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make it reversible
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reversible code
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Software was a physical product.
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write code
quality assurance
physically manufacture
ship to customers
> yearlythe pastCONTEXT RELEASE CYCLE
irreversible
irreversible
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Old habits die hard.
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write code
quality assurance
ship to customers
weekly–quarterlystatus quo*CONTEXT RELEASE CYCLE
irreversible
* New Relic 2016 data culture survey: 70% of 500 surveyed companies ship weekly or less
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new code on GitHub
automated tests
Muster deployment system
served to customers
minutesIntercom
revert
CONTEXT RELEASE CYCLE
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Intercom: releases per dayCONTEXT
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Always be right
status quoCONTEXT
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Always be rightBe mostly right,
but be able to correctmistakes really fast
IntercomCONTEXT
Puppet/PWC 2015 State of Devops report: companies which ship 30x more often, experience 60x fewer failures, recover from failure 160x more quickly, 200x shorter lead times. 20,000 respondents.
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reversible product
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1. What should we build?
2. How do we build it?
2 Questions our process should answer…
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1. What should we build?
mission
strategy
problemproblem
problem
solutionsolution
solution
solution
solution
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strategy & problems
come up with solution
ship to customers
Growth team, pastCONTEXT
irreversible
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strategy & problems
ship to customers
Growth teams, recentlyCONTEXT
come up with solution
irreversible
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strategy
problems
Growth teams, nowCONTEXT
come up with solution
ship to customers
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irreversible
irreversible
irreversible
concept
design
systems
UI
2. How do we build it?
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irreversible
irreversible
irreversible
concept
design
systems
UI
Scope a complete, holistic slice
concept
design
systems
UI
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sometimes this is enough
irreversible irreversible
always learn something from it
How to make a wedding cake?
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make it reversible
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Choose to break the rule.
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Thanks!@steobrien