What is the Waterfall methodology?
It's a linear and sequential approach to project management.
Definition
The Waterfall methodology is a linear and sequential approach to project management, characterized by its phase-by-phase structure, where each phase must be completed before moving on to the next.
Structure
Projects are divided into distinct phases, with no overlap between them, resembling the flow of a waterfall.
Gantt Charts
Often visualized using Gantt charts, the Waterfall methodology is commonly used in industries like construction.
Limited Flexibility
Unlike agile frameworks, the Waterfall approach does not easily accommodate changes once a phase is completed, treating any change as a potential risk against the defined plan.
Phases
Waterfall typically has the following phases: requirement gathering, design, development, testing, deployment, and maintenance.
Requirement Gathering
The initial phase involves the detailed collection and documentation of all project requirements.
Design
This phase includes both high-level and detailed design work, specifying the system architecture and interfaces.
Implementation
The actual development work begins, based on the design specifications from the previous phase.
Testing
Each component is tested to ensure it meets the specified requirements and functions as intended.
Deployment
The completed project is deployed or released to end-users or customers.
Maintenance
Maintenance and ongoing support activities are carried out to ensure the project continues to function correctly.