To communicate between GtK’s, the technical endpoints must be known. Twiin offers ZORG-AB as a service to find the technical endpoints of other GtK applications. These endpoints are registered in ZORG-AB by the Twiin governance. In this way Twiin makes addressing information public to all GtK applications. However, the use of ZORG-AB is not requirement, and alternate means of obtaining addressing information is permitted. It is not mandatory to use the ZORG-AB interfaces, it is mandatory for the GtK management organisations to inform Twiin about (changes in) the addressing information.
To search for GtK endpoints with ZORG-AB, you can use the Get_Organization and Get_Endpoint transactions.
When additional internal routing is necessary, the Twiin Participant in question is responsible to communicate the relevant information to the other participants until Twiin can adopt the technical agreement on routing and addressing, which is currently under development.