Problems can
(and will inevitably) happen at any step in the system especially when the
system is tightly-coupled and interdependent
The longer
any system runs; the more risks accumulate and the more probable that problems
happen
-
Things go wrong all the time,
and will go wrong
-
The best strategy towards this
is
-
Be prepared psychologically to
accidents
-
Always run quality tests
-
Have experts prepared and
ready to prevent and deal with accidents
-
Watch and learn from previous
accidents to prevent more accidents
-
Analyze close calls to figure
out what may cause problems
-
Stress testing (simulate failure in the
system to learn from it)
Notice that
you don't want to add more to the system in order to make it better; the
simpler the system is, the less complicated it is the better
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