The Waterfall approach to software development is commonly regarded as obsolete, especially with the intricate and evolving nature of contemporary projects. I am aware of this fact, as well as its popularity during the 1990s.
In my opinion, the Agile methodology is the most advantageous for software development. Its emphasis on simplicity and effectiveness is highly praiseworthy, and I have witnessed impressive outcomes under the guidance of a capable Scrum Master. Therefore, I am not inclined to make comparisons or find faults with Agile.
Agile emerged as a response to the Waterfall methodology, which was previously considered as the ultimate approach to software development. This was due to project managers disregarding the fact that the Waterfall method was only suitable for specific scenarios.
Back then, Waterfall provided an efficient means to establish order in the otherwise tumultuous procedure of creating extensive software. Despite not being infallible, it was effective enough to become the conventional method for a considerable period. Even today, Waterfall is still a popular option.
According to a recent survey conducted by the Project Management Institute, in 2023, 37% of finalized projects utilized Waterfall as their primary project management methodology. When added with the 20% of the projects that used hybrid techniques, it is evident that almost half of the projects investigated employed Waterfall to some extent, proving that it is not an obsolete technology.
One might wonder whether it is wise to adhere to the traditional path and implement the Waterfall methodology. However, if the solution was simple, then we wouldn’t be facing this dilemma.
Understanding Waterfall Methodology
Waterfall is a software development methodology that follows a methodical and distinct procedure. The approach commences with the collection of requirements and concludes with delivering the project and its ensuing maintenance. The team is required to adhere to a predetermined set of stages to ensure a successful outcome.
The stages constitute a sequence that must be pursued in a particular order, akin to a waterfall’s flow, and hence, we term this process sequential. It is not feasible to bypass, circumvent or expedite through this process.
In a distinct procedure, each stage is isolated and must be concluded before the next one can commence. Testing cannot be initiated until the system design and development are finished.
Although there may be some variation, most Waterfall frameworks include the following phases:
Requirements gathering: The team conducts research to acquire a comprehensive knowledge of the project’s background, such as the features to be incorporated, the types of data to be utilized and the deployment settings.
System design: The team makes strategic decisions and determines a plan of action, including which technology will be utilized.
Implementation: Based on their design choices, the team commences working on the project.
Testing: The team runs a model of the product and identifies any imperfections or issues.
Delivery/deployment: The team finalizes the project and delivers it to the customer.
Maintenance: Users who face problems may contact the team for assistance, and the team will address any reported issues.
It is crucial to bear in mind that although there is some degree of inflexibility in the process, there is room for adaptability. For instance, the team may need to revisit the system design stage to re-examine their approach, or continue with the project in the implementation phase if any defects are discovered during testing. We should aim to decrease the need for retracing.
Waterfall-based Structures and You
Before deciding if Waterfall is the right solution for you, it is crucial to comprehend the benefits of Waterfall and the types of problems that it is most effective in addressing.
While the strict structure of Waterfall methodologies can be challenging for developers to adhere to, it can be more comprehensible by customers and colleagues from other fields. For instance, a budget can be more easily rationalized when there is a definitive end point and timeline.
Consequently, the Waterfall approach is frequently preferred by those outside of the project who need to secure external financing, acquire approval from other departments, or account for potential unanticipated repercussions in other areas. It appears more effective and its objectives are simpler to articulate.
Waterfall methodologies promote adherence to the initial plan by guaranteeing that requirements are identified at the beginning of the process and remain unchanged throughout.
A focused approach can be extremely beneficial for smaller projects and teams. This ultimately results in projects being completed in a more timely fashion and developers avoiding investing time and resources into unnecessary features. If the team is small and the projects are frequent, Waterfall may be the most appropriate methodology.
As Waterfall emphasizes a strict structure, it is reasonable to anticipate it placing significant importance on clear communication throughout the entire process.
The well-documented procedures promote communication among the various groups involved in the different stages of development. In addition, new team members can utilize the records to rapidly comprehend the project.
Waterfall provides a useful basis for communication, whether you expect a change in your team composition or end up hiring new members.
It can be difficult to foresee how a team will interact, which implies that new teams often encounter difficulties in forming strong connections and working together effectively. At the commencement of a project, structured methodologies such as Waterfall can be useful in establishing working practices and encouraging teamwork.
Furthermore, not all project managers are prepared to manage the supplementary administrative responsibilities that come with an Agile approach. Agile employs a distinct approach to project management than what is ordinarily observed.
If your manager lacks a good grasp of Agile or your team does not have a project manager from a software development background, Waterfall might be a more straightforward method to learn and manage for someone new to the process.
It is not reasonable to presume that one approach can be applied to solve all potential issues; every project is distinct and thus necessitates a customized solution.
Choosing the appropriate software development methodology should be approached with careful consideration to effectively diagnose the issue at hand, regardless of its popularity.