Simplified Planning Tool

Software tool which allows the comparison of different water and sanitation systems based on their net present value. Simplified means that the software tool is based on numbers of simplifying assumptions, which allow the planner to use the SPT with the limited amount of data available at the pre-planning stage of a project. Due to the resulting error the water and sanitation systems which will be compared using the SPT have to be fundamentally different, as minor differences will not result in a significantly different NPV.