2. You might want to get in touch with these guys http://www.l5-series.com/ one of them worked at nasa or esa and you might be interested in the series too
When the tests of the flight sequence finally started, the flight control system reportedly was not able to score a single clean run of its entire flight program without experiencing some sort of problems.
So onboard computer which controls the flight basically did not pass any pre-flight test. "Let's try, if it fails also in real, not only during testing..."
To the systems programmer, users and applications serve only to provide a test load.