Straight to the point here: sorry, that's the wrong question. Not necessarily because there isn't some sort of possible hierarchy between the two. I don't believe anyone in their right mind would argue against efficacy being the ultimate goal in a (digital) product development context. Meaning that without that being the right thing, solving the right problem, there isn't much else to talk about!
Efficiency or Efficacy: what would you choose?
Efficiency or Efficacy: what would you…
Efficiency or Efficacy: what would you choose?
Straight to the point here: sorry, that's the wrong question. Not necessarily because there isn't some sort of possible hierarchy between the two. I don't believe anyone in their right mind would argue against efficacy being the ultimate goal in a (digital) product development context. Meaning that without that being the right thing, solving the right problem, there isn't much else to talk about!