Table 3.

e-Consent management divided into 3 levels, describing the options of collecting and using structured data in e-consent

Level	Type	Structure	Explanation
Level I	Paper consent form	No structured data	Consent on a paper form, which is scanned and kept electronically
Level II	Paper and e-consent form	Some structured data	Consent on a paper form, which is transferred into an electronic format (manually or by automatic parsing of paper-based consent scans)
Level III	e-consent form	Structured data	Consent in an electronic form. IT systems can interpret and process participants consent decisions from structured data

Note: In accordance with ref.²⁰