Hachim Haddouti, adv. DBMS & DW CSC5301, Ch11 Chapter 11: Voyage Businesses Adv. DBMS & DW Hachim Haddouti

Hachim Haddouti, adv. DBMS & DW CSC5301, Ch11 Voyage Businesses: Needs The airline marketing department wants: –to see what flights the frequent flyers take, –which planes they fly, –which seats they sit in, –what the base fare they pay is, –how often they upgrade their tickets, –how they pay for their upgrades, –how they redeem their frequent flyer miles, –whether they respond to special fare promotions, –how many overnight destinations they stay in, –how long the overnight stays are, –what other airlines are used on the same trips, and what proportion of these flyers have Platinum, Gold, or Aluminum status –…

Hachim Haddouti, adv. DBMS & DW CSC5301, Ch11 Basic Dimensions Extracted Details: customer (frequent flyer #), leg origin, leg destination, flight, fare class, date flown, date purchased, sales channel, status, ticket #, segment #. Dimensions: Customer airport (x4) flight(dep time, used aircraft,..) fare class(type of seat, promoted,..) date(date flown,date purchased) (x2) sales channel(travel agency/online purchase) status(customer status, frequent flyer classification..). see(P 156)

Hachim Haddouti, adv. DBMS & DW CSC5301, Ch11 Voyage Businesses cont. The most meaningful grain of the database is the individual leg of the journey (specific information such as airplane, fare class, flight origin, flight destination). Flight dimension is slowly changing.

Hachim Haddouti, adv. DBMS & DW CSC5301, Ch11 travel-oriented credit card: tracks airline flights, hotel stays, and car rentals. Firstly starting with Frequent flyer incorporated in a value chain -- travel credit card data. Add hotel and car rental. See p. 157 common dim: customer, date, ticket #, and flight segment Drill cross on common dimensions Travel Credit card

Hachim Haddouti, adv. DBMS & DW CSC5301, Ch11 Grain for hotel is the entire stay and for rental car is entire car rental period. ticket #, and flight segment in hotel and car rental schemas makes sence only if these are part of a trip, otherwise are NULL values. PD: ” The primary characteristic of a voyage schema is the need to place origin and destination dimensions in the fact table. “ Travel Credit card cont.