Jiaqi UML use case diagram and use case description
- 1. Star Car Rental System
- 2. USE CASE UC1 View cars’ information Goal in Context A customer wants to request detailed information about cars, such as quotation, vehicle type, vehicle makes, and vehicle models. Scope & Level Star Car Rental System, Secondary Task Preconditions None Postconditions The customer makes a decision about whether to rent cars or not. Primary, Secondary Actors Customer, Staff : Primary Trigger The customer calls Star Car Rental company or logs in the website of Star Car Rental company. DESCRIPTION Step Action 1 The customer calls Star Car Rental company to communicate with the staff or logs in the website of Star Car Rental company. 2 The customer asks staff car information by phone or searches car information on the company’s website. 3 Staff tells the customer about details of cars by phone or website presents the results (see OI 1). 4 The customer asks the quotation for the car by phone or searches the quotation for the car on the internet. 5 Staff tells the quotation for the car by phone or website presents the quotation (See OI 2). 6 The customer receives the results. EXTENSIONS Step Branching Action 1a 1 Star Car Rental company does not answer the phone when the customer calls the company. 1 The customer does not get information about renting car. 2 The customer logs on the website to search the information. 2 The customer cannot access to the internet. 1 The customer calls Star Car Rental company. 2 The customer cannot get information. 3a The customer is not satisfied with the car. Process ends. 5a The customer is not satisfied with the quotation. Process ends.
- 3. OTHER INFORMATION 1 The company rents cars on basis of car model and standard rate (daily, weekly, weekend, additional kilometer charge). The first 200km are included in charges for every vehicle. All the cars are four door models with air conditioning and automatic transmission. The categories are Economy(E), Star(B), Midsize(M), Full Size(F), Passenger Van(V), SUV(S). 2 Rate Class Daily Charge Weekly Charge Weekend Charge Additional Kilometre Charge Economy(E) $34.99 $149.99 $39.99 $0.20 Star(B) $39.99 $169.99 $44.99 $0.22 Midsize(M) $44.99 $189.99 $49.99 $0.25 Full Size(F) $49.99 $209.99 $54.99 $0.27 Passenger Van(V) $59.88 $212.99 $58.99 $0.29 SUV(S) $70.99 $220.99 $70.99 $0.35 REPORTS None UNRESOLVED ISSUES None
- 4. USE CASE UC2 Book cars Goal in Context A customer wants to rent a car to drive. Scope & Level Star Car Rental System, Primary Task Preconditions The customer gains suitable car information and the quotation for the car. Postconditions The customer completes entering information. Primary, Secondary Actors Staff, Customer : Primary Bank, Insurance Company : Secondary Trigger The customer gains satisfying information of the car. DESCRIPTION Step Action 1 The customer gains satisfying information of the car. 2 System asks customer to supply credit card details. 3 The customer supplies credit card information. 4 The details are validated. 5 System mails or emails the confirmation of arrangement to the customer. 6 The customer enters the personal information and payment information. 7 The customer searches the vehicle types and prices for booking (See OI 1). 8 The customer enters pick-up and drop-off location, dates and their age. 9 The customer gets quote for renting a car. 10 The customer is given other important information as well as insurance details and pick up instructions (See OI 2). 11 Manager views booking information. EXTENSIONS Step Branching Action 3a The customer enters the wrong payment information. 1 The customer will be informed to re-enter the payment information. 2 The customer cannot make a booking. 4a The customer’s credit card information cannot be validated by bank. 1 System informs the customer. 2 Booking is not successful.
- 5. OTHER INFORMATION 1 Rate Class Daily Charge Weekly Charge Weekend Charge Additional Kilometre Charge Economy(E) $34.99 $149.99 $39.99 $0.20 Star(B) $39.99 $169.99 $44.99 $0.22 Midsize(M) $44.99 $189.99 $49.99 $0.25 Full Size(F) $49.99 $209.99 $54.99 $0.27 Passenger Van(V) $59.88 $212.99 $58.99 $0.29 SUV(S) $70.99 $220.99 $70.99 $0.35 2 Customer is given other important information such as age restrictions, fuel conditions. REPORTS None UNRESOLVED ISSUES None
- 6. USE CASE UC3 Respond booking information Goal in Context The system makes a confirmation for booking cars. Scope & Level Star Car Rental System Secondary Task Preconditions A customer has already completed the booking process Postconditions Staff confirms the booking information. Actors Staff, Customer: Primary Trigger The system checks the completeness and correctness of the customer’s data entry. DESCRIPTION Step Action 1 The system checks the completeness and correctness of the customer’s personal information and payment information (See OI 1). 2 The system confirms the booking with a rental confirmation number. 3 System sends an e-mail to the customer. 4 The customer receives the e-mail with rental number. 5 The customer uses the rental number and last name to view the booking information. EXTENSIONS Step Branching Action 1a The customer’s personal information is not completed. 1 The booking is not successful. 2 The system will send an e-mail to customer. 1b The customer’s payment information is not corrected. 1 The booking is not successful. 2 The system will send an e-mail to customer. 5a The customer changes or cancels the car booking. OTHER INFORMATION 1 Personal information includes name, address, telephone number and e-mail address. Payment information is credit card details.
