# Data subjects [**Article 30 of the GDPR**](https://gdpr-info.eu/art-30-gdpr/) requires that a description of the categories of data subjects affected by the processing be entered in the register. The identification of the types of people concerned will allow you to analyze the sensitivity of the processing activity and better be able to assess the risk for the people concerned. Thus, a processing activity will not have the same sensitivity if it concerns minors in a hospital as a file of customers in a business. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://doc.dastra.eu/en/features/editer-le-registre/remplir-le-questionnaire/personnes-concernees.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.