Homework Answers
Shortest Process Time(SPT)
In the Shortest Process Time (SPT) rule, jobs are arranged in the ascending order of their process time. This rule helps to minimize the average work-in-process inventory.
In the First Come First Served (FCFS) rule, jobs are arranged in the order of their receipt or arrival. This rule does not minimize the average work-in-process inventory.
In the Critical Ratio(CR) rule, jobs are arranged in the ascending order of their critical ratio. (Critical ratio = Time left before due date / Total lead time remaining). This rule does not minimize the average work-in-process inventory.
In the Earliest Due Date(EDD) rule, the job with the earliest due date is placed first in the sequence. This rule helps to minimize the average lateness of jobs.
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In sequencing jobs through a single work center, the goal is to mindere were work in...
ABC Enterprises has five jobs that must be scheduled for production at a work center. Below...
ABC Enterprises has five jobs that must be scheduled for production at a work center. Below are the processing times and due dates for each job. Job Processing Time (in days) Due Date (days from today) 1 7 14 2 5 21 3 3 10 4 2 7 5 6 9 Schedule the jobs by sequencing them using the Earliest Due Date (EDD) priority rule. What is the average flow time? Show your Work and round your...
a) Using the EDD (earliest due date) decision rule for sequencing the jobs, the order is...
a) Using the EDD (earliest due date) decision rule for sequencing the jobs, the order is (to resolve a tie, use the order in which the jobs were received): At Morgan's Transformer Rebuilding, following jobs (below) are ready for dispatching to a work center. The processing times, date job received, and due dates for the jobs are given below. In what sequence would the jobs be ranked according to the decision rules on the left Sequence Job 1 Date Job...
a) Using the EDD (earliest due date) decision rule for sequencing the jobs, the order is...
a) Using the EDD (earliest due date) decision rule for sequencing the jobs, the order is (to resolve a tie, use the order in which the jobs were received): At Morgan's Transformer Rebuilding, following jobs (below) are ready for dispatching to a work center. The processing times, date job received, and due dates for the jobs are given below. In what sequence would the jobs be ranked according to the decision rules on the left Sequence Job 1 Date Job...
The following table contains information concerning four jobs that are awaiting processing at a work center....
The following table contains information concerning four jobs that are awaiting processing at a work center. Job Job Time (Days) Due Date (Days) A 14 20 B 10 16 C 7 15 D 6 17 a. Sequence the jobs using (1) First come, first served, (2) Shortest processing time, (3) Earliest due date, and (4) Critical ratio. Assume the list is by order of arrival. Sequence for First come, first served (Click to select) A-B-C-D D-C-B-A C-B-D-A A-C-D-B Sequence for Shortest processing time (Click...
a) Using the SPT (shortest processing time) decision rule for sequencing the jobs, the order is...
a) Using the SPT (shortest processing time) decision rule for sequencing the jobs, the order is (to resolve a tie, use the order in which the jobs were received): Sequence Job 1 ▼ N L M K O 2 ▼ K O L M N 3 ▼ K N L O M 4 ▼ N L M O K 5 ▼ N O K M L The total flow time for the sequence developed using the SPT rule = nothing...
Using the FCFS (first come, first served) decision rule for sequencing the jobs, the order is:...
Using the FCFS (first come, first served) decision rule for sequencing the jobs, the order is: The following jobs are waiting to be processed at Rick Solano's machine center. Solano's machine center has a relatively long backlog and sets a fresh schedule every 2 weeks, which does not disturb earlier schedules. Below are the jobs to be scheduled today, which is day 241 (day 241 is a work day). Job names refer to names of clients and contract numbers. Compute...
Problem 2 (6 points): Refer to the following data for jobs waiting to be processed at...
Problem 2 (6 points): Refer to the following data for jobs waiting to be processed at a single work center (jobs are shown in order of arrival): Job Processing Time (Days) Due Date (days from Now) A 2 2 B 5 6 C 6 10 D 9 6 E 4 8 What is the average flow time for the shortest processing time (SPT) rule schedule?
a) Using the FCFS (first come, first served ) decision rule for sequencing the jobs, the...
a) Using the FCFS (first come, first
served ) decision rule for sequencing the jobs, the order is
(assume that jobs came in the order in which they are listed in
the table):
Sequence
Job
1
A
2
B
3
C
4
D
5
E
The average tardiness (job lateness) for the sequence developed
using the FCFS rule = ___ days (round your response to two
decimal places).
The following jobs are waiting to be processed at the same
machine...
a) Using the FCFS (first come, first served) decision e for sequencing the jobs, the order...
a) Using the FCFS (first come, first served) decision e for sequencing the jobs, the order is t Richard's Machine Shop, following jobs (below) are ready for dispatching to a work center. The processing times, date job recuived, and due dales for the jobs a ranked according lo the decision rukes given below whal sequence would the jobs b Sequence Job Date Job Processing (days) Job Received D 105 122 195 20 180 120 205 25 I times d daysloday...
The following table contains information regarding jobs that are to be scheduled through one machine. Assume...
The following table contains information regarding jobs that are to be scheduled through one machine. Assume jobs are listed in order of arrival (i.e., A, then B, then C, etc.). JOB PROCESSING TIME (DAYS) DUE DATE A 7 20 B 15 21 C 1 16 D 12 17 E 11 15 F 4 6 G 5 12 Round your answers to 1 decimal place. a. What is the first-come, first-served (FCFS) schedule? b. What is the shortest operating time...
a) Using the EDD (earliest due date) decision rule for sequencing the jobs, the order is (to resolve a tie, use the order in which the jobs were received): At Morgan's Transformer Rebuilding, following jobs (below) are ready for dispatching to a work center. The processing times, date job received, and due dates for the jobs are given below. In what sequence would the jobs be ranked according to the decision rules on the left Sequence Job 1 Date Job...
a) Using the EDD (earliest due date) decision rule for sequencing the jobs, the order is (to resolve a tie, use the order in which the jobs were received): At Morgan's Transformer Rebuilding, following jobs (below) are ready for dispatching to a work center. The processing times, date job received, and due dates for the jobs are given below. In what sequence would the jobs be ranked according to the decision rules on the left Sequence Job 1 Date Job...
Using the FCFS (first come, first served) decision rule for sequencing the jobs, the order is: The following jobs are waiting to be processed at Rick Solano's machine center. Solano's machine center has a relatively long backlog and sets a fresh schedule every 2 weeks, which does not disturb earlier schedules. Below are the jobs to be scheduled today, which is day 241 (day 241 is a work day). Job names refer to names of clients and contract numbers. Compute...
a) Using the FCFS (first come, first
served ) decision rule for sequencing the jobs, the order is
(assume that jobs came in the order in which they are listed in
the table):
Sequence
Job
1
A
2
B
3
C
4
D
5
E
The average tardiness (job lateness) for the sequence developed
using the FCFS rule = ___ days (round your response to two
decimal places).
The following jobs are waiting to be processed at the same
machine...
a) Using the FCFS (first come, first served) decision e for sequencing the jobs, the order is t Richard's Machine Shop, following jobs (below) are ready for dispatching to a work center. The processing times, date job recuived, and due dales for the jobs a ranked according lo the decision rukes given below whal sequence would the jobs b Sequence Job Date Job Processing (days) Job Received D 105 122 195 20 180 120 205 25 I times d daysloday...
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