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Perchè Sistema

Nell’osservazione di fenomeni del mondo reale, specie se complessi, si è soliti utilizzare il concetto di sistema per descriverne il comportamento, in quanto il funzionamento del tutto può essere spiegato solo attraverso il comportamento delle parti.
Un sistema viene definito con un insieme anche complesso di elementi (sottosistemi) di natura differente che interagiscono tra loro in modo dinamico e comunque finalizzato al arggiungimento di certi obiettivi.
Ogni sistema è definito quando ci sono:
1. le parti che lo compongono;
2. le correlazioni tra esse;
3. le finalità del sistema.