I remember 20 plus years ago when I first came into the angency (sector suites) IBM and company got a lot of money for nothing. Then Jane came along, started this new idea, bring NATCA in from the beginning, build a little, test a little. Next thing you knew systems were working, when they came on line, on time and under budget (AMASS, and STARS) from the terminal side. Failures since they went back to keeping the user out of the process (ERAM and ASDE-X) to name a few.