Use-Case Report

Use-Case
*Login*	This is the process by which the user enters the system with a user name and password. There are two levels of security, named levels 1 and 2.
	Flow of Events:	Flow 1: The user correctly enters both user name and password, allowing them access to the system. Flow 2: The user mistypes the user name and/or password. They are requested to re-enter the password at which time the user enters the proper password and is allowed to enter the system. Flow 3: The user does not enter a valid user name and/or password 3 times. At this time, the system notes the login failure in a security log and allows the user to try and access the system again.
*Edit*	This is the process by which the user exits from the system.
	Flow of Events:	Flow 1: The user clicks on the 'Exit' button and leaves the system. The user is logged out of the system at the same time.
*Generate Sales Report*	This function is only available after login by a level 1 user. It prints out a sales report based on the selection criteria specified by the user (e.g. dates, publication, customer).
	Flow of Events:	Flow 1: The user enters the correct search information and the search returns the queried data. Flow 2: The user enters valid search data but does not obtain the query results desired and so must change their search criteria. Flow 3: The user either enters insufficient or excessive information causing the system to return too many or no records, respectively.
*Generate Order Report*	This function is only available after login by a level 1 user. It prints out an order report based on the selection criteria specified by the user (e.g. dates, publisher).
	Flow of Events:	Flow 1: The user enters the correct search information and the search returns the queried data. Flow 2: The user enters valid search data but does not obtain the correct query results and so must change their search criteria. Flow 3: The user either enters insufficient or excessive information causing the system to return too many or no records, respectively.
*Add Customer*	This function is only available after login by a level 2 user. It allows the user to add a new customer (name and address) to the database, as well as subscribe the customer to a publication and suspend delivery of the publication to the customer while they are away.
	Flow of Events:	Flow 1: The user enters all customer information correctly resulting in the the customer record being successfully entered into the system. Flow 2: The user mistypes some customer information and, to correct it, has to enter the Edit Customer screen of the program to edit the record with the proper information. Flow 3: The user enters the information of a customer record already present in the system, so, the user is notified of the duplicate record.
*Delete Customer*	This function is only available after login by a level 2 user. It allows the user to delete an existing customer from the database.
	Flow of Events:	Flow 1: The user queries the correct customer and presses the delete button, at which time a dialog box appears to verify the command. The user clicks 'Ok' and the delete proceeds. Flow 2: The user queries the wrong customer and realizes their error when the dialog box appears and chooses 'Cancel', which prevents the deletion of the record. Flow 3: The user queries the wrong customer and chooses 'Ok' at the dialog box. They then must re-enter the customer's information in the Add Customer screen to replace the customer record they deleted.
*Edit Customer*	This function is only available after login by a level 2 user. It allows the user to edit an existing customer's information in the database (such as name and address as well as publication subscription and delivery suspension).
	Flow of Events:	Flow 1: The user correctly enters the new information and the customer is successfully edited. Flow 2: The user mistypes the customer's new information and must change it before leaving the Edit Customer screen. Flow 3: The user mistypes the customer's new information and does not realize their error. The user returns to the Edit Customer screen when they do realize the mistake.
*Customer Search*	This function is only available after login by a level 2 user. It allows the user to search for an existing customer based on the selection criteria entered (such as customer name, customer number, address, publication, etc.).
	Flow of Events:	Flow 1: The user enters the correct search information and the search returns the queried data. Flow 2: The user enters valid search data but does not get the required queried results, and so, must change their search criteria. Flow 3: The user either enters insufficient or excessive information causing the system to return too many or no records, respectively.
*Generate Delivery List*	This function is only available after login by a level 2 user. It allows the user to generate a delivery list of publications for each delivery route for a selected date.
	Flow of Events:	Flow 1: The user enters the correct date and route and receives the required information. Flow 2: The user enters the date and/or the route incorrectly and does not receive the required information. The error is corrected by the user allowing the correct information to be retreived. Flow 3: The user enters an invalid date or route. The system notifies the user of the error.
*Generate Customer Bills*	This function is only available after login by a level 2 user. It allows the user to generate a bill for a selected customer and month.
	Flow of Events:	Flow 1: The user queries the correct customer and generates the customer bill. Flow 2: The user queries the incorrect customer and generates an incorrect customer bill. Flow 3: The user attempts to query a customer who does not exist and the system. The systems alerts the user of the error.
*Select Publications*	This function is only available after login by a level 2 user. It allows the user to change which publications a customer receives.
	Flow of Events:	Flow 1: The user chooses the correct publication and customer so the change in records proceeds successfully. Flow 2: The user chooses an incorrect customer/publication selection. The customer calls to complain that they are receiving/not receiving a particular publication and the problem is corrected.
*Suspend Delivery*	This function is only available after login by a level 2 user. It allows the user to suspend delivery of their publications during the selected dates.
	Flow of Events:	Flow 1: The user enters the correct dates and the action is completed successfully. Flow 2: The user chooses the wrong dates and the customer must call to complain. Flow 3: The user chooses invalid dates, so, the system alerts the user of the error.

Actor
*Level 1 User*	This actor represents the manager or supervisor of the Level 2 Users. They can print reports that summarize sales or detail which publications need to be ordered.
*Level 2 User*	This actor represents the normal user of the system. They are responsible for managing customers (i.e. adding, removing, changing information) and printing the delivery lists for each delivery person.