There are many different ways to create an influence diagram. They can be created using pen and paper, white boarded, or, more efficiently created by diagramming software.
Here are the basic steps:
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- Start your tree. Draw a rectangle near the top-left corner of the page. This will be the first 'node' or shape. In this rectangle write the first question or a criterion that leads to a decision.
- Add to the process. Referencing the decision tree, add more shapes to the page as needed, labeling each. A series of decisions, functions, and chances should lead to an objective.
- Add connectors. Use a combination of straight or angled lines between all related boxes with arrowheads indicating the flow of influence. Each box should be connected to at least one line.