[erlang-questions] Basic question

[Bob Cowdery]

Hi

Firstly, sorry if this is a really stupid question but I've not written any FP style programs yet. I am unsure how to handle data structures in Erlang. If I have say a process responsible for registrations, and that process is required to maintain a list of registrations how does it hold that list across calls. The only mention I can find of doing such things is the process dictionary. Is this the right way or am I completely mising some fundamental point here.

Thanks
Bob