Thanks for your interest in Talapas. We require that every user belong to a group headed by a UO PI, we call these group Principal Investigator Research Groups (PIRGs). PIs are responsible for their PIRG members’ activity on the system (i.e. they have the authority to revoke access), and are the owner of all data belonging to the PIRG. When we eventually start charging for use of the system (no date has been set and we will give ample warning before any charges are incurred) the PI will be financially responsible for use of the system by their PIRG.