Identify all foreign keys in relations you identified in Question 3 and justify your decisions.Draw the preliminary class diagram for the system described in the following requirements.

Draw the preliminary class diagram for the system described in the following requirements.

Question Two
Redraw the following class diagram into the equivalent E-R diagram.

Question Three
Convert the following E-R diagram, which represent a manufacturing system into relations. Make sure to specify all the primary keys.

Question Four
Identify all foreign keys in relations you identified in Question 3 and justify your decisions.

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