A systems analyst junior in my organization just took a course in the Agile development. He liked the new approach and he really wanted to know how to decide which approach to follow for Software Development Lifecycle (SDLC). He was debating whether it is better to use Waterfall or Agile for big projects. His thinking was that Agile should be used for big projects with non-sequential product development and for projects that are often prone to change in requirements and cost. Is he right? Minimum words should be 200 with APA Format style.