Steve denning
Senior Contributor
forbes.com
It’s ironic that the idea of Agile—a central concept of competitiveness in the 21stCentury economy—which began in manufacturing in the early 1990s, took hold in software, not manufacturing. While manufacturers continued to focus on process consistency and efficiency, it was software developers who picked up the ball on Agile and ran with it. It was software developers who showed us in detail.
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Here the essential phases of the Agile software development life cycle
Concept
Inception
Iteration
Deployment
Support
Retirement