Use Case 5: View rental history

Rational

Main flow	Question: what class ...	Answer	Justification
1. The renter requests to view the rental history.	...interacts with the user?	ViewRentalHistoryPageUI	Pure Fabrication
	...coordinates the use case?	ViewRentalHistoryPageController	Controller
2. The system shows a list of simplified rental information.	...knows which user is logged in?	CurrentSession	Information Expert.
	...knows the rentals of the company?	RentalManager	Information Expert: the rental manager contains all the rentals.
	...knows which rental belongs to the user?	Rental	Information Expert: the rental has a reference to the renter (user).

Systematization

From the rational results that the conceptual classes promoted to software classes are:

• Rental
• AuthUser

Other identified software classes (e.g. Pure Fabrication):

• ViewRentalHistoryPageUI
• ViewRentalHistoryPageController
• CurrentSession
• RentalManager

Sequence diagram

Class diagram