GDPR Article 35 makes a DPIA mandatory for high-risk processing, including systematic and extensive evaluation of personal aspects based on automated processing, including profiling, where decisions produce legal or similarly significant effects. DPIA guidance in the grounding materials treats automated decision-making and profiling as risk criteria that should be assessed early and revisited when the processing changes.
The DPIA record should connect the Article 22 analysis to necessity and proportionality, data minimisation, accuracy, retention, transparency, rights handling, security controls, processor involvement, and residual risk. If a prior DPIA is reused for similar processing, document why the nature, scope, context, and purposes remain sufficiently similar.