live

live: /liv/ adj.,adv.   Opposite of `test'.  Refers to actual
   real-world data or a program working with it.  For example, the
response
   to "I think the record deleter is finished." might be "Is it live
yet?"
   "Have you tried it out on live data?"  This usage usually carries
the
   connotation that live data is more fragile and must not be
corrupted,
   or bad things will happen.  So a more appropriate response might
be:
   "Well, make sure it works perfectly before we throw live data at
it."
   The implication here is that record deletion is something pretty
   significant, and a haywire record-deleter running amok live would
   probably cause great harm.