Concept explainers
a)
To determine: Thesequence of jobs based on the decision rule, i.e, First Come First Served (FCFS).
Introduction: The First Come First Served is the
b)
To determine: The sequence of jobs based on the decision rule, i.e, Earliest Due Date (EDD).
Introduction: The Earliest Due Date is the scheduling rule, which helps to arrange the sequence in the order. Here, the job with the earliest due date would be served first. Then, the process would be go on from the earliest due date to the latest due date.
c)
To determine: The sequence of jobs based on the decision rule, i.e, Shortest Processing Time (SPT).
Introduction: The Shortest Processing Time is the scheduling rule, which helps to arrange the sequence in the order. Here, the job with the shortest duration is served first. Then, the process would be go on from the shortest to the largest duration.
d)
To determine: The sequence of jobs based on the decision rule, i.e, Longest Processing Time (LPT).
Introduction: The Largest Processing Tine is the scheduling rule, which helps to arrange the sequence in the order. Here, the job with the largest duration is served first. Then, the process would go on from the largest to the shortest duration.
Want to see the full answer?
Check out a sample textbook solutionChapter 15 Solutions
EBK OPERATIONS MGMT.
- Question 33 The processing times of five jobs are given as follows: Job Processing time (minutes) A 20 B 60 C 30 D 75 E 15 Assume the jobs arrived in alphabetical order of the job name and no other job arrives in the next 200 minutes. What is the average inventory if the jobs are processed in shortest processing time (SPT) order? Group of answer choices 3.00 2.92 1.97 2.20arrow_forwardQuestion 4: Six jobs waiting at a workstation will be processed in order, starting with the one with the shortest break time. In the table below, the time elapsed since the arrival of the works, the time remaining to the delivery and the processing time are given. According to this, create the work order and fill in the data in the relevant table.(fill in the second table in the photos)a) What is the average delay time with the generated order?b) How many hours is the average flow time?c) How many jobs will be delayed?d) How many jobs will not be delayed?arrow_forwardQuestion 1) Scheduling If the following jobs are sequenced according to the FCFS rule Job Processing Time (days) Due Date A 8 12 B 6 15 C 11 17 D 5 10 E 3 8 What is the mean tardiness (in days) for all jobs? What is the mean completion time in days for all jobs? What is the maximum job tardiness (in days)arrow_forward
- QUESTION 5a. A Chef bakes and decorates cakes in a two-stage process. The cakes are baked and once cooledthey are then decorated based on the clients’ requirements. The Chef received seven orders forfully decorated cakes and has documented the orders with respective processing times for bakingand decorating, as shown in Table 7 that follows:.Table 7. Cake Job Orders received by the Chef with the respective processing times for Baking andDecoratingCake Job Order Baking Processing Time Decorating Processing TimeA 2 1B 8 5C 4 6D 9 7E 7 8F 9 6G 3 5 (ii) Illustrate the flow (throughput) times to complete the baking and decorating on atimeline chart.arrow_forwardQUESTION 5a. A Chef bakes and decorates cakes in a two-stage process. The cakes are baked and once cooledthey are then decorated based on the clients’ requirements. The Chef received seven orders forfully decorated cakes and has documented the orders with respective processing times for bakingand decorating, as shown in Table 7 that follows:.Table 7. Cake Job Orders received by the Chef with the respective processing times for Baking andDecoratingCake Job Order Baking Processing Time Decorating Processing TimeA 2 1B 8 5C 4 6D 9 7E 7 8F 9 6G 3 5 (i) Using Johnson’s Rule, determine the optimum sequence for processing the cake joborders through the baking and decorating stages.arrow_forwardQuestion fourThree jobs are to be scheduled on two machines A and B. Assume that the jobs are processed in the sequence A-B (A has to finish the job before B can continue the job). The processing times are: Job A B1 5 42 7 73 3 5Draw a Gantt chart that shows the schedule corresponding to the sequence 1-2-3 of the jobs.arrow_forward
- Question Three Processing times (including setup times), and due dates for five jobs waiting to be processed at a work center are given in the following table. By Using the SPT rule determine the following: The sequence of jobs The average flow time The average job tardiness The average number of jobs at the work center Job Processing Time (hours) Hour Due A 17 15 B 10 25 C 5 20 D 7 32 E 11 38arrow_forwardQuestion Scenario: Early one Monday morning in Jamaica, Susan, a Restaurant Manager starts getting ready for the morning’s work operations. She is particularly happy because tonight he has a date with Marvin, the new Chef that was recently hired. The problem, as Susan sees it, is that Roberta, another Restaurant employee has been just a little too friendly with Marvin lately and that really upsets Susan. Susan has redone the work schedule, assigning Roberta the clean-up shift in the night and cutting back on her hours of work. She is hoping that Roberta would simply quit and out of her way. However, that plan doesn’t seem to be working. Despite a lighter pay cheque and frequent reprimand through the disciplinary process of creating reasons to write to her about her conduct and performance. Roberta has decided to quit her studies due to her inability to fund her tuition. A few days later, Susan noticed Marvin and Roberta having lunch together in the staff dining room. Susan got furious…arrow_forwardQuestion 32 The processing times of four jobs are given as follows: Job Processing time (minutes) A 10 B 30 C 16 D 24 Assume the jobs arrived in alphabetical order of the job name and no other job arrives in the next 70 minutes. What is the average flow time in minutes if the jobs are processed in shortest processing time (SOP) order? Group of answer choices 166 41.5 38 20.5arrow_forward
- Question:-M Full explain this question and text typing work only.arrow_forwardQ. 3 What is the total makespan from Question 1? Question 1: Four floral arranging jobs are to be carried out across three stations: A (Arrange), B (Bag), C (crop) shown. The station sequences and job times in minutes are shown below, along with the due dates for each job. Using an "earliest due date" job dispatching priority rule, which, if any, of the jobs in will be late? Answer was Job 4 Group of answer choices a. 100 b. 130 c. 150 d. 170 e. 200arrow_forwardQuestion1: Discuss the critical importance of work schedule in project management.2. Discuss the contribution of cost estimation in the completion of successful project.3. A firm is planning a project which consists of the following ten jobs and precedence relations are identified with their node numbers: Jobs (i-j) 1-2 1-3 2-3 2-4 2-5 3-5 4-7 5-6 6-7 7-8 Durations (days) 9 5 12 7 8 11 10 3 4 6 Draw an arrow diagram representing the project.b. Determine the critical pathc. What is the duration of the project?arrow_forward
- Practical Management ScienceOperations ManagementISBN:9781337406659Author:WINSTON, Wayne L.Publisher:Cengage,Operations ManagementOperations ManagementISBN:9781259667473Author:William J StevensonPublisher:McGraw-Hill EducationOperations and Supply Chain Management (Mcgraw-hi...Operations ManagementISBN:9781259666100Author:F. Robert Jacobs, Richard B ChasePublisher:McGraw-Hill Education
- Purchasing and Supply Chain ManagementOperations ManagementISBN:9781285869681Author:Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. PattersonPublisher:Cengage LearningProduction and Operations Analysis, Seventh Editi...Operations ManagementISBN:9781478623069Author:Steven Nahmias, Tava Lennon OlsenPublisher:Waveland Press, Inc.