In project management, which methodology is characterized by a linear progression of phases?

In project management, the methodology characterized by a linear progression of phases is the Waterfall approach. This methodology is structured in a sequential order, where each phase must be completed before moving on to the next one. It typically follows a process that includes stages such as requirements gathering, design, implementation, testing, deployment, and maintenance.

The linear nature of Waterfall means that project teams have clear objectives for each phase and can easily track progress. Once a phase is completed, there is generally little room for revisiting earlier stages unless significant changes are necessitated, which can lead to increased costs and timelines. This approach is especially beneficial in projects where requirements are well understood from the beginning and are unlikely to change significantly during the project lifecycle.

In contrast, Agile and Scrum methodologies promote flexibility, allowing for iterative development and the ability to adapt to changes throughout the project. Six Sigma, while focused on process improvement and quality, does not follow a strictly linear phase progression like Waterfall. Each of these methodologies serves different contexts and project needs, but the clear linear path defined by Waterfall sets it apart as a distinct option in project management practices.