Specifica

• le persone hanno CF, cognome ed età
• gli uomini anche la posizione militare
• gli impiegati hanno lo stipendio e possono essere segretari, direttori o progettisti (un progettista può essere anche responsabile di progetto)
• gli studenti (che non possono essere impiegati) un numero di matricola
• esistono persone che non sono né impiegati né studenti (ma i dettagli non ci interessano)

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Documentazione associata agli schemi concettuali

• dizionario dei dati
  • entità
  • associazioni
• vincoli non esprimibili

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Dizionario dei dati (entità)

Dizionario dei dati (associazioni)

Vincoli non esprimibili