Picture 1, "Less Visual Fixation":
I think it is wrong, if I'm processing simple (or repeating) stack of windows I do not read all labels (at least after a few similar tasks), I see OK button and I click it.
Picture 3, "Maps to the expected button functions"
This is also wrong, there are specific labels for actions on the picture - Back/Next, Backward/Forward, Return/Continue.
Picture 4, "Gives users a more efficient task flow"
I agree with eyesight map (left to right, up to down) and this is precisely why OK should be on the left side - so we don't need to read further.
I confess that I'm Windows biased a little. But the author is biased just the same, only he is using Mac :) .
Picture 3, "Maps to the expected button functions" This is also wrong, there are specific labels for actions on the picture - Back/Next, Backward/Forward, Return/Continue.
Picture 4, "Gives users a more efficient task flow" I agree with eyesight map (left to right, up to down) and this is precisely why OK should be on the left side - so we don't need to read further.
I confess that I'm Windows biased a little. But the author is biased just the same, only he is using Mac :) .