RE: [end points comm] OPES System

[Alex Rousskov <rousskov@xxxxxxxxxxxxxxxxxxxxxxx>]

On Tue, 19 Aug 2003, jfcm wrote:

> At 23:41 18/08/03, Alex Rousskov wrote:
> >
> >That's fine, but you need a better definition of a domain and/or
> >operator. The original "OPES domain is the area of reponsibility of
> >an operator" does not imply the above explanation.
> >
> >Also, since you leave domain boundaries for the operator to decide,
> >you need to explain how conflicts (two operators think they are
> >responsible for the same domain and instruct their processors to
> >update the trace accordingly) and misses (no operator claims
> >responsibility for a domain/processor).
>
> I must go. But I think better anyway to proceed with a general
> response and see what you objet as I do not understand your
> question. So I suppose there is confusion to clarify.
>
> Let stick to the Airline image. And let take the following analogy
> (different of the one I took with Markus, but as good and clearer
> here).
>
> A   jet        = processor
> An airline   = domain - area of responsibility of the ariline operator.
> An alliance (or a tour or a travel I organize, etc.) = a system
>
> Are all your questions answered or not?
> If not where are you difficulties coming from?
> The analogy or  from not addressed conflicts?

I can use the airline analogy to illustrate what is missing in your
definitions, though it may not be a perfect example:

Lack of responsibility:

	Your tour group arrives at the destination
	with their bags lost. They call you (the
	"system" contact point) to complain. You tell
	them that the bags are not your responsibility
	and they should check with the last jet airline.
	They go to the last airline, Northwest Airlines.
	Northwest tells them that the last leg on their
	itinerary was operated by KLM and they have to
	complain to KLM. KLM says that based on their
	agreement with Northwest, Northwest is responsible
	for the lost baggage.

	Thus, your group has contacted three suspects and all refused
	to take responsibility. Since your definitions rely
	on somebody to accept/define responsibility, it is not clear
	who is at fault here.

Double responsibility:

	Upon arrival, your tour group discovers that they
	were awarded twice the miles they should have been
	because both KLM and Northwest airlines took the
	responsibility to award miles for the trip. Each
	individual airline claims it had the right to do
	that since they can define the area of responsibility any way
	they want.

HTH,

Alex.