While successfully releasing a new product, feature, or UI is certainly not rocket science, you should consider approaching your next product launch like NASA approaches rocket launches. Folks don't just show up at Cape Canaveral on launch day and say "Let's try this and see what happens!" Whether you're launching a product or launching a rocket, a single error can have a massive-even catastrophic-impact. Because NASA has zero room for error, they must be meticulous about planning, communicating, training, and testing well ahead of launch day.