Waterfall Model in SDLC Explained | Phases, Flow, and Example | QA Vault

Learn the Waterfall Model in SDLC with clear, step-by-step explanations! 💧
In this video from QA Vault, we explore one of the oldest and most popular SDLC models — the Waterfall Model.

The Waterfall Model is a linear and sequential software development approach*where each phase flows downward into the next — just like a real waterfall. Once one stage is complete, the team moves to the next without revisiting previous steps.

🔹 Phases of the Waterfall Model:
1️⃣ Requirement Analysis– Gather and document client requirements.
2️⃣ Design – Create system architecture, database design, and UI structure.
3️⃣ Implementation (Development) – Developers write code module by module.
4️⃣ Testing – Testers verify the product, identify defects, and ensure quality.
5️⃣ Deployment– Release the software into the production environment.
6️⃣ Maintenance* – Perform updates, enhancements, and bug fixes post-release.

💧 The model is called “Waterfall”* because the process flows in one direction — downward — from start to finish, with no backward movement.

✅ Advantages: Simple, easy to manage, best for smaller projects with fixed requirements.
⚠️ Limitations: Not flexible for changing requirements since testing happens only after development.

📌 In summary:
The Waterfall Model is the foundation of structured software development — ideal for projects with clear, stable goals.

👉 Stay tuned with QA Vault for more videos on different SDLC models, their advantages, **disadvantages**, and **real-world use cases**.
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Видео Waterfall Model in SDLC Explained | Phases, Flow, and Example | QA Vault канала QA Vault