Waterfall, Agile, Scrum and Kanban methodologies

Waterfall in Project management

The Waterfall model is a linear, consistent life cycle model of a project. It is the first process model to be introduced. It comes from construction and manufacturing. It is used in environments that are significantly structured and not easily adaptable to change.

In this approach, each stage or set of tasks must be completed before the next stage begins. This avoids overlapping of project phases. Its workflow is designed to flow in a downward direction, similar to a waterfall, including the stages of design, initiation, analysis, construction, testing, implementation and maintenance.

As with any approach, Waterfall comes with a number of advantages. For starters, the project planning and design phases are more direct, leading to more synchronization between the development team and clients regarding project results. Furthermore, it is easier to measure progress since the full scope of the project is known in advance. Once the requirements are established by the clients, there is no obvious need to engage the client until the work is completed.

However, this also makes it a more rigorous approach that is less iterative and not open to change. This necessitates a number of disadvantages compared to Agile. When it comes to comparing Agile to Waterfall, the

Waterfall does not give much room for changes

The waterfall model does not give much room for changes or revisions. This makes it difficult to revise the earlier stages in the event that a problem arises or risk is forecast. Once planned, the project flow must follow the entire development lifecycle before any changes can be made, making it extremely difficult to implement and maintain today when customer requirements and market trends undergo rapid, unanticipated changes on a regular basis.

Agile is a project development approach

Agile is a project development approach that helps teams collaborate on relevant requirements and solutions through continuous evolution. It includes policies that allow teams to perform better planning, development, timely and early delivery of a project, all the while being prepared for sudden changes and able to respond to these changes.
The basic methodology adopted by Agile is that projects are divided into stages, which are then organized and prioritized before a sequential iteration. Agile is designed to focus and evaluate interactions, collaboration with customers, and to respond to changes entrusted to them.

Agile focuses on achieving quality

In short, Agile focuses on achieving quality projects gradually, rather than withdrawing all important activities in one go. This helps to monitor the progress of the project, leaving sufficient space to focus on each individual element of project management from start to finish.

Kanban methodology

Kanban methodology has helped Toyota automaker optimize its processes and become the number one manufacturer in the world. “Kanban” is a methodology that aims to make the project lifecycle more streamlined and team collaboration more effective, through consistent improvements and facilitation in managing change during the implementation of a project. This methodology focuses more on continuous improvement through incremental changes in a particular work environment. Kanban focuses on improving the flow of projects and the quality of the product at a team or team level. In this methodology, the project stages can be modified by anyone in the team, as long as it presents the status of the respective changes. This means that there is no one person to ensure that the team adheres to established work policies.

Kanban assists in the overall optimization of the project development cycle

Kanban assists in the overall optimization of the project development cycle, helping teams achieve continuous project improvement. This ultimately leads to better completion rates at a given stage, while maintaining the quality of the resulting product.

In my opinion, in this dynamic world, we need to be flexible enough and quick to deal with the changes that have occurred in order to be competitive enough in our field. Methodologies such as Agile and Scrum provide solutions to these problems and prove their advantages over Waterfall. Of course, it always depends very much on the nature of the project, but this does not prevent us from drawing on good practice and applying these methodologies in our work. So I can safely say that I strongly recommend them.

I hope I have been comprehensive enough to answer any questions I may have. If you need further clarification, you can write to me at any time.

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