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AFTER CERTAINTY

Person

John Allspaw

Engineering leaders who documented high-frequency deployment and DevOps cooperation at Flickr.

Why this matters

Their deploy cadence essay is sediment for coupling—how technical practice enables continuous correction.

Focus in observatory

Works

article

10+ Deploys Per Day: Dev and Ops Cooperation at Flickr.

Allspaw, John, and Paul Hammond. "10+ Deploys Per Day: Dev and Ops Cooperation at Flickr." Velocity conference presentation, 2009.

Related books

Book

Coupling

Cohesion, Consequence, and the Architecture of Responsibility

A practical framework for seeing where systems are tightly joined, where they drift apart, and how those coupling choices shape accountability over time.