S1E02 The problems at full capacity utilisation
- Christian Nilaus
Owned by Christian Nilaus
Introduction
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"if everyone is busy we must be productive"
"if someone is idle there must be spare capacity to be utilised"
Traffic congestion theory
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0 | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 | 110 | 120 | 130 | 140 | 150 | 160 | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Free flow | 0 | 100 | 200 | 300 | 400 | 500 | |||||||||||
Syncronized flow | 500 | 580 | 640 | 680 | 700 | 700 | 700 | ||||||||||
Jam | 700 | 680 | 640 | 580 | 500 | 400 |
Resource allocation
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Simple allocation
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Complex allocation
Conditions:
- Size is correct
- No variation
Estimation
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Normal Distribution
Gamma distribution
Variability
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Now what?
Organisational response
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Familiar buzz words gets thrown around:
- Prioritisation
- Expediting
- Reallocation
- Task switching
- Management focus
"adding human resources to a late software project makes it later" - Brook's Law
What to do
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- Communicate risk early
- Build slack into the plan
- Realise that changing adds overhead
Reading recommendation
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Outro
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