EN
The article presents fundamental rules of the systemic thinking in decision making and it proposes a unified problem solving procedure. The Partitioning Method is presented and it is shown how that method can be used in discovering system structure or problems. The problem structure is a critical factor in solving them. Special attention is paid to the variables described as Stock-and-Flow which absorbs the problems' dynamics and determine its feedback structure. The analysis is presented as part of the Dynamic Decision Making theory.