SAF-T is an international standard for electronic tax data exchange. Developed by OECD for reliable accounting data exchange. Uses XML format but allows revenue bodies to choose their own implementation
Logbook originated from ship's log, documenting maritime operations and navigation. Used to record states and conditions of complex machines and personnel. Can be standardized within certain organizations or industries
e-Ledger enables electronic recording of tax and commercial law ledgers. Companies must have minimum 25M TL revenue for mineral oil license holders. Companies must have minimum 10M TL revenue for certain goods producers. Only summary certificate is sent to Revenue Administration