same identity data

Identity data are considered the same if the values in corresponding data fields between different EU information systems are the same. E.g. last name: 'Smith' corresponding with last name: 'Smith'.

In contrast: 

An example of different identity data would be: last name: 'Smith' corresponding with last name: 'Johnsson'.

An example of similar identity data would be: last name: 'Smith' corresponding with last name: 'Smieth'.