The agile approach to software development has been winning enterprise converts since a group of 17 programmers laid out the core principles in the Agile Manifesto in 2001. The incremental sprints to deliver working software and frequent interactions with business stakeholders that agile requires are widely cheered for keeping software projects focused on practical goals. But there's a growing movement to improve agile by making developers accountable for how well their software actually runs in full-blown production mode.
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