Problem Tree Diagram. Lfa is used in many development and aid agencies due to its value in planning monitoring and evaluating projects. The tree provides a visual structure for the analysis.
This can be quite broad œ the problem tree will help break it down œ or it can be more focused œ in which case the output will also be more detailed. It is a graphical bifurcation of problems to find the root cause and solutions. The problem tree is a visual method of analysing a problem.
A diagram is constructed separately for each high priority factor.
The tree maps the links between the main issue and its resulting problems as well as its root causes helping to find a solution in a structured way. The tree diagram is complete now lets calculate the overall probabilities. Each branch is labelled at the end with its outcome and the probability is written alongside the line. A trunk roots and branches.