loxosceles;
I would like assurance that the input data traces from the FDR are raw inputs, and are never altered at all by the computer, in any situation. If they can be altered, then the PF's input traces are useless, because it could be PF error, or it could be computer error that is indistinguishable from PF error.
The parameter for side stick position reports the side stick position, unmodified by any other inputs.
A slight confusion may occur if one considers that, for example, an aileron parameter will indicate the position of that surface, as controlled by the FCPCs [flight control primary computers] which are controlled in turn either by the side stick in manual flight or the EFCS [electronic flight control system] in autoflight. But the parameter still indicates actual "position" of the control surface.
Aircraft system, aircraft state and environmental parameters' design and mode of operating are thoroughly understood such that any untoward behaviours of a system are almost certainly going to be known. This was evident in the QF72 pitch incident.