PROBLEM STRUCTURE
The problem structuring step in decision analysis includes framing, as well as certain parts of alternatives, information, and preferences. In other words, it includes everything before the modeling phase.
The decision analysis cycle, with selected tools displayed for each part of the cycle and with the problem structuring part highlighted (Stanford University, 2018)
Any decision analysis process begins with DECISION DECLARATION as, to begin with, there needs to be a problem to be solved.