Waterfall Vs Agile

Waterfall Vs Agile

Let's analyze the core differences between the plan-driven Waterfall approach and the Agile methodology.

 

Waterfall: Project development flows steadily downwards like a waterfall from one phase to another. The common phases are: Define, Analyze, Design, Build, Test, Launch, and Maintain. The preceding phase must be completed before the next phase can begin.

Agile: Work evolves in an iterative and incremental manner with an emphasis on collaboration, responding to change, and continuous improvement. Its core foundation was laid with the Agile Manifesto for Software Development in 2001. 

 

Waterfall: Encourages conformance to processes and tools

Agile: Values people interactions over processes and tools

 

Waterfall: Requires comprehensive documentation

Agile: Values working software over comprehensive documentation

 

Waterfall: Restricts new ideas

Agile: Encourages experimentation and new ideas

 

Waterfall: Promotes a process-centric environment

Agile: Promotes a people-centric environment

 

Waterfall: Dependent on contract negotiation with customers or suppliers

Agile: Encourages customer collaboration over contract negotiation

 

Waterfall: Requires conformance to a detailed project plan

Agile: Embraces change over following a plan

 

Waterfall: Demotivated team members. Requires a continuous effort to motivate the team.

Agile: Creates high performing, self-organizing, and motivated teams

 

Waterfall: Requires a huge rework to accommodate late changes

Agile: Welcomes changes even late in development with minimal rework

 

Waterfall: High cost of change

Agile: Low cost of change

 

Waterfall: Upfront planning

Agile: Just-in-time planning

 

Waterfall: A higher possibility of mismatch between requirements and the final product

Agile: Frequent feedback loops reduce any mismatch between expectations and results

 

Waterfall: Unhappy customers in spite of the hard work by the development team

Agile: Delighted customers due to frequent feedback and response to changes

 

Waterfall: Requires upfront decisions

Agile: Decisions wait till the last responsible moment (LRM)

 

Waterfall: Does not encourage regular interactions with customers

Agile: Promotes daily collaboration with customers

 

Learn more on Agile, Lean, Scrum, or Kanban with below reads:

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