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Process Flow Diagram.
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a)
|Step |Duration (seconds) |Number of people processed in 1 hour (3600 |
| | |seconds) |
|Reception |30 |3600/30 = 120 |
|Drug allergy consultation |60 |3600/60 = 60 |
|Fill out form and sign waiver |45 |3600/45 = 80 |
|Administer vaccination |90 |3600/90 = 40 |
Less number of people are processed in the step “Administer vaccination”. So it is the bottleneck activity.
So the time for completion depends only on the activity “Administer vaccination”. So the number of people processed is calculated as 1hr/90 seconds = 3600seconds/90 seconds = 40 people.
(b)
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Since two volunteers are allocated for the step “Administer vaccination”, more number of people could be processed.
|Step |Duration (seconds) |No: of volunteers allotted |Number of people processed in 1 |
| | | |hour (3600 seconds) |
|Reception |30 |1 |3600/30 = 120 |
|Drug allergy consultation |60 |1 |3600/60 = 60 |
|Fill out form and sign waiver |45 |1 |3600/45 = 80 |
|Administer vaccination |90 |2 |3600/(90/2) = 80 |
Less number of people are processed in the step “Drug allergy consultation”. So it is the bottleneck activity.
So the time for completion depends only on the activity “Drug allergy consultation”. So the number of people processed is 60 people.
This arrangement increased the capacity of the system by increasing number of people processed in an hour from 40 to 60 people.
c) The best allocation using five volunteers is as given in (b), because in step (b) we optimized the bottle neck activity of “Administer vaccination”. The capacity of the improved system is 60 people per hour.
The process flow diagram is:
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