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Software Engineering CS 443 - Homework 20 marks) Question 1 (8 marks): Have the following code: a) (4 marks) Draw the control flow graph (CFG) b) (4 marks) List feasible paths while (xs 10) if x < 5 Then y + x + 1 else EndII . x + x +1 Question 27 marks): show how messages are displayed in a sequence diagram that represents a borrowing subsystem in a library management system which a library member applies to borrow a book by the following process 1. The member asks the librarian to borrow a book 2. The librarian checks about the status of the member using a temporary program and waits for the response. 3. The librarian makes a query on the DB system and checks whether the book is available and waits for response. 4. The librarian receives a response from the DB system and sends a message to the member. 5. The member borrow the book after he/she pays the needed fees. 6. The librarian closes the temporary program. 7. The DB system updates itself. Question 3 (5 marks): do good packaging for the following class diagram with equally package size. А D

Answer 1

x=1 x<=10 True x<5 True False y=x2 +1 y=x2-1 X=x+1

Library Book Borrow Member Librarian Database Checks for information Request for book Receiver info of query regarding book | - Passes info to member - - - Pays fees - Gives the book Updates records - Updated - - -

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