interoperability constituent
as defined in Directive (EU) 2019/520 of the European Parliament and of the Council of 19…, Article 2, point (13) (Definitions)
any elementary component, group of components, subassembly or complete assembly of equipment incorporated or intended to be incorporated into EETS upon which the interoperability of the service depends directly or indirectly, including both tangible objects and intangible objects such as software;