Some components of the method were original ideas from experts in particular areas, although most of them were tried and tested but had not previously been brought together as a cohesive approach.
Baadhi ya vipengele ya njia walikuwa mawazo ya awali kutoka kwa wataalam katika maeneo fulani, ingawa wengi wao walikuwa na misukosuko lakini alikuwa na si awali imekuwa kuletwa pamoja kama mbinu kushikamana.