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Architecting for Experiments
at Cookpad Global
Chris Trott
@Cookpad HQ Tokyo 2018-02-16
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Chris Trott
iOS @ Cookpad Global
@twocentstudios
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Cookpad Global is...
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Startup
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Established
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Requirements?
—Experiment with new features
—Support our existing features
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Experimenting
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Why experiment?
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How to experiment
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Prototyping tools
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Audiences for user testing
Squad · Company · In person ·
Region · Production
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Release tools
Staging servers · DeployGate ·
TestFlight · Staged releases ·
Feature flags
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DeployGate
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Product challenges of experimentation
—What do we want to learn?
—Choosing the right tool
—Choosing the right audience
—Constraints of release tools
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Technical challenges of experimentation
—Writing code fast
—Minimum level of quality
—Predicting change
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Architecting experimental
code
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What is architecture?
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Why architect?
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When to architect?
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Example feature
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When to architect?
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Architect to isolate change
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When is the most change
occurring?
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Early in product development lifecycle?
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Middle of product development lifecycle?
—System complexity
—Bugs
—Audience changes
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Late in product development lifecycle?
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Full example
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Other techniques
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Use composable tools
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Negotiate change
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What about experimenting on stable systems?
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Summary
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Thank you!
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