9. Development Phase

“You can’t just ask the customers what they want and then try to give that to them.

By the time you get it built, they’ll want something new.”

—Steve Jobs

“But Mousie, thou art no thy lane,In proving foresight may be vain:The best-laid schemes o’ mice an’ menGang aft agley,An’ lea’e us nought but grief an’ pain,For promis’d joy!”

—Robert Burns, “To a Mouse, on Turning Her up in Her Nest with the Plough”

Stage I, when successfully executed, provides a solid foundation for development along with a development strategy and plan. At this point, “concurrent engineering” transitions to “concurrent development” of components, integration, and testing. The result of this phase is a system that can go forward into production and operations. ...

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