Reference no: EM131102360
Consider the following data requirements for a banking application.
A bank account has an account number, an opening date and a balance. There are two types of accounts: checking and saving. An account must be at least either saving or checking, while some accounts can be both saving and checking. A saving account has an interest rate while a checking account has a minimum deposit amount.
An account owner has an owner id and a start date. An owner may own several accounts, while an account can have several owners. An owner always owns at least one account, while not every account has an owner.
A check has a check number, which is unique only in the same checking account. A check also has a date and an amount. A check must belong to one and only one checking account while a check account may have many checks.
There are two categories of owners: person and company. A person has a first name, a last name, and an SSN. A company has a name, a tax id and an address. Every company is an owner, while not every person is an owner.
A bank employee has an SSN, a name (first and last) and a start date.
Some bank employees are account owners. Each employee-owner has a bonus interest rate.
Draw an EER diagram based on the requirements.
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