Waterfall Methodology - Outdated Approach or a Viable Option?
Tags: architecture, webdev, devjournal, beginners
Published: 2022-11-15 14:52:11


Several popular and trusted project management methodologies like Agile, Kanban, Six Sigma, and Scrum exist. However, the Waterfall still takes its place among them. 

Though it no longer seems viable compared to other methodologies based on an iterative approach, developers often use this linear project management approach for planning, detailed documentation, and consecutive execution. 

A Waterfall model is a viable option for businesses where software requirements are known upfront. Industries such as manufacturing and construction, where the shipping cost is expensive, usually prefer this model. 

The reason? It is structured, predictable, and easy to communicate. 

Does that mean it is viable in terms of cost, effort, and quality? Let’s find out!

##What is the Waterfall methodology?

Waterfall methodology is a software development process that flows like a waterfall through six distinct phases. 


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/1trobxd2001z93mwg51c.png)

This method follows a sequential or linear management approach where initially, the requirements are gathered. Based on it, a sequential plan is developed to meet those requirements. Here the next step can be started only when the previous task is completed. 

Since it is based on the phase-by-phase structure, the Waterfall methodology is a preferable option for developing smaller projects with fewer deliverables. 

##Advantages of Waterfall methodology

The [Waterfall method](https://www.simform.com/blog/waterfall-vs-agile/) is straightforward and well-defined. As requirements are clearly defined from the beginning, each contributor knows what, when, and how they are associated with the project. 

Here’re the benefits of adopting the Waterfall method:

- It focuses on the end goal and eliminates the risk of getting bogged down.

- The project's status is easily measured based on a complete schedule and resource plan. 

- The development cost can be determined in the initial stage. 

- This method enhances resource utilization because the tasks are divided into different groups in order to leverage resource skills.

- Any new developer in the team can easily get up to speed whenever they join the project. This is because everything they need to know is already in the requirements document. 

##Disadvantages of Waterfall methodology

One of the main disadvantages of this method is it is less flexible. In addition, the unexpected changes that come further in the process can be complex, time-consuming, and costly. 

Below are some other reasons the Waterfall method may not work for your business:

- Due to its chronological approach, projects can take longer to deliver. There can also be unexpected delays in the case of larger projects. 

- The requirements are not considered during the development phase. So if you anticipate changes and want to be informed throughout the development lifecycle, this model may not work well for you.

##When to use the Waterfall model?

It’s recommended to use the Waterfall model only if your project meets the following requirements:

- When all the requirements are specified and clear. 
- The project is simple or short-term.
- The development environment and necessary tools and techniques are stable.
- The resources are trained and available.

##Over to you

The Waterfall methodology has both critics as well as supporters. However, it remains popular even though it has embraced some flaws, such as inflexibility and lack of client involvement. 

If you work with a small team and the project is consistent and predictable, it is an ideal framework for keeping your team organized and on track. This method might also work for large projects depending on the project requirements and complexity. If it doesn’t, don’t hesitate to customize it as per your requirements because, in the end, it’s all about getting the most value in a reasonable time. 

What are your thoughts on it? Tell us in the comment section.