JAN 25, 2013 7:56am ET

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Do You Need Big Data Governance? Maybe.


When you get into data quality now you’re looking at different things like how to deal with streaming data that’s flowing in, and that’s a different kind of data quality than most in that field have dealt with. In some examples you are trying to match multiple feeds from different sensors, maybe a temperature sensor and a motion sensor. You might expect the temperature sensor to respond 10 times a second. For some reason you lose three seconds and that’s potentially a data quality issue. In the book I talk about temporal alignment and the rate of arrival. It’s a different implementation of data quality, though things like metadata still apply. If you’re thinking about clickstream analytics, which is big data, how do you define a unique visitor to a website? How do define a session, one that is closed or one that is returned to while open? I found many governance issues in that vein that may not have been considered.

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