These programs date back to at least 2002[1] and were revealed in March 2013 in the book Deep State: Inside the Government Secrecy Industry, by Marc Ambinder and D.B.
RAGTIME consists of four parts: RAGTIME-A, RAGTIME-B, RAGTIME-C, and RAGTIME-P.[2] According to the book Deep State, only about three dozen NSA officials have access to RAGTIME's intercept data on domestic counter-terrorism collection, though outside the agency some 1000 people have knowledge of the program's details.
Internally, the NSA has a compliance staff of about four or five people to ensure the program stays within laws and regulations.
All intercepted data go to the NSA headquarters in Fort Meade, Maryland, where a program called XKeyscore processes them and sending them to different so-called "production lines" that deal with targets, like counterterrorism or specific countries.
[1] According to Marc Ambinder, RAGTIME refers to phonecall and e-mail content intercepted under FISA authority.