How does NeTEx compare with NOPTIS?

The Transmodel based Nordic Public Transport Interface Standard (NOPTIS) provides a consistent set of XML-exchange protocols covering both planned and real time aspects. One of these exchange protocols is the Data Input Interface (NOPTIS DII). This exchange protocol is optimised to transfer version-managed information concerning Network, Timetable, Vehicle Schedule, Services and other data to a PTA integrator system and is used extensively in Sweden and Denmark. NOPTIS DII was a significant input to NeTEx. There exists a mapping between NeTEx and NOPTIS DII covering the Calendar, Timetable and Vehicle Schedule aspects showing how to use NeTEx in a way that supports parallel partial data deliveries as in NOPTIS.