Finally, UCD’s focus on “successful” experiences obscures possibilities that lie outside of predetermined success metrics, preventing us from designing for uncertainty, failure, or experimentation in the ways we might.
There is a whole set of second-order experiences that we don’t actively design, but happen as a consequence of what we design. Which means that there’s the potential for a great deal of positive change that can be created simply by shifting how we look and what we look at.
First, by focusing on the user, UCD has a tendency to obscure the experiences of other participants in the systems we design — those who aren’t end users, per se, but who interact with or are affected by the system.