The EDD (early due date) scheduling in a single machine schedule results in ____
ID: 379942 • Letter: T
Question
The EDD (early due date) scheduling in a single machine schedule results in ____________________________ .
completion of all jobs by their respective due dates.
minimum average lateness of jobs.
scheduling of the longest job first.
minimum average flowtime.
no specific advantage.
QUESTION 9
When purchases are made in higher quantity than normal to take advantage of quantity discounts, the _________________________________________ .
ordering costs increase and inventory carrying costs increase
ordering costs increase and inventory carrying costs decrease
ordering costs decrease and inventory carrying costs increase
ordering costs decrease and inventory carrying costs decrease
overall costs decrease
a.completion of all jobs by their respective due dates.
b.minimum average lateness of jobs.
c.scheduling of the longest job first.
d.minimum average flowtime.
e.no specific advantage.
Explanation / Answer
Solution :
1. The EDD (early due date) scheduling in a single machine schedule results in no specific advantage.
Option 1 : completion of all jobs by their respective due dates - No scheduling rule guarantees it.
Option 2 : minimum average lateness of jobs. - SOT gives better result.
Option 3 : scheduling of the longest job first. - LPT gives this result
Option 4 : minimum average flowtime. - SPT gives minimum average flowtime
2. When purchases are made in higher quantity than normal to take advantage of quantity discounts, the ordering costs decrease and inventory carrying costs increase
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