A Common Semantic Model of the GDPR Register of Processing Activities
Paul Ryan, and Harshvardhan J. Pandit, Rob Brennan

TL;DR
This paper analyzes variations in GDPR Register of Processing Activities templates across EU jurisdictions and proposes a unified, flexible data model to standardize ROPA processing and enhance compliance demonstration.
Contribution
It introduces a consolidated data model for ROPAs and extends the Data Privacy Vocabulary to support consistent GDPR compliance documentation.
Findings
Template scope and granularity vary widely between jurisdictions.
The Data Privacy Vocabulary does not directly model ROPAs.
The proposed CSM-ROPA enables standardized ROPA processing.
Abstract
The creation and maintenance of a Register of Processing Activities (ROPA) is an essential process for the demonstration of GDPR compliance. We analyse ROPA templates from six EU Data Protection Regulators and show that template scope and granularity vary widely between jurisdictions. We then propose a flexible, consolidated data model for consistent processing of ROPAs (CSM-ROPA). We analyse the extent that the Data Privacy Vocabulary (DPV) can be used to express CSM-ROPA. We find that it does not directly address modelling ROPAs, and so needs additional concept definitions. We provide a mapping of our CSM-ROPA to an extension of the Data Privacy Vocabulary.
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