Operations Management
11th Edition
ISBN: 9780132921145
Author: Jay Heizer
Publisher: PEARSON
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Chapter 9, Problem 9P
Six processes are to be laid out in six areas along a long corridor at Rita Gibson Accounting Services in Daytona Beach. The distance between adjacent work centers is 40 feet. The number of trips between work centers is given in the following table:
- a. Assign the processes to the work areas in a way that minimizes the total flow, using a method that places processes with highest flow adjacent to each other.
- b. What assignment minimizes the total traffic flow?
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Assign the 4 departments in Table X to locations A, B, C, and D, which are separated by the distances shown in Table y, in such a way that transportation cost is minimized. Use this heuristic: assign departments with the greatest interdepartmental workflow first.
See attached tables.
Evan Schwartz has six jobs waiting to be processedthrough his machine. Processing time (in days) and duedate information for each job are as follows:Sequence the jobs by FCFS, SPT, SLACK, and DDATE.Calculate the mean flow time and mean tardiness of the sixjobs under each sequencing rule. Which rule would yourecommend?
Compare the differences between flow classification and flow scheduling?
Chapter 9 Solutions
Operations Management
Ch. 9 - Prob. 1DQCh. 9 - Prob. 2DQCh. 9 - Prob. 3DQCh. 9 - Prob. 4DQCh. 9 - Prob. 5DQCh. 9 - Prob. 6DQCh. 9 - Prob. 7DQCh. 9 - Prob. 8DQCh. 9 - What are the requirements for a focused work...Ch. 9 - Prob. 10DQ
Ch. 9 - Prob. 11DQCh. 9 - Prob. 12DQCh. 9 - Prob. 13DQCh. 9 - Prob. 14DQCh. 9 - Prob. 15DQCh. 9 - Prob. 16DQCh. 9 - Explain the concept of cross-docking.Ch. 9 - What is a heuristic? Name several that can be used...Ch. 9 - Prob. 1PCh. 9 - Prob. 2PCh. 9 - Three departmentsmilling (M), drilling (D), and...Ch. 9 - Roy Creasey Enterprises, a machine shop, is...Ch. 9 - Prob. 5PCh. 9 - Prob. 6PCh. 9 - Prob. 7PCh. 9 - Prob. 8PCh. 9 - Six processes are to be laid out in six areas...Ch. 9 - After an extensive product analysis using group...Ch. 9 - Stanford Rosenberg Computing wants to establish an...Ch. 9 - Illinois Furniture, Inc., produces all types of...Ch. 9 - Sue Helms Appliances wants to establish an...Ch. 9 - The Action Toy Company has decided to manufacture...Ch. 9 - The following table details the tasks required for...Ch. 9 - Tailwind, Inc., produces high-quality but...Ch. 9 - Prob. 17PCh. 9 - Because of the expected high demand for Mach 10,...Ch. 9 - Prob. 19PCh. 9 - Suppose production requirements in Solved Problem...Ch. 9 - The preinduction physical examination given by the...Ch. 9 - Samuel Smith's company wants to establish an...Ch. 9 - As the Cottrell Bicycle Co. of St. Louis completes...Ch. 9 - Prob. 1CSCh. 9 - Prob. 2CSCh. 9 - Prob. 3CSCh. 9 - Prob. 4CSCh. 9 - Prob. 1.1VCCh. 9 - Prob. 1.2VCCh. 9 - Prob. 1.3VCCh. 9 - Prob. 1.4VCCh. 9 - Prob. 1.5VCCh. 9 - Prob. 2.1VCCh. 9 - Prob. 2.2VCCh. 9 - Prob. 2.3VC
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- Twelve tasks, with times and precedence requirements as shown in the following table, are tobe assigned to workstations using a cycle time of 1.5 minutes. Two heuristic rules will be tried:(1) greatest positional weight, and (2) most following tasks.In each case, the tiebreaker will be shortest processing time. TaskLength(minutes)ImmediatePredecessora 0.1 —b 0.2 ac 0.9 bd 0.6 ce 0.1 —f 0.2 d, eg 0.4 fh 0.1 gi 0.2 hj 0.7 ik 0.3 jl 0.2 k a. Draw the precedence diagram for this line.b. Assign tasks to stations under each of the two rules.c. Compute the percentage of idle time for each rulearrow_forwardA service process is described by the above flowchart. After