Identify user needs
"Re-engineering a product with functional analysis: preliminary work and stages of this tool

This is the crucial stage of the study. The entire functional analysis (FA), and everything that follows from it, is based on what you remember at this point.

It's vital to fully understand what the user wants, with all its nuances, unspoken meanings, implicit notions or notions linked to the field of application, and so on.

Don't forget to integrate the notion of regulations, standards and laws right from the start. They are not part of the customer's needs. Your product may not be feasible in France for legal reasons, but only in Germany.