Final answer:
The Waterfall methodology is best for projects with clear, unchanging requirements, as it follows a sequential process ensuring all regulation-based needs are addressed systematically.
Step-by-step explanation:
For a project with clear requirements and goals based on mandated regulation, the Waterfall methodology is the most suitable choice. The Waterfall model is preferred in scenarios where requirements are well-defined and unlikely to change during the development process.
This method involves sequential design processes, which include: requirements definition, system and software design, implementation, testing, deployment, and maintenance. As opposed to more flexible methodologies like Agile or Scrum, Waterfall's structured approach ensures that all regulatory requirements are met before moving to the next phase, minimizing the risk of project delays due to retrospective changes.