Understand
Begin with the situation, not the solution.
Describe the current activity in plain language. Who is involved? What is difficult? Where does a request, a decision, or a piece of information get stuck?
A useful problem statement identifies a need without prescribing a product. It also makes the constraints visible: available information, existing tools, responsibilities, and the consequences of a mistake.
A focused question, a description of the current situation, and a first list of assumptions.