3. What other new applications of data warehouses can you imagine at an airline?

In the United Kingdom, Continental must pay a departure tax for passengers who leave the UK on Continental flights. Each month, employees in the London office calculated this departure tax by manually reviewing the records for every passenger who traveled out of London, and the employees submitted the appropriate amount to the government. If passengers are passing through the UK in less than 24 hours, they are exempt from the tax, but the manual process could not always identify those individuals. Thus, Continental regularly overpaid the departure tax, which equated to a $300,000 annual cost for the airline.