The work of the first stage consists in the analysis and approving of the document - the statement of the problem. A problem statement defines the problem faced and also identifies what the solution would look like.
It can be seen as the starting point for coming up with a product vision. In defining the problem statement draft, be sure to include these elements:
The problem: what is the problem arised?
What it affects: indicate the entities affected by the problem.
Impact: what is the impact or consequence of the problem?
Solution: include your recommendation for solving the problem.