This week’s assignment was all about the difference between qualitative and quantitative usability metrics. When do you use one over the other? What works better? What about subjective vs. objective measurements? And what are the benefits and limitations of each of the different methods for a given scenario? In Jakob Nielsen’s article on usability metrics, he mentions that qualitative measures provide more bang for the buck at understanding the low hanging usability fruit. But the investment in quantitative metrics can be beneficial in its use to track progress across iterations.

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