going through workstation A, an order needs to be processed by one of the three lines, B1-C1-D1, B2-C2-D2, or B3-C3-D3 (in other words, they are substitutable). Finally, all orders need to go through workstation E. The capacities of the individual workstations are given as follows: Workstation A has a capacity of 2 orders/hour Workstation B1, B2, and B3 have the same capacity of 3 orders/hour Workstation C1, C2, and C3 have the same capacity of 3 orders/hour Workstation D1, D2, and D3 have the same capacity of 3 orders/hour Workstation E has a capacity of 4 orders/hour What is capacity of the service process in orders/hour? Note: Please do not include the unit of measure. For example, if your answer is 10 orders/hour, enter 10.arrow_forwardGiven the following information, assign tasks to work stations using the most followers rule. Assume the cycle time is 60 seconds and the minimum number of workstations is 3. Submit for each workstation (1,2,3,4 etc.), the tasks assigned in order of assignment, the idle time for each work station and the total idle time. (It will help for you to make the diagram but you are not required to submit the diagram) Task A D w Immediate Predecessor D CE Task Time (seconds) 35 50 20 10 25 40arrow_forward
- MGT-314 (Operations Management) MCQ: 1. Tesla is launching a new model of their cars. It is known as the Tesla-model X. Their production facility in Chicago cannot fit the assembly line needed for making the new model. They bought robots, tools, and materials to expand the manufacturing facility. This assembly line is only going to make model-X's and no other models. Their layout is: a) Services Layout b) Product Layout c) Fixed Position Layout d) Process Layout 2. A country is only as strong as its citizens. Due to Bangladesh being a third world country, the crisis is everywhere. With a massive number of people believing in hard work for a minimum wage, these blue-collar employees are having the harshest time surviving this countrywide condition. They simply don't have the means to withstand this situation and that is where the government comes in to aid these people with essentials such as food and equipment (Tran) which will help them to stay afloat from this pandemic. While…arrow_forwardhomework - need helparrow_forwardA group of six jobs is to be processed through a two-machine flow shop. The first operation involves cleaning and the second involves painting. Determine a sequence that willminimize the total completion time for this group of jobs. Processing times are as follows:PROCESSING TIME (hours)Job Work Center 1 Work Center 2A 5 5B 4 3C 8 9D 2 7E 6 8F 12 15 To employ Johnson’s rule, create a “blank” sequence first, such as:mhhe.com/stevenson13eEXAMPLE 41st 2nd 3rd 4th 5th 6tharrow_forward
- Answer the following problems in Job Sequencing 1. There are five jobs, each of which must go through machines A, B and C in the order ABC. Processing time (in hours) are given below: Job 1 2 4 Machine A 10 11 8 7 6. Machine B 6 4 5 3 Machine C 9 6. 8 Determine the optimal processing sequence and . total elapsed time?arrow_forward9arrow_forwardEight jobs have arrived in the following order: Job Processing Time Due Date 1 25 11 12 9 2 3 4 5 6 7 8 9 5 11 st 4 10 7 16 6 18 16 Find and compare the performance measures for the following sequencing rules using the Excel Sequencing template. Round your answers to two decimal places. A. Process in the order they have arrived 24 42 Average Flow Time Lateness Tardiness Average B. Shortest processing time The SPT sequence is 4, 2, 8, 6, 1, 5, 3, 7 Flow Time Lateness Tardiness Average Earliest due date The EDD sequence is 4, 2, 3, 8, 5, 6, 1, 7 Flow Time Lateness Tardinessarrow_forward
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