Abstract: This article presents the Step-down user research system combining with several
parallel user research methods, and gets a deep understanding of users with this system in the
project of robotic chair/bed. The product’s initial function orientation and creative ideas are
fomed by translating the user need into product need. In this system, a new method of user
research is creatively put forward to get the latent demand more accurately using personas and
scenarios.

Key words: user research system, user need, product need, role of substitution, robotic
chair/bed