4. Requirements, Sin, and Contracts

Boeing-Sikorsky RAH-66 Comanche helicopter, originally the LHXSikorsky Aircraft/Richard Zellner/AP Wide World Photos

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Any attempt to formulate all possible requirements at the start of a project will fail and would cause considerable delays.

PAHL AND BEITZ [2007], ENGINEERING DESIGN

The committee believes that getting to a state of clear and complete system-level requirements requires the interaction with potential contractors that occurs between Milestones A and B.

JAMES GARCIA, FOR THE AIR FORCE STUDIESBOARD COMMITTEE ON PRE-MILESTONE AAND EARLY-PHASE SYSTEMS ENGINEERING

A Horror Story

The general had spent ...

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