For the purposes of this Regulation, the following definitions apply:

(1) "electronic identification" means the process of using person identification data in electronic form uniquely representing either a natural or legal person, or a natural person representing another natural person or a legal person;

(2) "electronic identification means" means a material and/or immaterial unit containing person identification data and which is used for authentication for an online service or, where appropriate, for an offline service;

(3) "person identification data" means a set of data that is issued in accordance with Union or national law and that enables the establishment of the identity of a natural or legal person, or of a natural person representing another natural person or a legal person;

(4) "electronic identification scheme" means a system for electronic identification under which electronic identification means are issued to natural or legal persons or natural persons representing other natural persons or legal persons;