Assume there is only one resource dedicated to each activity. Which of the following conclusions can be drawn?
The process is demand constrained
cycle time
Time between finished goods leaving the system = 1/Flow rate
Inventory is shown as __________ in a process flow diagram.
Triangles
