Questions and Answers of Operations And Supply Chain Management The Core

Initially, assume that Phil wants to minimize his inventory requirements. Assume that each order will be only for what is required for a single period. Using the following forms, calculate the net
Calculate a schedule using least-total-cost lot sizing.What are the savings with this new schedule?
Term used for a computer system that integrates application programs for the different functions in a fi rm.
Logic used to calculate the needed parts, components, and other materials needed to produce an end item.
This drives the MRP calculations and is a detailed plan for how we expect to meet demand.
Period of time during which a customer has a specifi ed level of opportunity to make changes.
This identifi es the specifi c materials used to make each item and the correct quantities of each.
If an item is used in two places in a bill of material, say level 3 and level 4, what low-level code would be assigned to the item?
One unit of Part C is used in item A and in item B.Currently, we have 10 A’s, 20 B’s, and 100 C’s in inventory. We want to ship 60 A’s and 70 B’s. How many additional C’s do we need to
These are orders that have already been released and are to arrive in the future.
This is the total amount required for a particular item.
This is the amount needed after considering what we currently have in inventory and what we expect to arrive in the future.
The planned order receipt and planned order release are offset by this amount of time.
These are the part quantities issued in the planned order release section of an MRP report.
Ordering exactly what is needed each period without regard to economic considerations.
None of the techniques for determining order quantity consider this important noneconomic factor that could make the order quantity infeasible.
What is the best mix of the Friday night specials to maximize Joe Bob’s revenue? 20 cheeseburgers, 60 sloppy joes, 65 tacos, and 55 bowls of chili.
If a supplier offered to provide a rush order of buns at $1.00 a bun is it worth the money?Yes, each additional bun brings in $1.38 so if they cost us $1 then we will net $0.38 per bun.However, this
A manufacturing fi rm has discontinued production of a certain unprofi table product line.Considerable excess production capacity was created as a result. Management is considering devoting this
You’ve just completed a pilot run of 10 units of a major product and found the processing time for each unit was as follows:UNIT NUMBER TIME (HOURS)1 23 45 67 89 10 970 640 420 380 320 250 220 207
Lazer Technologies Inc. (LTI) has produced a total of 20 high-power laser systems that could be used to destroy any approaching enemy missiles or aircraft. The 20 units have been produced, funded in
Describe the characteristics of service processes and how they differ from manufacturing processes.
Classify service processes.
Explain service blueprinting.
Understand waiting line (queuing) analysis.
Model some common waiting line situation and estimate server utilization, the length of a waiting line, and average customer wait time.
Take a visit to secondlife.com. Where do sales opportunities exist?
Place the following hospital activities/relationships on the service design matrix: physician/patient, nurse/patient, billing, medical records, lab tests, admissions, diagnostic tests (such as
What are the differences between high and low customer contact service (CCS) businesses, in general, for the dimensions listed below? (Example—Facility Layout: in a high CCS, the facility would be
The Bijou Theater in Hermosa Beach, California, shows vintage movies. Customers arrive at the theater line at the rate of 100 per hour. The ticket seller averages 30 seconds per customer, which
Cathy Livingston, bartender at the Los Gactos Racquet Club, can serve drinks at the rate of one every 50 seconds. During a hot evening recently, the bar was particularly busy and every 55 seconds
Calculate the probability of zero patients in the system(P0), probability of one patient (P1), and the probability of two or more patients simultaneously arriving during the night shift.
Using a criterion that if the probability is greater than 1 percent, a backup OR team should be employed, make a recommendation to hospital administration.
Service systems can be generally categorized according to this characteristic that relates to the customer.
A framework that relates to the customer service system encounter.
This is the key feature that distinguishes a service blueprint from a normal fl owchart.
This is done to make a system mistake proof.
The queuing models assume that customers are served in what order?
Consider two queuing systems identical except for the service time distribution. In the fi rst system the service time is random and distributed according to a Poisson distribution. The service time
What is the average utilization of the servers in a system that has three servers? On average, 15 customers arrive every 15 minutes. It takes a server exactly three minutes to wait on each customer.
What is the expected waiting time for the system described in question 6?
Firms that desire high service levels where customers have short wait times should target server utilization levels at no more than this percent.
If a fi rm increases its service capacity by 10 percent it would expect waiting times to be reduced by what percent? Assume customer arrivals and service times are random.
Understand total quality management.
Discuss how quality is measured and be aware of the different dimensions of quality.
Explain the defi ne, measure, analyze, improve, and control (DMAIC)quality improvement process.
Show how to calculate the capability of a process.
Describe how processes are monitored with control charts.
Understand acceptance sampling concepts.
