Wilton, RobinHühnlein, DetlefRoßnagel, HeikoSchunck, Christian H.Talamo, Maurizio2017-06-202017-06-202016978-3-88579-658-9We can all think of instances where we find that data about us has been used in a way that we find surprising, unwelcome, or even harmful. The more our lives are conducted on, or through, online services, the more potential there is for this to happen, and the greater our dependence on the behaviour of other entities over whom we may have little or no control. In that context, how can we optimise the outcomes for ourselves, as individuals, citizens and consumers?enText/Conference Paper1617-5468