CSE 110 midterm questions with correct answers

What is software engineering? Why do we need it? What are the goals? CORRECT ANSWER An application of engineering to the design, development, implementation, testing and maintenance of software in a systematic method. Software is important and we need a method to implement it efficiently. What are the stages in the waterfall model? What does each accomplish? CORRECT ANSWER -Requirements -Design -Implementation -Verication -operation What is the often fatal flaw of the waterfall model as model for an actual process? CORRECT ANSWER Doesn't allow for changes along the way Why do we still talk about the waterfall model? CORRECT ANSWER It's just a more preferred model What does a "spiral model add?" CORRECT ANSWER Create a prototype at every step Group analyzes risk of prototypes Risk assessment (keyword)