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• 100% test coverage
• Code-to-test 1:2 1:3
• Active Record associations, validations, or scopes.
• ( Unit Test )
• TDD (DHH 20% TDD)
• Model DB Fixtures
• Views system/browser testing
• 2015 ?
• Feature branch
• commit CI
• Code Review
• Release branch beta user (staging server)
• Happiness: Net Promoter Score (NPS)
• How likely are you to recommend us to a friend?
• 0-6 : Detractors
• 9-10: Promoter
• Engagement: CTR Active Users
• Retention: Churn rate
• Task Success: Proﬁle
• Event Data = Action + State + Time
• State User Device Item Record
Common Agile Practice Isn’t
• Common Agile Practice is for Delivery
• Most Startups are About Discovery
• Keep the spirit of Agile, and discount the dogma
7 Agile Best Practices that
You Don’t Need to Follow
• Pair Programming
• Emergent Design and Metaphor
• Daily Standups
• Collective Code Ownership
• Writing All Requirements as Stories
• Relying on a Product Owner