The key purpose of the 2000-2001 project was to move the PPT discussion down to practical analysis of actual work in the field. But at the same time, it needed to draw the analysis and findings back up to the level of generalisations and policy level, to develop international analysis of PPT. The primary aim of the case studies was not to provide recommendations for implementers at the local level (useful by-product as they may have been). It was to learn from the case studies for wider discussion of PPT  approaches.