From a technical point of view the "OX Hosting Edition" is comparable with the
"OX Server Edition".
But OX/univention did not integrate the multi-tenancy in the integration package because of the some different reasons.
OX would work in a multi-tenancy envoirnment with only one UCS system but
* a lot of other services will have problem with this "multi-tenancy-scenario"
* different companies wouls use one kerberos domain,
* what will happen if you add two users with same "username" from two different companies).
* if you extend the LDAP schema for one customer it would also appear for the other customers ...
So it was a with conscious decision not to integrate this feature
In a cloud / hosting environment we recommend a separate virtual UCS machine for one customer.
From our point of view (as a manufacturer) one of the best the solution would be a scenario
with separate systems or virtual machines (for each customer) and a higher-ranking / superior UCS systems
that contains a catalog of the different separate customer environments (comparable to a "Directory Forest" of a large competitor)