I'm trying to design my screen layout and I'm having trouble deciding what should be used as selection criteria fields. Obviously, there should be selections based on flight number, origin and destination airports, carrier and day, but should there also be selections for the other fields like price, time, duration, and current number of available seats? Also, are some of my obvious choises not so obvious? In addition, should I make cascading selection boxes (if they pick an origin of 'SFO' it automatically reduces the selections in other boxes to only those still valid) [This message has been edited by J. R. Titko (edited October 12, 2001).]
I think you are ok if you have provided flight number, origin and destination airports, carrier and day. Even though it is possible to include other fields, they may not be really important for the customer to decide in the initial selection. They may become important once a set of results are returned based on the initial fields that you have considered. Well it is possible to write cascading selection boxes, I do not know whether this is important in the requirements. So I would not implement it however.
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