I have a device which rotates on a stepper motor through a belt and pulley system. I would like to know both the positional accuracy and precision of this movement.
It is of my opinion that this should be determined by taking a large number of measurements to random angles to give a bell curve then using the offset of the mean from 0 error to define the positional accuracy and defining the precision of the movement as 3 sigma.
The rest of the office are of the opinion that accuracy is the range of errors when rotating to random points and precision is the range of errors when rotating to a determined point, away to a random point, then back to the determined point.
Is this just me applying my past experience in manufacturing to a problem that doesnt require it or is there merit in my method and everyone else is just specifying range, which is not what they really want?