The name of a certification service can be chosen at will by the provider. The word "strong", e. g., can be used by various providers with a differing meanings.
The words "qualified", "accredited" and "secure electronic signature", however, are defined specifically in the Signatures Act.
RUNDFUNK UND TELEKOM
REGULIERUNGS-GMBH
Austrian Regulatory Authority for Broadcasting and Telecommunications
Mariahilfer Straße 77-79, 1060 Vienna, Austria
tel.: +43 1 58058-0