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Explain with examples (3) of the product and service design considerations/factors.

Question 1:
Explain with examples (3) of the product and service design considerations/factors.
Question 2:
In details Explain the dimensions of product quality.
Question 3:
A female tailor buys fabric in 100-meter rolls. She uses 125 rolls per year to fabricate coloured Abayyas. The ordering cost is 20 SR per order and the annual carrying cost is 2 SR per roll.
What is the Economic Order Quantity (EOQ) for this business?
How many orders the tailor needs to make every year to run her business?
What is the length of each order cycle in days if she works 200 days only?
Compute the total cost of ordering and carrying the fabric rolls.
Question 4:
A small software development project has nine major activities.  The times are estimated and provided in the table below. 
Activity Immediate
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Predecessor Optimistic Most Likely Pessimistic
A - 4 6 8
B - 4 10 16
C A 2 4 18
D A 10 10 10
E B, C 12 14 16
F B 28 28 28
G D, E 2 10 18
H G, F 2 8 16
What is the project completion time?
What is the critical activities?
What is the probability that the project will be completed in 54weeks?
What is the probability that the project will be completed in 45 weeks?
Question 5:
Based on the table below.   Answer the following question
Act Pred. Normal Time (weeks) Crash Time (weeks) Normal Cost $ Crash Cost $
A - 3 3 300 300
B - 2 2 200 200
C A,B 4 2 200 400
D C 3 1 100 400
E B 2 1 150 300
F D,E 2 1 50 100
What is the project completion date?
Find the SLACK & crash cost per day for each activity.
If you wish to reduce the time required to complete this project by 3 weeks, which activity should be crashed? And find the new total cost of completing the project (after crashing).
Question 6:
Develop a solution for the following project problem.
Act. Pred. Normal Time (expected time) (Days) Normal Cost Crash Time
(Days) Crash Cost (total) Variance
σ^2
A - 35 $2500 20 $4000 7
B A 15 $1000 10 $1750 3
C A 30 $2500 20 $4500 4
D C 15 $1000 5 $2500 6
E B 10 $1500 5 $2750 2
Draw the project network with normal time. (2 Points)
What is the project completion time? (2 Point)
What is the probability that the project will be completed in 90 days? (2 Points).
The customer wants to complete the project in 65 days, what should we do (which activity should be crashed)? What will be the new total cost of completing the project (after crashing).

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