Theoretical Background: Explain the key phases and characteristics of the Waterfall methodology. Discuss the typical applications and intended use-cases of this methodology. Case Studies Research: Identify and describe examples of organizations that have used the Waterfall methodology. Analyze each case, focusing on the implementation process, challenges faced, and the outcomes achieved. Critical Evaluation: Discuss the advantages and disadvantages of the Waterfall methodology based on your case studies. Reflect on the suitability of Waterfall in modern software development environments