Jez Humble Books

Before we can talk about improvement, we need to understand what performance actually means. Through our research, we identified four key metrics that reliably predict an organization’s ability to deliver software effectively: deployment frequency, lead time for changes, mean time to restore service...

From Accelerate: The Science of Lean Software and DevOps – Building and Scaling High Performing Technology Organizations

One of our most surprising discoveries was just how closely software delivery performance predicts organizational success. Companies that excel technically grow faster, are more profitable, and enjoy higher levels of customer satisfaction. The implication is profound: IT is no longer a support funct...

From Accelerate: The Science of Lean Software and DevOps – Building and Scaling High Performing Technology Organizations

When we talk about the First Way — Flow — we describe the lifeblood of DevOps: the smooth, uninterrupted movement of work from concept to customer. The First Way is about optimizing the entire system of work, not the individual silos. In traditional organizations, development pushes code down a one-...

From The Devops Handbook: How to Create World-Class Agility, Reliability, and Security in Technology Organizations

If the First Way accelerates delivery, the Second Way ensures we stay on course. Feedback is the compass that guides continuous improvement, allowing teams to detect issues early and adjust before small problems become catastrophic ones. In traditional environments, feedback is painfully slow — user...

From The Devops Handbook: How to Create World-Class Agility, Reliability, and Security in Technology Organizations