Thursday, August 29, 2013

The Willie Sutton Data Principle (WSDP)

Willie Sutton was a bank robber. The story (possibly apocryphal) goes that when asked why he robbed banks, he replied, "Because that is where the money is". So continuing the theme, of doing things because that's where they are, let's turn attention to data capture.
Data (including metadata) captured during actual operation are often more interesting than attempts to capture intent after the fact. So let's make sure we do the capture that way. The more impressive web properties do exactly that.

  • You looked at these 12 options and didn't buy (from a search process)
  • You looked at these 4 things together and did a side by side comparison (when online computer shopping) - and you purchased.......
  • You rented this movie, here are some others you might like - more importantly this kind of site learns more about your habits as you visit more often
Compare and contrast this practice with the university that I mentioned in the previous post. There the data capture specifically goes against the WSDP. The school is not capturing the data in the course of normal activity. It is attempting to make the data sources (students) do something extra and inconvenient to provide data that they don't care about.

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