None of these are original — It’s just that we don’t know where they were stolen from!
- There is no such thing as previously flown hardware, i.e., the people who build the next unit probably never saw the previous unit; there are probably minor changes; the operational environment has probably changed; and the people who check the unit out will in most cases not understand the unit or the test equipment.
- Most equipment works "as built," i.e., not as the designer planned. This is due to layout of the design, poor understanding on the designer’s part, or poor understanding of component specifications.
100 Rules for Project Managers (Some great gems of project management wisdom from NASA’s Goddard Space Flight Center)