Article is from March 13, 2015 regarding ELIS System and processing times:
"An online system that was supposed to automate the processing of green cards and other immigration benefits has struggled to function properly since at least 2009.
The electronic system's persistent challenges "Are going to create more risks as far as the ability of the system to keep up-but more importantly for the business process to keep up and still be safe for the country.
But it doesn’t seem to be offering anyone much help right now.
ELIS was not equipped for the expanded Deferred Action for Childhood Arrivals (DACA) program when USCIS began accepting applications in February 2015.
He laments the state of the system five years later: "It looks like ELIS is typical of many of the federal government's computer systems. It's never lived up to the expectations to allow executive branch employees to be more efficient and effective for the American taxpayers."
http://www.nextgov.com/cio-briefing/...-wrong/107505/