system requirement

Bonitasoft System Requirement for production environment

Hi everybody I understand that in the documentation there is already information about the H/S requirements and it even give this message "The hardware recommended for Bonita BPM Platform is strongly dependent on your environment and processes (number of processes instances, number of current users, operations and complexity...)." which is totally correct but my question is, exist any kind of metric or measure that I can use to determine the H/S requirements given x quantity of process, users etc...?