I think "big data" is a term characterized more by the analytical techniques you apply on them rather than the size of the data. Traditional inferential statist

I think "big data" is a term characterized more by the analytical techniques you apply on them rather than the size of the data. Traditional inferential statistical techniques work on "small data", while newer Bayesian techniques work on "big data" - note that this does not imply that one cannot work on the other.