TITLE: Commission Delegated Regulation (EU) 2018/389 of 27 November 2017 supplementing Directive (EU) 2015/2366 of the European Parliament and of the Council with regard to regulatory technical standards for strong customer authentication and common and secure open standards of communication DEFINITION: This ABB is a Business Agnostic European Legal Act which lays down rules on how electronic payment transactions and online banking must be performed in future with the intention to make payment transactions and online banking more secure. Source: https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=celex%3A32018R0389#:~:text=Commission%20Delegated%20Regulation%20(EU)%202018,(Text%20with%20EEA%20relevance.%20) INTEROPERABILITY SALIENCY: IoP Dimension: Governance IoP The Non-binding Instrument ABB is a key interoperability enabler as a specialisation of the Legal Act.