An IT system development for a system such as ETIAS goes far beyond a physical layout but also encompasses other topics such as functional or logical architectures as well as data model which are all an inherent part of the development of the system.
Razvoj sistema IT za sistem, kot je ETIAS, ni omejen le na fizično zasnovo, temveč zajema tudi druga področja, kot sta funkcionalna ali logična arhitektura in podatkovni model, ki sta sestavna dela razvoja sistema.