- 7. REPORTS None UNRESOLVED ISSUES None
- 8. USE CASE UC4 Pick up car Goal in Context A customer drives the car away. Scope & Level Star Car Rental System Secondary Task Preconditions A customer books the car successfully. Postconditions A customer drives the car away. Actors Customer, Staff: Primary Trigger The customer arrives at the pick-up location. DESCRIPTION Step Action 1 The customer arrives at the pick-up location. 2 The customer signs the rental agreement (see OI 1,2). 3 Staff confirms the rental agreement that the customer signs. 4 Staff gives the key of the car to the customer. 5 The customer drives the car away. EXTENSIONS Step Branching Action 2a The customer renting the car is not the driver, and there are many drivers. For each driver, the following information needs to be captured: full name, birth date, driver’s license number and state of issue of driver’s license. 2b 1 The customer accepts damage waiver which is $8.99 per day. There is no charge for physical damage to the vehicle. 2 The customer does not accept damage waiver. The customer needs to pay a $1000.00 deductible applies to body damage. OTHER INFORMATION 1 A rental agreement includes an agreement number, the customer’s name, type of rate, car identification, car price category, the date time mileage, expected date and time of return and damage waiver. 2 Information about the third party who may be paying the bill also needs to be captured. REPORTS None UNRESOLVED ISSUES None
- 9. USE CASE UC5 Return cars Goal in Context A customer returns the car to the company. Scope & Level Star Car Rental System, Primary Task. Preconditions The customer does not need to use the car any longer. Postconditions The company receives the car, and the car is ready to be rented again. Actors Staff ,Customer : Primary Trigger The customer arrives at the drop-off location. DESCRIPTION Step Action 1 The customer arrives at the drop-off location. 2 Staff inspects the car’s tank. 3 Staff records the date, time and mileage. 4 Staff inspects for damage. 5 Staff inspects to determine the need of minor maintenance. 6 The car passes inspection. 7 The car sent to a car wash and placed to be rent again. EXTENSIONS Step Branching Action 2a The tank is not full. 1 The customer refuels the vehicle. 2 Staff refuels the vehicle and the customer pays for it. 3a The customer return car late and pays fines (UC6). 4a The car has been damaged. 1 The customer pays the cost for repairing. 2 There is no charge for physical damage. 5a The car needs minor maintenance. The car is sent to the shop for needed repairs and maintenance. OTHER INFORMATION None REPORTS None
- 11. USE CASE UC6 Make payment Goal in Context Star Car Rental company makes profits. Scope & Level Start Car Rental System, Primary Task. Preconditions A customer has returned cars. Postconditions The customer pays the total charge to the company. Actors Customer, Staff : Primary Bank : Secondary Trigger The customer has returned the car. DESCRIPTION Step Action 1 The customer has returned the car. 2 The company calculates the total charge (OI1, OI3). 3 The company mails the bill to the customer. 4 The customer receives the bill. 5 The customer pays the total charge by cash or credit card. 6 The company receives the money. EXTENSIONS Step Branching Action 2a The customer accepts the collision damage waiver. 2b The customer pays a $1000.00 deposit to body damage. 1 The car has been damaged. The deposit is used to pay for repairing. 2 The car has not been damaged. The deposit is returned to the customer. 3a The company gives the bill to customer. 4a The customer has fines outstanding: 1 The customer pays fines for returning late. 2 The customer pays charge for repairing if he/she did not receive the collision damage waiver (OI2). 4b The car has not been damaged. The customer receives the $1000.00 deposit. 5a 1 The company receives the cash from the customer. 2 The company receives the money transferred from bank. OTHER INFORMATION 1 The damage waiver is $8.99 per day. 2 The customer declines the damage waiver. An insurance policy with a $1000.00 deductible applies to body damage.