Questions (5 marks)

a. Identify different symbols used in above sequence diagram and list them.

b. Identify two separate use cases represented in above diagram. Name them.

c. Explain the first use case (provided in top rectangle in diagram) in your own words based on the messages provided.

Consider the sequence diagram given below for the use case 'Record a book order' and answer the following questions. Record book order System buyer 1 findBook (title or author or ISBN) Find Book Use Case 1 listOfMatches (title, author, ...) 1 addToCart (ISBN) L--- confirmation for beach book desired checkout() (account exists] display Accountinfo (name, cc, ...) (no account) displayAccount Setup() (no account) enter Accountinfo (name, billingAddress, CC, ..) Open new account use case newAccountConfirmation confirmPurchase() EmailToSeller (purchaseinfo, purchaserinfo) 1 email server Questions