I am sorry I don’t understand much. Nomenclature differs between subjects.

In “software engineering”: is it so that if you calculate your result from a complex computer model so that if you would repeat the “experiment” you would get exactly the same result?

Your “A, B and C”, I would call them variables, are they experimental settings that can have: a “bad” value, a middle value and a “good” value. So if each has three levels like: 1, 2, 3 then they could be coded like these experiments:

and so on 3*3*3=27 combinations.

The D variable is that what you calculate or measure, your response variable= dependent variable.

Parameters in statistics are things like mu and sigma for populations mean and standard deviation and alpha and beta in linear regression. Let us use these terms here. Please don’t talk about samples. I obviously just confuse. Let us say number or observations.