With over 8462 project management methodologies, selecting the most appropriate one can be quite tricky. You need to select one that is suitable for your project and your project team.
Development Methodology is basically a way of organizing the tasks involved in software development. The first step for implementing a project is to select the accurate methodology to ensure the effective execution of the software development process. Before we compare agile methodology and waterfall, let’s take a look at some basics!
Project Management Methodologies
Project management methodologies are referred to the practices and standards for organizing projects to get the maximum output. As a project manager, you need to make sure that the chosen methodology is aligned with the project, team members, goals, and organization. Here are some of the most practical types of project management methodologies:
- Waterfall methodology
- Scrum Methodology
- Agile Methodology
- Kanban Methodology
- Lean methodology, and so on.
Agile project management uses a team-based approach that rapidly deploys a functional application, keeping customer satisfaction at its focal point. The agile method has a timebox phase known as a sprint, which has a defined period of two weeks. By keeping customer input in mind, a deliverables list is prioritized during the start of each sprint; once ended, the team members and customers review and assess the work and provide notes to make future sprints efficient. If the planned work isn’t delivered during the two-week phase, the list of deliverables is reprioritized and used for future sprint planning.
The agile approach is so popular that it performs iterations and relies heavily upon customers’ involvement during each phase of the project, especially during final reviews. Its functionality and flexibility have attracted many developers and managers.
Advantages of Agile Methodology
- It lets the customers have early and frequent opportunities to assess the deliverables (work being delivered). They are free to make decisions and ask for changes throughout the project.
- It is ideal for non-fixed funded projects, and it ensures a high quality of development.
- This approach has testing phases concurrent with each design phase that eliminates most of the risk of bugs in the end product.
- Agile software development delivers the work faster than other methodologies, so if a product owner needs to market a specific application quickly, they can get a basic version of functional software, which is then built on successive iterations for a full feature set.
Disadvantages of Agile Methodology
- Not every customer has the time or concern to remain involved in the project in such an extensive way; this can result in some problems as the agile approach requires a higher degree of customer involvement.
- This method requires teamwork, so it can only be effective when all the agile team members are dedicated to the project.
- Additional sprints may be needed because some items set for delivery don’t get completed during timeboxed phase due to frequent reprioritization. Also, the customers can require frequent changes, which disrupt the development lifecycle.
It is also referred to as Linear Sequential Life Cycle Model. Waterfall methodology follows a sequential cycle that follows the following steps, each of which represents the development phase:
- Collecting and documenting requirements
- Testing of code and unit
- Testing of system
- Testing of Performance user Acceptance called UAT
- Fixing of issues if any
- The finished product is delivered
Advantages of Waterfall Methodology
- Progress can be measured without any hassle because the complete scope of the work is already known through business analysis.
- The development team and customers agree on the set of deliverables in the early phases of the development lifecycle. It encourages straightforward planning and designing.
- Customer involvement is not strictly required in the waterfall approach, except for status meetings, approvals, reviews, etc.
Disadvantages of Waterfall Methodologies
- There are chances that the product owner might be dissatisfied with the final product, and by this time, the changes can be complicated and costly.
- The testing is done after the product development, resulting in a higher probability of bugs and errors.
- The waterfall model cannot be used for large-size products; it is only feasible for small-sized projects.
- It can only be effective if the project requirements are concrete at the beginning of the development.
Agile vs Waterfall
Now the issue comes down to which one to choose? Here are the key differences observed by evaluating each development methodology individually.
- Agile follows an iterative project plan, whereas waterfall development has a sequential approach and is very linear.
- Agile can complete several small projects, but waterfall can only complete one small project at a time.
- The project is separated into sprints in the agile method; the project is broken into phases in the traditional waterfall.
- Product owners can change their requirements every day in agile; the requirements in the waterfall project management is set at the start of the design phase through business analysis, and there are no options for changing it later. However, if a customer wishes to once a product is finished, it will require a lot of time and cost.
- As the products are developed in agile, they are tested concurrently before moving to the next phase. Whereas in the waterfall method, the testing is done once all the build phases are completed.
- The agile teams who are responsible for testers can also be included in the requirement-changing process. No testing teams can be a part of the requirement changing in the waterfall model.
- There is no need for a project manager in agile software development methodologies, and the team members are allowed to manage the project on their own. The waterfall approach uses a project manager who plays a crucial role in each approach.
Both the software development methodologies have their pros and cons, we cannot say which one will be best for every situation as each of them are entirely different working software. However, there are few factors that you need to consider before choosing one. Those factors include customer availability, SDLC, team type, funding, feature prioritization, and scope.
Once you keep these factors in mind, choosing the appropriate methodology for a certain software development project would become easy! Still, if we get to choose one that will work for most situations, which would be Agile. Its iterative approach, distinct phases, and customer involvement make it a safer yet efficient option to choose for project management software. Find out how we can work with your team on Agile Methodologies and more by contacting Leadership Tribe today.