Getting the Most out of Your Data CMPT 455/826 - Week 4, Day 2 (Various sources) Sept-Dec 2009 –...
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Transcript of Getting the Most out of Your Data CMPT 455/826 - Week 4, Day 2 (Various sources) Sept-Dec 2009 –...
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Getting the Most out of Your Data
CMPT 455/826 - Week 4, Day 2
(Various sources)
Sept-Dec 2009 – w4d2 1
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A tale of two Companies
• When bookstores went on-line– For years “Books in Print” <http://www.booksinprint.com/bip/>
• provided bookstores with information • on all the different books that are currently available
– including information on the publishers of the books
• Blackwells Books (UK) http://bookshop.blackwell.co.uk
– was a long established company when in (1994/5?) – it was one of the first companies to embrace e-Commerce
– How many of you have ever heard of Blackwells?
Sept-Dec 2009 – w4d2 2
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How Blackwells used BIP
• BIP information can be used – as the basis for inventory records
• Blackwells e-Commerce site – offered to sell any books that they had in stock– just like a “bricks and mortar” bookstore
– after all you can’t sell what you don’t have, or can you?
• They probably also used the BIP information– to help with reordering books, when needed
Sept-Dec 2009 – w4d2 3
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Amazon.com (1)
• In 1995 Amazon.com was a startup company
• It also used BIP – to provide the basis of the books it would sell
• Only it decided to sell anything in BIP– whether it had it in stock or not
• thus providing consumers with the widest possible selection
– and to use it to order any books that it did not have in stock• to fill the orders it took (“Just In Time” processing)
Sept-Dec 2009 – w4d2 4
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Amazon.com (2)
• It further used data to keep its inventory to a minimum
– by analyzing changes in the rate of sales on individual items
– to determine whether or not it would be profitable• to keep books in stock (only big sellers)• or to sell books and then get them to fill the orders
– to avoid stocking books that won’t sell soon
Sept-Dec 2009 – w4d2 5
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The results
• How many of you have bought a book from a “bricks and mortar” (e.g. U of S) bookstore?
• How many of you have ever special ordered a book?
• How many of you have ever bought a book from Amazon.com/.ca?
Sept-Dec 2009 – w4d2 6
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Further uses and abuses of data
• After a while doing e-Commerce– Blackwells started requiring you to register
• e.g. give it data on you
– before being able to look at its information on its books– e.g. charging for its information
• Amazon always – let you browse its information on the books it knew about– e.g. giving information away for free
• Which bookstore have you heard about?
Sept-Dec 2009 – w4d2 7
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Is giving info away always good?
• At about the same time cd-now.com– provided track listings of the cd’s it wanted to sell customers
• Lots of customers used this information– to be more efficient in using Napster.com– to get music for free– and to avoid buying it from cd-now
• The track listings were eventually removed
• Sometimes info works for you, sometimes against you!
Sept-Dec 2009 – w4d2 8