Hi @Mark_Bailey
Thank you very much for your answer.
If I understand correctly, the Measurement System Analysis platform allows to study an experiment and estimate the part of variability due to variability between measurements and variability between samples.
If I have a rough idea of these values and if I want to conduct a prospective analysis I can use the Sample SIze and Power Platform using the formula that you indicate.
Just to give a dummy example. Let's say that I have samples with 10 objects and each object is measured 3 times. The variance between objects is around 2 and the variance between measurements is around 1.
In that case the global Standard deviation is Y = sqrt (2 + 1/3) =1.53
I will use this value in the Sample Size and Power platform for the field Std Dev and 60 for the sample size. Am I right?