34. The elements necessary to implement the principle of accuracy include—

(a)  ensuring data sources are reliable in terms of data accuracy;

(b)  having personal data particulars being accurate as necessary for the specified purposes;

(c)  verification of the correctness of personal data with the data subject before and at different stages of the processing depending on the nature of the personal data, in relation to how often it may change;

(d)  erasing or rectifying inaccurate data without delay;

(e)  mitigating the effect of an accumulated error in the processing chain;

(f)  giving data subjects an overview and easy access to personal data in order to control accuracy and rectify as needed;

(g)  having personal data accurate at all stages of the processing and carrying out tests for accuracy at critical steps;

(h)  updating personal data as necessary for the purpose; and

(i)  the use of technological and organisational design features to decrease inaccuracy.