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What can traffic inteach you about yourdevelopment process Håkan Forss - hakan.forss@avegagroup.se - @hakanforss
Little’s Law Work-in-Process Throughput Cycle Time =
8 cars / min 4 cars / min With less work-in-progress Shorter cycle time Or Higher throughput
TheoryofConstraints
5
Don’t allow inertia to cause a system constraint.
Capacity = 4 Capacity = 6 Capacity = 6 Throughput = 4 You can never go faster than your bottleneck No need for higher capacity after the bottleneck than at the bottleneck Higher capacity in front of the bottleneck will lower total throughput
Non-instantavailabilityresource A resource that is not available all the time
Non-instantavailabilityresource & bottleneck
You can never go faster than your bottleneck Balance demand against throughput to keep work-in-progress low Low work-in-progress Keeps cycle time down  Makes bottlenecks visible faster
Slow down to go faster  Slowing down can stabilize the process flow A stable process can go faster
Håkan Forss Mail: hakan.forss@avegagroup.se Twitter: @hakanforss Blog: http://hakanforss.wordpress.com/

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What can traffic in stockholm teach you about your development process

Editor's Notes

  1. There are two different types of bottlenecks: - Capacity contraint resource - a resource limited by capacity, like a bottle - non instantly available resource - a resource that is not available all the time