Ten samples of 15 parts each were taken from an ongoing process to establish a p chart for control. The samples and the number of defectives in each are shown in the following table:SAMPLE n NUMBER
A shirt manufacturer buys cloth by the 100 yard roll from a supplier. For setting up a control chart to manage the irregularities (e.g., loose threads and tears) the following data was collected from
Resistors for electronic circuits are manufactured on a high-speed automated machine. The machine is set up to produce a large run of resistors of 1,000 ohms each.To set up the machine and to create
You are the newly appointed assistant administrator at a local hospital, and your fi rst project is to investigate the quality of the patient meals put out by the food-service department.You
The state and local police departments are trying to analyze crime rates so they can shift their patrols from decreasing-rate areas to areas where rates are increasing. The city and county have been
The following table contains the measurements of the key length dimension from a fuel injector. These samples of size fi ve were taken at one-hour intervals.Construct a three-sigma __ X -chart and R
Design specifi cations require that a key dimension on a product measure 100 10 units. A process being considered for producing this product has a standard deviation of four units.a. What can you say
Calculate the new process capability.c. What can you say about the process after the shift? Approximately what percentage of the items produced will be defective?
What are the causes of the quality problems on the Greasex line? Display your answer on a fi shbone diagram.
What general steps should Hank follow in setting up a continuous improvement program for the company?What problems will he have to overcome to make it work?
This refers to the inherent value of the product in the marketplace and is a strategic decision for the fi rm.
Relates to how well a product or service meets design specifi cations.
Relates to how the customer views quality dimensions of a product or service.
The series of international quality standards.
What is the enemy of good quality?
A Six-Sigma process that is running at the center of its control limits would expect this defect rate.
The standard quality improvement methodology developed by General Electric.
Variation that can be clearly identifi ed and possibly managed.
Variation inherent in the process itself.
If a process has a capability index of 1 and is running normally (centered on the mean), what percent of the units would one expect to be defective?
An alternative to viewing a item as simply good or bad due to it falling in or out of the tolerance range.
Quality characteristics that are classifi ed as either conforming or not conforming to specifi cation.
A quality characteristic that is actually measured, such as the weight of an item.
A quality chart suitable for when an item is either good or bad.
A quality chart suitable for when a number of blemishes are expected on each unit, such as a spool of yarn.
Useful for checking quality when we periodically purchase large quantities of an item and it would be very costly to check each unit individually.
A chart that depicts the manufacturer’s and consumer’s risk associated with a sampling plan.
Explain what project management is and why it is important.
Identify the different ways projects can be structured.
Describe how projects are organized into major subprojects.
Understand what a project milestone is.
Determine the “critical path” for a project.
Demonstrate how to “crash,” or reduce the length, of a project.
Your project to obtain charitable donations is now 30 days into a planned 40-day project.The project is divided into 3 activities. The fi rst activity is designed to solicit individual donations. It
We estimate that even though we should have (25兾30) 83% of this activity complete, it is actually only 50% complete. This part of the project was scheduled to bring in $150,000 in donations. The fi
A project to build a new bridge seems to be going very well since the project is well ahead of schedule and costs seem to be running very low. A major milestone has been reached where the fi rst two
The following activities are part of a project to be scheduled using CPM:ACTIVITY IMMEDIATE PREDECESSOR TIME (WEEKS)a. Draw the network.b. What is the critical path?c. How many weeks will it take to
Schedule the following activities using CPM:ACTIVITY IMMEDIATE PREDECESSOR TIME (WEEKS)a. Draw the network.b. What is the critical path?c. How many weeks will it take to complete the project?d. Which
The R&D department is planning to bid on a large project for the development of a new communication system for commercial planes. The accompanying table shows the activities, times, and sequences
The following represents a project that should be scheduled using CPM:ACTIVITY IMMEDIATE PREDECESSORS TIMES (DAYS)a. Draw the network.b. What is the critical path?c. What is the expected project
The following table represents a plan for a project:JOB NO. PREDECESSOR JOB(S)TIMES (DAYS)a. Construct the appropriate network diagram.b. Indicate the critical path.c. What is the expected completion
A construction project is broken down into the following 10 activities:ACTIVITY IMMEDIATE PREDECESSOR TIME (WEEKS)a. Draw the network diagram.b. Find the critical path.c. If activities 1 and 10
Here is a CPM network with activity times in weeks:G(3)E(4)B(5)A(7)F(8)C(6)D(6)a. Determine the critical path.b. How many weeks will the project take to complete?c. Suppose F could be shortened by
Here is a network with the activity times shown in days:G(5)F(4)E(2)D(5)C(4)B(3)A(7)a. Find the critical path.b. The following table shows the normal times and the crash times, along with the
Calculate the start and fi nish times for each activity and determine the minimum number of weeks for completing the project. Find the critical set of activities for the project.
A project structured where a self-contained team works full time on the project.
Specifi c events that upon completion mark important progress toward completing a project.
This defi nes the hierarchy of project tasks, subtasks, and work packages.
Pieces of work in a project that consume time to complete.
A chart that shows both the time and sequence for completing the activities in a project.
Activities that in sequence form the longest chain in a project.

Showing 100 - 200 of 527