The [Login page] should display as the following (0.5 point):
Username:
Password:
Login
User fills in [Username] and [Password] and then clicks login. The system then checks the above two information in the [Account] table. The system displays "Login successful!" if the Username and Password are correct. Otherwise, the system displays "Login Failed." (0.5 point).
When the user accessed to the [Insert Page]:
➤ The system displays "access denied" if the user did not login to the system (1 points).
➤ Otherwise, the system will display [Insert Page] to allow the user to add a new Sale Order.
Each sale order is created by a logged account. Below figure illustrates an example of sale order with id = 9981. It consists of 3 sale order details (data from table [SaleOrderProduct]).
