SecuTix allows two systems to be connected in inter-institution. One institution sells tickets for the other.
(a reference in french can be found here)
In those cases, for a given product, one institution is the Manager, the other one the Reseller.
Let us suppose that we have two institutions, MANAG (the Manager) and RESELL (the reseller).
In case MANAG is using SwissPass, they can allow the client to use either SwissPass card or SwissPass technical tag to go though Access Control (a reference article here)
An improvement has been implemented was: if the RESELL is also use SwissPass, then, both SwissPass card or SwissPass technical tag are merged and when integrating back the tickets to MANAG.
Example: