broadband networks — wired and wireless access networks, ancillary infrastructure and core networks capable of delivering very high speed connectivity (f)

building blocks — basic digital service infrastructures, which are key enablers to be reused in more complex digital services infrastructures (c)

core service platforms — central hubs of digital service infrastructures aiming to ensure trans-European connectivity, access and interoperability, and which are open to Member States and may be open to other entities (d)

digital service infrastructures — infrastructures which enable networked services to be delivered electronically, typically over the internet, providing trans-European interoperable services of common interest for citizens, businesses and/or public authorities, and which are composed of core service platforms and generic services (b)

generic services — gateway services linking one or more national infrastructure(s) to core service platform(s) (e)

horizontal actions — studies and programme support actions as defined in points (6) and (7) of Article 2 of Regulation (EU) No 1316/2013, respectively (g)

telecommunications infrastructure — broadband networks and digital service infrastructures (a)