Yes, I entirely agree: your black box is slightly larger than the usual queuing box... which make your box think "outside the box" (;-))On 28 May 2014 20:31, "David Collier-Brown" <davec-b@rogers.com> wrote:
> A niggle: people working in queuing theory* make the simplifying
> assumption that queues don't drop. When describing the real world, they
> talk of "defections", the scenario where a human arrives at the tail of
> the queue and "defects", either to another queue or to the exit door of
> the store!I think my description of the black box is still valid: a "defection" must imply a second output from the box, otherwise it will appear as either a reordering (preserving the property) or a discard.
- Jonathan Morton
-- David Collier-Brown, | Always do right. This will gratify System Programmer and Author | some people and astonish the rest davecb@spamcop.net | -- Mark Twain