Question
In: Operations Management
The following jobs are waiting to be processed at the same machine center. Jobs are logged...
- The following jobs are waiting to be processed at the same machine center. Jobs are logged as they arrive:
|
A |
313 |
8 |
|
B |
312 |
16 |
|
C |
325 |
40 |
|
D |
314 |
5 |
|
E |
314 |
3 |
In what sequence would the jobs be ranked according to the following decision rules: (a) FCFS, (b) EDD, (c) SPT, and (d) LPT? Which decision is best and why?
All dates are specified as manufacturing planning calendar days. Assume that all jobs arrive on day 275.
Solutions
keosha answered 1 year agoRelated Solutions
The following jobs are waiting to be processed at the same machine center. Jobs are logged...
The following jobs are waiting to be processed at the same
machine center. Jobs are logged as they arrive:
Job Date Received Due Date
Duration (days)
A
275
312
16
B
275
325
40
C 275
314
5
D
275
315
3
E
275
313
8
All dates are specified as manufacturing planning calendar days.
Assume that all jobs arrive on day 275. Assume each...
The following jobs are waiting to be processed at the same machine center. Jobs are logged...
The following jobs are waiting to be processed at the same
machine center. Jobs are logged as they arrive:
Job
Due Date
Duration (days)
A
315
3
B
313
8
C
312
16
D
325
40
E
314
5
All dates are specified as manufacturing planning calendar days.
Assume that all jobs arrive on day 275.
Assume each job starts at the beginning of the day and finishes
at the end of the day (a job that begins on...
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)...
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 Jeremy LaMontagne's machine center. Today is day...
The following jobs are waiting to be processed at Jeremy
LaMontagne's machine center. Today is day 240.
Job
Date job received
Due date
Duration (days)
1
210
270
25
2
215
280
35
3
220
295
45
4
235
315
40
5
240
340
15
Calculate the Critical Ratios (CR): (Enter all responses
rounded to two decimal places.)
JOB CR
1 ?
2 ?
3 ?
4 ?
5 ?
Using the Critical Ratio (CR) scheduling rule for sequencing the...
The table below contains information about five jobs waiting to be processed at work center. Job...
The table below contains information about five jobs waiting to
be processed at work center.
Job
Processing
Time (Days.)
Days Until
Due
a
14
15
b
10
20
c
18
18
d
2
16
e
4
21
a. The sequence that would result using the FCFS rule is:
e-b-c-d-a
c-a-b-e-d
a-b-c-d-e
d-e-b-a-c
e-d-b-a-c
b. The sequence that would result using the SPT
rule is:
e-b-c-d-a
c-a-b-e-d
a-d-c-e-b
d-e-b-a-c
e-d-b-a-c
c. The average flow time (completion time) using the...
Evan Schwartz has six jobs waiting to be processed through his machine. Processing time (in days)...
Evan Schwartz has six jobs waiting to be processed through his
machine. Processing time (in days) and due date information for
each job are as follows:
Job
Processing Time
Due Date
A
B
C
D
E
F
2
1
5
3
4
7
3
2
12
4
8
11
Sequence the jobs by FCFS, SPT, SLACK, and DDATE. Calculate the
mean flow time and mean tardiness of the six jobs under each
sequencing rule. Which rule would you recommend?
The following set of seven jobs is to be processed through two work centers at George?...
The following set of seven jobs is to be processed through two
work centers at George? Heinrich's printing company. The sequence
is first? printing, then binding. Processing time at each of the
work centers is shown in the following? table:
Job Printing (hours) Binding(hours)
T 12 4
U 8 11
V 5 14
W 6 2
X 9 10
Y 3 1
Z 7 13
a-b) Using? Johnson's rule for? 2-machine scheduling, the
sequence? is:
Scheduled Order
Job
1.____
2....
Which of the following will increase the waiting time in a call center in which the...
Which of the following will increase the waiting time
in a call center in which the incoming call gets assigned to the
first available server?
A. Add more servers
B. Implement the shortest processing time first priority
rule
C. Decrease the variability in servers
D. Increase the average service/processing time
E. Decrease the interarrival time
Both C and D
Both D and E
C, D, and E
Q4 (a) A manufacturer has the following jobs waiting on a single work centre. The firm...
Q4
(a) A manufacturer has the following jobs waiting on a
single work centre. The firm has not decided which dispatching rule
to apply in order to prioritize the jobs and fix them into the
schedule. Processing time and due date for each job are in the
Table 4 below. Recommend the best job sequence to the manufacturer
using THREE (3) dispatching rules scenario analysis.
Table 4: Jobs
Information
Jobs
Information
Processing
Time (days)
Due Date
(days)
Job 1
3.25...
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