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Question on BDM entity: Equipment

david chen
Ranch Hand

Joined: Nov 30, 2001
Posts: 44
Hi,

Can somebody please explain to me what the entity Equipment means in the BDM provided?

Thank you very much.

- David
Salah LAARIDH
Greenhorn

Joined: Dec 26, 2005
Posts: 8
Hi,

I think it s the means of transport like plane boing 737.
Parag Bharambe
Ranch Hand

Joined: Jan 12, 2006
Posts: 57
So what is the difference bet Equipment and flight? Can somebody explaing with some example please?
Laxmi Raghu
Ranch Hand

Joined: Feb 16, 2005
Posts: 218
Equipment - Represents type of aircraft whether boeing, jet etc, it's seating capacity, manufacturer, model number etc. Each flight belongs to one type of equipment.

Flight - Flight is an air transportation between two cities. Each flight is associated with exactly one segment and each flight has one equipment which represents type of aircraft, it's seating capacity etc.

Hope this info helps.
Parag Bharambe
Ranch Hand

Joined: Jan 12, 2006
Posts: 57
Thanks Laxmi
Ashish Jain
Ranch Hand

Joined: Sep 23, 2000
Posts: 50
so when ur search for flights.. you search all flights or all segments b/w two cities?


Ashish Jain<br />MCP, SJCP, IBM XML, SCEA
Laxmi Raghu
Ranch Hand

Joined: Feb 16, 2005
Posts: 218
It's based on how you define flight from nthe customer point of view and an architect's point of view.

As far as customer is concerned, flight is the air transportation between origin and destination.

From an architect's point of view, flight is the air transportation between two points. Since it is defined this way, searching flights or segments means one and the same. Internally you will search for segments that fulfills the journey between origin and destination.
 
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