case study: amazon
 [turning the database inside-out]

approaches:

  1. purchase groups (database, automation, many-to-many)
  2. customer reviews (many-to-many)
  3. the page you built (database, automation)
  4. recommendation lists (many-to-many)
  5. customers who bought that bought this (database, automation)
  6. internet movie database (database, automation)
  7. search inside the book (database, automation)
  8. auctions (live, many-to-many)
  9. wish lists (many-to-many)
  10. sales ranking (database, automation)
  11. resellers (many-to-many) [viral]
  12. listen to audio samples (multimedia)
  13. available in PDA version (location-independent, device-independent)

totals:

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