Bezos hired West Point Academy graduate and ex-Army Ranger Rick Dalzell to enforce these rules. Bezos mandated another important change along with these rules: each service would be owned by a cross-functional team that would build and run the service throughout its lifecycle. As Werner Vogels, CTO of Amazon, says, “You build it, you run it.”4 This, along with the rule that all service interfaces are designed to be externalizable, has some important consequences. As Vogels points out, this way of organizing teams “brings developers into contact with the day-to-day operation of their software.
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