It is a method of "DECLAS"
"In essence, ICITE changes the business model for intelligence agencies, mandating shared services. Instead of each agency building out its own systems, select agencies—either one or two of those with larger budgets—are responsible for governing its major components."
From Q's https://www.theatlantic.com/technology/archive/2014/07/the-details-about-the-cias-deal-with-amazon/374632/