We've long had established methods for evaluating user behaviour when it comes to practical, goal-oriented applications. But what happens if we go beyond that? When we attempt to build systems, environments or tools not meant for completing tasks - but for facilitating creativity or artistic self-expression? Through an exploration of her past academic work and how it relates to her current work in THE industry, Dalia will share some practical lessons and workarounds for anyone looking to design user experiences that push the bounds of what can readily be measured.