33. The elements necessary to implement the principle of data minimization include—
(a) avoiding the processing of personal data altogether when this is possible for the relevant purpose;
(b) limiting the amount of personal data collected to what is necessary for the purpose;
(c) ability to demonstrate the relevance of the data to the processing in question;
(d) pseudonymising personal data as soon as the data is no longer necessary to have directly identifiable personal data, and storing identification keys separately;
(e) anonymizing or deleting personal data where the data is no longer necessary for the purpose;
(f) making data flows efficient to avoid the creation of more copies or entry points for data collection than is necessary; and
(g) the application of available and suitable technologies for data avoidance and minimization.
