It was a while ago I asked this but my own personal favoured answer would be Operational Data, which could be interpreted to mean data that can be modified by business operations.
It is also possible to take this a bit further and broadly divide into three (although there may be some crossover between these):-
- Reference Data: Fixed for the whole duration of an application.
- Operational Data: Directly managed by the application during normal business operations.
- Volatile Data: Can be changed by external processes without being directly controlled by the application. (This may or may not be a subset of Operational Data).