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Sentinel is a software case management system developed by the US FBI with the aim to replace digital and paper processes with purely digital workflows during investigations. There was a previous failed project called Virtual Case File.
The project started in 2006 with a $425 million budget. After several delays, new leadership, a slightly bigger budget, and adoption of agile software development methodology, it was completed under budget and was in use agency-wide on July 1 2012.
Video Sentinel (FBI)
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Source of the article : Wikipedia