Both GSSE and GSEP processes implement only the Planning phase of the
Sustainability Management Process. GSEP explicitly defines different sequential
phases, including a specialized Green Analysis phase, as well as the possibility of
having several iterations. It is necessary to plan the number of iterations and to
schedule different activities connected to the Green Analysis phase. The same is
true for GSSE, where the Reviews and Previews have to be scheduled after
two-thirds of an iteration or phase. More specifically, the Sustainability Executive
is responsible for organizing the sustainability-centric activities, which obviously
include time planning as well as resource allocation. For the other phases of the
reference process, the Preliminary phase, Monitoring phase, and Supplier Sustainability
Control, no equivalents could be spotted in either GSEP or in GSSE.