&gt; I don&#x27;t know if those are all in the same category. For example the Army cancelled Future Combat System because it didn&#x27;t work. Would the project have been considered a &quot;success&quot; if they had put it into production instead?<p>If it didn&#x27;t work?  Hopefully not.<p>But military stuff is a bit different.  Military systems tend to try to push the state of the art as far as possible, for as much edge in combat as possible.  That makes for much higher chances of failure.