when you are agile you get lean how agile reduces waste in software develpment
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When you are Agile you get Lean
How Agile reduces waste in software develpment
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Value stream
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The seven lean wastes
12
345
6
7
Over-production
Work in process
Waiting
Motion
Transportation
Rework, defects
Over-processing
Lean Waste
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Over-production
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Over-production in software
Unused features
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Dynamic requirements backlog
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Work in process
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Software work in process
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Early & frequent release
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Iterative development
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Waiting
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Waiting in software development
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Pair programming
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Motion
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Motion in software
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Single team assignment
• 100% dedicated to one project
• Protect team from interruptions
• Team organizes their own work
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Transportation
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Transportation in software
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• User stories • Co-location• Business collaboration • Small team size• Cross-functional teams
Transportation in software
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Defects or rework
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Software defects
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Defects in software (Barry Boehm)
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• Don’t break the build • Test-driven development • Definition of done
Never defer fixing a defect
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Over-processing
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• Gold-plated documentation• Duplicative approvals• Design reviews that don’t result in
improvements• Overly-precise estimates
Over-processing in software
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Just in time work realization
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Three lean principles
• Deploy as soon as possible – Never defer a fix
• Defer decisions to the last responsible moment– Do just enough and no more
• Unleash team power – Don’t underutilize creative brain power – The team is the unit of production
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