Operations Management: Processes and Supply Chains (12th Edition) (What's New in Operations Management)
12th Edition
ISBN: 9780134741062
Author: Lee J. Krajewski, Manoj K. Malhotra, Larry P. Ritzman
Publisher: PEARSON
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Chapter 2, Problem 32P
a.
Summary Introduction
Interpretation: a process chart for the activities.
Concept Introduction: A process chart is a graphical illustration of various operations aligned in a systematic order.
b.
Summary Introduction
To Explain: Ideas to improve the shaving process.
Concept Introduction: Process improvement is a practice of analyzing a problem and improving the existing process which increases performance.
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Before completing production, a product must passthrough three stages of production. On the average, a newproduct begins at stage 1 every 6 minutes. The average timeit takes to process the product at each stage is as follows:stage 1, 3 minutes; stage 2, 2 minutes; stage 3, 1 minute.After finishing at stage 3, the product is inspected (assumethis takes no time). Ten percent of the final products arefound to have a defective part and must return to stage 1 andgo through the entire system again. After completing stage3, 20% of the final products are found to be defective. Theymust return to stage 2 and pass through 2 and 3 again. Onthe average, how many jobs are in the system? Assume thatall interarrival times and service times are exponential andthat each stage consists of a single server.
Consider the case of Conrad's Cookie Company, where he and two of his friends (Jared and Jack) are working to make and sell cookies. They have just one oven and can bake up to two dozen cookies at a time. The oven can bake two dozen cookies simultaneously (of similar or different ingredients) or one dozen only. If one dozen is baking in the oven, baking time will not be any different from baking two dozen simultaneously. The sequence of baking steps and respective durations are below.
Mixing and Spooning (together)
3 mins/dozen
Loading
1 minutte/dozen.
Baking
8 mins. baking time for one or two dozens.
Cooling
6 minutes
Packing
5 mins/dozen cookies
Payment (to be done after packing only)
1 minute per order
If all orders are 4 dozen cookies,
a) What is the best way to assign Conrad and his friends to jobs in order to maximize capacity? Find highest theoretical capacity and bottleneck of the process.
b) Once system warms up, is the capacity the same…
Consider the case of Conrad's Cookie Company, where he and two of his friends (Jared and Jack) are working to make and sell cookies. They have just one oven and can bake up to two dozen cookies at a time. The oven can bake two dozen cookies simultaneously (of similar or different ingredients) or one dozen only. If one dozen is baking in the oven, baking time will not be any different from baking two dozen simultaneously. The sequence of baking steps and respective durations are below.
Mixing and Spooning (together)
3 minutes of labor time per dozen
Loading
1 minutes per dozen.
Baking
8 minutes of baking time for one or two.
Cooling
6 minutes;
Packing
5 minutes of labor time per dozen cookies
Payment (to be done after packing only)
1 minutes of labor time per order
If all orders are 4 dozen cookies,
a) What is the best way to assign Conrad and his friends to jobs in order to maximize capacity? Find highest theoretical capacity and bottleneck…
Chapter 2 Solutions
Operations Management: Processes and Supply Chains (12th Edition) (What's New in Operations Management)
Ch. 2 - Prob. 3DQCh. 2 - Prob. 4DQCh. 2 - Consider the range of processes in the financial...Ch. 2 - Prob. 6DQCh. 2 - Continuous improvement recognizes that many small...Ch. 2 - Prob. 8DQCh. 2 - Paul O’Neill, former U.S. Treasury Secretary,...Ch. 2 - Dr. Gulakowicz is an orthodontist. She estimates...Ch. 2 - Two different manufacturing processes are being...Ch. 2 - The operations manager at Sebago Manufacturing is...
Ch. 2 - Consider the Custom Molds, Inc., case at the end...Ch. 2 - Founded in 1970, ABC is one of the world’s...Ch. 2 - Prepare a flowchart of the field service division...Ch. 2 - Big Bob’s Burger Barn would like to graphically...Ch. 2 - Prob. 10PCh. 2 - Suppose you are in charge of a large mailing to...Ch. 2 - Diagrams of two self-service gasoline stations,...Ch. 2 - Prob. 13PCh. 2 - Prob. 14PCh. 2 - A time study of an employee assembling peanut...Ch. 2 - Prob. 18PCh. 2 - Prob. 19PCh. 2 - Prob. 20PCh. 2 - Prob. 21PCh. 2 - Prob. 22PCh. 2 - Prob. 23PCh. 2 - Smith, Schroeder, and Torn (SST) is a short-haul...Ch. 2 - Prob. 25PCh. 2 - Prob. 26PCh. 2 - Prob. 27PCh. 2 - Prob. 28PCh. 2 - Prob. 29PCh. 2 - Prob. 30PCh. 2 - Prob. 31PCh. 2 - Prob. 32PCh. 2 - Prob. 33PCh. 2 - Prob. 1AMECh. 2 - What percentage of overall complaints do the three...Ch. 2 - Prob. 3AMECh. 2 - Prob. 1VCCh. 2 - What are the benefits that the POI program can...Ch. 2 - Prob. 3VCCh. 2 - What are the major issues facing Tom and Mason...Ch. 2 - Prob. 1.2CCh. 2 - Prob. 1.3CCh. 2 - Prob. 2.1CCh. 2 - Prob. 2.2CCh. 2 - Prob. 2.3C
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