Now, it's time to apply our newly learned principles to a completely different theme. We upgrade from cars to planes, covering a simple airline system.
This chapter's case study does not pretend to encompass the full collection of data from real airline—it's only a sample. Nonetheless, we'll see that the principles we learned previously can be applied to build and refine a correct and coherent data structure.
Normally, each airline has its own information system. We assume here that we have got the mandate to build an information system that encompasses many airlines.
After reviewing the airline system's current website, a booking agent's website, some electronic tickets, ...