What is Waterfall Methodology?

Imagine you’re building a huge Lego castle. You wouldn’t start by just randomly stacking Lego bricks, right? You’d have a plan. You’d probably start with the foundation, then the walls, and finally add the towers and flags. And you wouldn’t move on to building the walls until you’re sure the foundation is solid. This step-by-step approach is similar to how the Waterfall Methodology works in creating software or managing projects.

Waterfall Methodology

Waterfall Methodology

The Waterfall Methodology is like a big plan or a recipe for how to complete a project. It’s called “Waterfall” because just like a waterfall that flows down from one level to the next, in this method, you finish one step completely before moving on to the next one. You don’t go back up, just like water doesn’t flow back up a waterfall.

Let’s break it down into simple steps, like chapters in a storybook:

  • Requirements: This is where you decide what you want your Lego castle to look like. In a project, this means figuring out exactly what needs to be done. What does the final software or product need to do?
  • Design: Now that you know what you want, how are you going to build it? This step is all about planning. In the Lego analogy, it’s when you decide how many bricks you need and what types.
  • Implementation: This is where the actual building happens. You take your design and start coding or constructing the project piece by piece.
  • Verification: Think of this as checking your Lego castle for any loose bricks. In a project, this means testing to make sure everything works as it should.
  • Maintenance: Even after your castle is built, you might need to replace a brick or two that gets lost. Similarly, after the software is made, this step involves making sure it keeps working well, and fixing any problems that pop up later.

The Waterfall Methodology is really organized and clear, which makes it great for projects where you know exactly what you need from the start and don’t expect many changes. However, just like with building a Lego castle, if halfway through you decide you want to change something at the foundation level, it can be tricky because you’ve already built so much on top of it.

So, in a nutshell, the Waterfall Methodology is a step-by-step approach to project management, where each stage has to be completed before moving on to the next, just like building a Lego structure, one layer at a time.