Inscrivez-vous ou connectez-vous pour rejoindre votre communauté professionnelle.
common sense
market research
appointing professionals
trial & error
there are so many ways to learn a subject.
benchmarking, education, their own errors and success
They are to face the realities, naturally they are forced to learn it by hook or crook--method is immaterial--they learn it for themselves and also engage professional expertise to explore all possibilities for the adequacy of their requirements and growth plans.
