Following 8D report, PDCA (Plan-Do-Check-Act) and DMAIC from Six Sigma we have defined this approach, combined with our experience:

I = Input parameters

define challenge or situation to improve

define framework conditions

define improvement team and ressources

N = Null-status

primary survey

collect data of initial situation

make Null-status comparable

T = Targets

analysis of present situation

define targets 

E = evaluation and actions 

finding solutions and perspectives

defining actions

decision of improvement team
test actions

LL = Lessions learned

analysis of new situation 
analysis of change

supporting improvements / refinements / upgrades

E = Evaluation + corrective actions

comparative and multidisciplinery analysis

identifying deviations

corrective action when needed

C = Create standards

standardization
change management

training employees

T = Type on paper

documentation

final report

transfer to management

We live process optimization with INTELLECT.