If you use the named-user license model for Spotfire Server users, then the number of named users is equal to the number of client licenses (Analyst + Business Author + Consumer) you have assigned.

The number of named user licenses for Spotfire Automation Services and Spotfire Statistics Services is equal to the number of named users you have assigned to the Spotfire Servers these services are connected to.

You do not need separate named-user licenses for the data function services; named-user licenses for Spotfire Statistics Services cover all of the Statistics engine services.