At Flickr, the video- and photo-sharing website, the live software platform is updated at least 10 times a day. Flickr accomplishes this through an automated testing cycle that includes comprehensive unit testing and integration testing at all levels of the software stack in a realistic staging environment. If the code passes, it is then tagged, released, built, and pushed into production.
This type of lean organization, where software is delivered on a continuous basis, is exactly what the agile founders envisioned when crafting their manifesto: a nimble, stream-lined process for developing and deploying software into the hands of users while continuously integrating feedback and new requirements. A key to Flickr’s prolific deployment is DevOps, a software development concept that literally and figuratively blends development and operations staff and tools in response to the increasing need for interoperability.
DevOps is the combination of cultural philosophies, practices, and tools that increases an organization’s ability to deliver applications and services at high velocity: evolving and improving products at a faster pace than organizations using traditional software development and infrastructure management processes. This speed enables organizations to better serve their customers and compete more effectively in the market.
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