[KenWittlief]

now everyone on your team has learned a valuable lesson on SW test and valididation.

We had a student on our team last year who wanted to make 'one little change' to the code right before we needed to demo the machine to about 200 people

we explained to him that SW changes have to be thoroughly tested, there is no such thing as a simple change

and Dr Hensel told the student about a problem with the flight control system on F18s that arose when a programmer made a simple change to the SW, which caused the aircraft to want to fly upsidedown when you flew south of the equator (which actully happened on one mission)

and after all this, the students response was "but we only want to change one line of code and we KNOW it will work ok"

Experience is a cruel teacher - first you are tested, then you learn the lesson. :^)