MACROMEDIA DREAMWEAVER MX 2004-USING DREAMWEAVER Use Manual page 743

The fractional owners, or shareholders, pay Arrow Aircraft the following fees:
•
A monthly management fee proportional to the owner's share of the aircraft to cover pilot,
insurance, and hangaring costs
•
An "occupied" hourly fee covering all direct costs such as maintenance, engine reserves
and catering
In exchange, a shareholder tells Arrow Aircraft when and where they want to go and Arrow
Aircraft takes care of the rest, including obtaining flight and ground crews and catering the flight.
Arrow Aircraft requires a minimum notice of 8 hours to prepare an aircraft for a flight.
Arrow Aircraft guarantees 800 "occupied hours" per year for each aircraft. Occupied hours are
hours where the jet is both in flight and occupied by at least one passenger. Occupied hours begin
six minutes (0.1 of an hour) before the aircraft takes off with passengers and end six minutes after
the aircraft lands.
Each aircraft can have up to eight owners. For example, an individual or corporation can purchase
a 1/5 interest (or a 1/5th share) in a jet. Since Arrow Aircraft guarantees 800 occupied flight hours
per year, the owner of the 1/5th share is entitled to 160 occupied hours (800 hours / 5 = 160).
Studying Arrow Aircraft's feature request
Arrow Aircraft hired you to build a web application with the following features:
•
Allow any aircraft shareholder to request an aircraft for a flight
•
Provide the company's Flight Operations Department (Flight Ops) with all the information
needed to begin preparing the aircraft, including details of the shareholder's request (itinerary,
departure date and time, catering needs, etc.), the shareholder's remaining occupied hours, and
the availability of the aircraft for the proposed trip
•
Allow Flight Ops to book the aircraft to prevent scheduling conflicts
What questions will users ask the database?
After you become familiar with the proposed features of the web application, you sit down with
the database users and pose the following question: "What questions will you ask the database?"
You learn from some of the aircraft shareholders that they want to ask the database the
following questions:
•
How many occupied hours do I have left?
•
Is my aircraft available on a certain date or dates?
After a shareholder requests an aircraft, the employees in Flight Ops will ask the database the
following questions:
•
Where does the shareholder want to go?
•
What is the itinerary—one way, return, multi-city? Flight Ops needs this information to start
planning the flight (check weather forecasts, file flight plans, and so on) and to estimate the
total occupied hours.
•
Does the shareholder have sufficient occupied hours remaining for the proposed itinerary?
•
When does the shareholder want to leave?
•
What is the shareholder's plane?
•
Is the plane available for the proposed itinerary?
Database design basics 743