Sequential Methologies

In the Agile, development is divided into short cycles called Sprints with continuous feedback and frequent releases. The complete project is not developed and delivered at one time. Instead, the requirements are divided into smaller features, and the team develops and delivers them in different Sprints. It is done because after every Sprint, the stakeholders can review the completed work and provide their feedback. For eg, if one is making a website for student learning and certifications for job opportunities, the features can include candidate profile, certification exams, company hiring portal, notifications, and candidate search. In Agile, these features can be developed and delivered incrementally. In the first Sprint, the team can develop candidate registration and profile features. In the next Sprint, certification exams can be developed, followed by the company hiring portal in another Sprint. This allows the stakeholders to see the progress of the project and provide feedback regularly. The main advantages of the Agile Model are flexibility, faster delivery, better stakeholder collaboration, and continuous feedback. If the business requirement changes during the project, the BA can discuss the change with the stakeholders, analyse its impact, and add it to the Product Backlog based on its priority without any issue. The BA works closely with the Product Owner, developers, testers, and stakeholders. The BA also helps in preparing user stories, defining acceptance criteria, and collecting feedback during Sprint Reviews. Agile is also useful when the requirements are not completely clear at the beginning of the project. As the product develops, stakeholders get a better understanding of what they actually need gtom the project. Based on their feedback, the BA can help the team improve or modify the requirements in upcoming Sprints. When we use the Waterfall Model, the development follows a fixed sequence, such as Requirement Gathering, Requirement Analysis, Design, Development, Testing, and Deployment. In this model, one phase is generally completed before moving to the next phase. Therefore, the requirements are expected to be properly understood and finalized at the beginning of the project. Waterfall is mainly suitable when the requirements are clear, stable, and well understood. It is easier to plan the complete project in advance because the scope, timeline, resources, and deliverables are generally defined before development starts. However, one of its limitations is that it can be difficult to handle major changes once development has started. If a requirement changes at a later stage, it may affect the design, development, testing, timeline, and project cost as in waterfall making changes in difficult and will hamper whole project. For example, if we are making a centralized monitoring tool for a company to keep track of server availability, performance, and important services across different environments, the Waterfall method can be suitable when the requirements are already clearly defined. For example, the company may already know which servers need to be monitored, what parameters need to be checked, what type of alerts are required, and who should receive those alerts. In such a situation, the BA can gather and document the requirements properly before development starts. The development team can then configure the monitoring tool, attach the required servers, create the required monitoring scripts, and perform testing based on the finalized requirements. From a Business Analyst perspective, both Agile and Waterfall have their own importance. The BA's role is different depending on the methodology being used. In Agile, the BA is continuously involved throughout the project and regularly interacts with stakeholders and the development team. The BA works on user stories, acceptance criteria, backlog refinement, Sprint Planning, Sprint Reviews, and requirement clarification. In Waterfall, the BA spends more time during the requirement gathering and analysis phase and prepares detailed requirement documents such as BRD, functional requirements, process flows, and requirement traceability documents. The BA also supports the testing and validation activities later in the project. There is no single methodology that can be called the best for every Business Analysis project. The choice between Agile and Waterfall depends on the type of project, clarity of requirements, level of expected changes, stakeholder involvement, timeline, and business environment. If the requirements are expected to change frequently and the business wants continuous feedback and frequent releases, Agile can be a suitable approach. If the requirements are fixed and clearly defined from the beginning and changes are expected to be very limited, Waterfall can be a suitable approach. Therefore, as a Business Analyst, it is important to understand both methodologies and select the approach according to the project requirements. The main responsibility of the BA in either methodology is to understand the business problem, gather and analyse requirements, communicate them clearly to the technical team, manage requirement changes where applicable, and make sure that the final solution meets the actual business needs.