Route and Flight

what is the difference b/w Route and Flight.
Does it mean Each Route has a Flight or Route has 1..* Flight.

raj,
Unfortunately, this is something that we cannot help you with. You will need to define these for your solution. Make sure you document your assumption. The main point is consistency. Once you define these, make sure you stick with that definition throughout the solution. Good luck.

you can have many routes but you can fly in only one route at a time i.e flight !

One itinerary consists of 1 to n Segments. And according to the BDOM each route represents a unique segment.

say New York to Amsterdam over Berlin and Paris. That is my understanding.

Edit:actually maybe I am thinking too much in details, there can exist only 1 FromCity and one ToCity (also given the info that the FBN flies only nationally)...
[ June 19, 2005: Message edited by: R�stem-� Zal� ]

You can think of a route as any two points of an airline's network.

A flight, on the other hand, is a service between those points. This service has a frequency, eg daily. Note that this flight service can span more than two points. Here is an example.

Route: JFK-LHR
Flight: JFK-AMS-LHR

So, the JFK-AMS-LHR flight is via AMS (Amsterdam) and could involve a plane change. But that's OK, as it is a service between JFK and LHR.

THe airline will, in a case like this, refer to JFK-AMS and AMS-LHR as flight legs (or sectors or segments), but it's all part of the flight.

Does this mean Route contains 1..* flights or Segments

Is Route associated with 1 or more Flights?

Raj

The airline world jargon is very confusing, there's no real stantard. Route, segment, flight, leg... are used with different meanings. You should use definitions that meet the requirements, that's the most important.
Folks changed the BDM according to their definitions and got high score, others don't change it using definitions that meet the BDM and, also, got hight score.
You have to make decisions and justify them, it's the architect's job.

Regards
Jose

Jose,

your are correct, but not really....
In a real world project it's the architects job to interview the business analyst and get the correct definition from her/him.

D.

David

In a real project often:
-Stakeholders aren't always available, "domain experts" are very busy people..
-Stakeholders have differents definitions for the same concept
-Business analysis may fail, he's a human
-Business analyst "is no longer available", he leaves the company.
-deadline, deadline, time to market, budget...go ahead with what you have are the words we always heard.
.......

Regards
Jose