analysis Problem tree analysis is a structured approach used to analyse problems and define objectives. It is a tool used during project planning and involves constructing a problem tree to identify potential causes of the problem and potential solutions. It does this by connecting potential causes of the problem with potential solutions. For example, if the problem is the lack of clean drinking water in a village, the problem tree analysis could identify potential causes such as: • Over extraction of ground water • Poor infrastructure • Pollution from industry From these causes, the problem tree analysis could identify potential solutions such as: • Introducing rainwater harvesting • Rebuilding infrastructure • Regulating industry Problem tree analysis can be used to systematically identify the cause of a problem and to identify potential solutions. This approach can be used to identify underlying causes of a problem, to develop specific objectives and to develop a plan to achieve these objectives.