Like in the image make A Fully developed use case descriptions: for the use case for making a reservation over the web for a car sharing system IS.

Use case name: Create customer account. Scenario: Create online customer account. Triggering event: New customer wants to set up account online. Brief description: Online customer creates customer account by entering basic information and then following up with one or more addresses and a credit or debit card. Actors: Customer. Related use cases: Might be invoked by the Check out shopping cart use case. Stakeholders: Accounting, Marketing, Sales. Preconditions: Customer account subsystem must be available. Credit/debit authorization services must be available. Postconditions: Customer must be created and saved. One or more Addresses must be created and saved. Credit/debit card information must be validated. Account must be created and saved. Address and Account must be associated with Customer. Flow of activities: Actor System 1. Customer indicates desire to 1.1 System creates a new customer. create customer account and 1.2 System prompts for customer enters basic customer information. addresses. 2. Customer enters one or more 2.1 System creates addresses. addresses. 2.2 System prompts for credit/debit card. 3. Customer enters credit/debit card 3.1 System creates account. information. 3.2 System verifies authorization for credit/debit card. 3.3 System associates customer, address, and account. 3.4 System returns valid customer account details. Exception 1.1 Basic customer data are incomplete. conditions: 2.1 The address isn't valid. 3.2 Credit/debit information isn't valid