This action is a culmination of the previous two actions; defining the problem to solve and understanding who you will solve it for.
The problem may have shifted from the issue or opportunity you first identified at the start of the process. This shift may have occurred due to market insights you uncovered or narrowing down from a broad issue to the core problem. It is also important to be clear on who you are solving the problem for; this should be the target participants and/or the key delivery channels identified in the previous step.
Articulating a clear problem statement keeps you grounded in the value you can provide and this should be your design approach north star.
Questions to ask
Methods to consider for this action
Output
The problem you are trying to solve and for who (i.e. target participant/delivery channel)