The Three Ways Explained
In The Phoenix Project, we describe the underpinning principles that all the DevOps patterns can be derived from as “The Three Ways.” It is intended to describe the values and philosophies that guide DevOps processes and practices.
The First Way is about the left-to-right flow of work from Development to IT Operations to the customer. In order to maximize flow, we need small batch sizes and intervals of work, never passing defects to downstream work centers, and to constantly optimize for the global goals (as opposed to local goals such as Dev feature completion rates, Test find/fix ratios, or Ops availability measures).
The necessary practices include continuous build, integration, and deployment, creating environments ...
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