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What's Fitness What's Fitness Function-Driven Function-Driven Development for Development for Operability? Operability? Monitorama Baltimore 2019 | @joatmon08

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Evolutionary Architecture Evolutionary Architecture

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Architectural changes affect Architectural changes affect everyone... everyone... Security Compliance "Operations" Development Infrastructure "Platform" Finance

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And the way they operate. And the way they operate. Architectural Change Operational Change Container architecture Vulnerability Management Microservices Observability GDPR Data Inventory Reporting Continuous Delivery Change Advisory Boards?

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Operability Operability is the ability to keep a system in secure and reliable functioning condition

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A Fitness Function A Fitness Function "Building Evolutionary Architectures" by Neal Ford, Rebecca Parsons, & Patrick Kua is a particular type of objective function that is used to summarize how close a given design solution is to achieving the set aims.

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Service-Level Objectives can be a ļ¬tness function... but there are more!

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Fitness Function-Driven Fitness Function-Driven Development Development by Rosemary Wang & Paula Paul introduces continuous feedback for architectural conformance and inform the development process as it happens, rather than after the fact. Fitness Function-Driven Development

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Let's try this. Let's try this. Security github.com/joatmon08/2019- github.com/joatmon08/2019- monitorama monitorama

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What did we like about it? What did we like about it? KonMari method for former assumptions, tools, and telemetry Highlight gaps in process, tooling, and telemetry Open discussions for technical debt Develop mutual learning context

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What would we improve? What would we improve? Try not to over-optimize Balance implemention with review from stakeholders

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What changed in our What changed in our architecture that architecture that affects how effectively affects how effectively we operate? we operate?

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References References github.com/joatmon08/2019-monitorama Fitness Function-Driven Development Building Evolutionary Architectures by Neal Ford, Rebecca Parsons, & Patrick Kua

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Thank you! Thank you! Rosemary Wang (she/her) @joatmon08 Developer Advocate, HashiCorp