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The following task has a new comment added:

FS#238 - Improve terminology in Newton output / parameters
User who did this - Bernd Flemisch (bernd)

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While I definitely like the physical interpretation, I would prefer generic 
names. At least for the general NewtonSolver/Controller, since it has to deal 
with mass balances as well as with energy and momentum balances. 

I would propose the following changes in nomenclature:

Properties/Parameters (all in the group "Newton"):
AbsTolerance -> ResidualReduction: Expresses exactly what it does and is 
consistent with the name in the LinearSolver
EnableAbsoluteCriterion -> EnableResidualCriterion
RelTolerance -> MaxRelativeShift: the word "shift" is a very meaningful name
EnableRelativeCriterion -> EnableShiftCriterion
SatisfyAbsAndRel -> SatisfyResidualAndShiftCriterion

Output:
"relative error" -> "maximum relative shift"
"absolute error" -> "residual reduction"

If we like, we can still define model-dedicated NewtonControllers that could 
use parameter names that are closer to the physics and maybe deal with 
different tolerances for different quantities like pressure, saturations. 
temperature and so on.

Please provide your opinions.

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