Question

The following jobs are waiting to be processed at Rick? Solano's machine center.? Solano's machine center...

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 all times based on initiating work on day 241.

(Job) (Date Job Received) (Due Date Duration (days))

BR-02 225 270 25

CX-01 230 320 35

DE-06 235 360 40

RG-05 231 310 30

SY-11 228 300 15

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):

The average tardiness? (job lateness) for the sequence developed using the EDD rule? =

The percentage utilization for the sequence developed using the EDD rule? =

The average completion time for the sequence developed using the EDD rule? =

The average number of jobs in the system for the sequence developed using the EDD rule? =

Homework Answers

Answer #1

The Earliest Due Date rule is used to minimize the maximum lateness of schedule. According to EDD rule, the jobs are sequenced from earliest to latest due date of job. The sequence of EDD is as follows:

1

2

3

4

5

6 = 5+4

7

8 = 7 - (240 day)

9 = Maximum (0, (6 – 8))

Sequence

Job

Date Received

Processing time

Work Begins

Flow Time

Job Due date

Starting from day 241

Job Lateness

(Tardiness)

pi

di

1

BR-02

225

25

0

0+25

= 25

270

270-240

= 30

=max(0, (25-30))

= max(0, -5)

= 0

2

SY-11

228

15

25

40

300

60

0

3

RG-05

231

30

40

70

310

70

0

4

CX-01

230

35

70

105

320

80

25

5

DE-06

235

40

105

145

360

120

25

145

385

50

Total Processing time = 145 days

Total flow time for 5 jobs = 385 days

Total tardiness = 50 days

Average tardiness = total tardiness/number of jobs in sequence = 50/5 = 10 days

Percentage Utilization = total processing time/total flow time x 100

Percentage Utilization = 145/385 x 100 = 37.66%

Average completion time = Total Flow time/number of jobs in sequence = 385/5 = 77 days

Average number of jobs in system = Sum of total flow time/Total processing time = 385/145 = 2.65

For EDD:

Average tardiness = 10 days

Percentage Utilization = 37.66%

Average completion time = 77 days

Average number of jobs in system = 2.65 jobs

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The following jobs are waiting to be processed at Rick? Solano's machine center.? Solano's machine center...
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 all times based on initiating work on day 241. (Job) (Date Job Received) (Due Date Duration...
The following jobs are waiting to be processed at Rick? Solano's machine center.? Solano's machine center...
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 all times based on initiating work on day 241. (Job) (Date Job Received) (Due Date Duration...
Five jobs are ready for processing at time zero through a workstation. The details of the...
Five jobs are ready for processing at time zero through a workstation. The details of the processing time and the due date of completion is provided in the following table. Job Processing Time (days) Due Date A 5 11 B 6 16 C 3 19 D 4 10 E 2 9 Using the earliest due date (EDD) rule, the average lateness for the five jobs is:
A Northern British Columbia lumberyard has four jobs on order, as shown in the following table....
A Northern British Columbia lumberyard has four jobs on order, as shown in the following table. Today is day 205 on the yard’s schedule. Job Due Date Remaining Time (Days) A 212 6 B 209 3 C 214 10 D 210 8 In what sequence would the jobs be ranked according to the following decision rules: a) FCFS b) SPT c) LPT d) EDD e) Critical ratio Which is best and why? Which has the minimum lateness?
Today is Nov. 16. The following jobs need to be scheduled on the same machine. Job...
Today is Nov. 16. The following jobs need to be scheduled on the same machine. Job A, Process time =14 days, and due date November 26 Job B, Process time= 11 days, and due date = November 25 Job C, Process time =7 days, and due date= December 14 Job D, Process time=6 days, and due date= November 29 Job E, Process time= 2 days, and due date= November 20 Schedule the jobs according to SPT. What are the average...
The owner/operator of the local franchise of Handyman, Inc. has 4 jobs to complete today, shown...
The owner/operator of the local franchise of Handyman, Inc. has 4 jobs to complete today, shown in the order in which they were received. Job Processing Time (hrs) Due (hrs from now) W 4 4 X 3 5 Y 2 2 Z 1 1 If he or she uses the earliest due date first priority rule to schedule these jobs, what will be the average tardiness?
You have the following information on four jobs. Today is the beginning of day 1, so...
You have the following information on four jobs. Today is the beginning of day 1, so you can assume that the Time needed = work remaining and Due (days) = time remaining. Job Time Needed (days) Due (days) P 8 8 Q 10 23 R 3 17 S 6 30 T 4 29 U 7 24 1. If you order these jobs by Shortest Process Time rule, the order will be: 2. If you order these jobs by Earliest Due...
Please answer the following Case analysis questions 1-How is New Balance performing compared to its primary...
Please answer the following Case analysis questions 1-How is New Balance performing compared to its primary rivals? How will the acquisition of Reebok by Adidas impact the structure of the athletic shoe industry? Is this likely to be favorable or unfavorable for New Balance? 2- What issues does New Balance management need to address? 3-What recommendations would you make to New Balance Management? What does New Balance need to do to continue to be successful? Should management continue to invest...
Delta airlines case study Global strategy. Describe the current global strategy and provide evidence about how...
Delta airlines case study Global strategy. Describe the current global strategy and provide evidence about how the firms resources incompetencies support the given pressures regarding costs and local responsiveness. Describe entry modes have they usually used, and whether they are appropriate for the given strategy. Any key issues in their global strategy? casestudy: Atlanta, June 17, 2014. Sea of Delta employees and their families swarmed between food trucks, amusement park booths, and entertainment venues that were scattered throughout what would...
Mattel Responds to Ethical Challenges Business Ethics This case was written by Debbie Thorne, John Fraedrich,...
Mattel Responds to Ethical Challenges Business Ethics This case was written by Debbie Thorne, John Fraedrich, O. C. Ferrell, and Jennifer Jackson, with the editorial assistance of Jennifer Sawayda. This case was developed for classroom discussion rather than to illustrate either effective or ineffective handling of an administrative, ethical, or legal discussion by management. All sources used for this case were obtained through publicly available material. Mattel, Inc. is a world leader in the design, manufacture, and marketing of family...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT