You’ve raised an interesting question about the diagrams. For all of the key ones (DRMC x 2 versions; DRR x 2 versions; PMC; DRM Planning diagram), they’ve all been developed over the past 12 years or so, as an attempt to represent diagrammatically key aspects of DRM and project management. On one hand, they represent an ideal (indeed almost ultimate) participatory process…whilst I originally thought up the designs, they’ve been modified as a result mainly from DRM and PPM students. One example is the DRR diagram, where the suggestion for good governance being in a circle surrounded by those four other components, was suggested by a PNG student (actually working for a bank) in Port Moresby. The challenge is for the diagrams to develop more ‘traction’ and become increasingly widely accepted. Whilst these diagrams are incorporated in the Charles Sturt University (CSU) emergency management program I teach in, there’s still a long way to go. ultimately for any diagram, if it’s useful, keep it. If it’s no good, either modify it or discard it….