From Thoughtworks’ radar that came out last week.
Besides being an excellently difficult word to say, it has a very cool meaning.
In our desire to support ever-changing business models,learn from past behavior and provide the best experience for every individual visitor, we are tempted to record as much data as possible. […] The term Datensparsamkeit is taken from German privacy legislation and describes the idea to only store as much personal information as is absolutely required for the business or applicable laws. […] If you never store the information, you do not need to worry about someone stealing it.
Check it out in the “techniques” section, which also has a couple JavaScript points (catching errors and testing in the “adopt” radar).