
2. With reference to question 1, and assuming that none of the enterprise rules are
known to you:
(a) can you deduce any of the enterprise rules merely by inspecting the table
occurrence that you have written?
(b) if you are told that a bookNo uniquely identifies a book, which of the other
enterprise rules can you deduce from an inspection of the table? (3 min)
3. As part of a fact finding investigation you are told that each employee has a unique
employeeNo. Does this mean that:
(a) an employee has only one employeeNo;
(b) no two employees share the same employeeNo;
(c) all employees have the same employeeNo;
(d) some combination of the above? (5 min)