I have been doing a bit of work with data visualization recently, using Tableau. It got me thinking about the way we use data to produce information, and how that is changing.
This is about our experience recently on a project to improve the performance and stability of a set of engineering applications after migration to a new datacentre. We had really excellent data produced by the application centre business analysts. These showed in detail that applications were significantly slower than previously, across a wide range of transactions. On average, transactions were taking 25% longer (let's say). Someone set the objective that we would not be satisfied until 90% of transactions were within the benchmark figure for each transaction.