Advantages and Dis-advantages of Waterfall Model

What are the Advantages & Dis-advantages of Waterfall Model

Advantages of waterfall model:

• It allows for departmentalization and managerial control.
• Simple and easy to understand and use.
• Easy to manage due to the rigidity of the model – each phase has specific deliverables and a review process.
• Phases are processed and completed one at a time.
• Works well for smaller projects where requirements are very well understood.
• A schedule can be set with deadlines for each stage of development and a product can proceed through the development process like a car in a car-wash, and theoretically, be delivered on time.

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Disadvantages of waterfall model:

• It does not allow for much reflection or revision.
• Once an application is in the testing stage, it is very difficult to go back and change something that was not well-thought out in the concept stage.
• No working software is produced until late during the life cycle.
• High amounts of risk and uncertainty.
• Not a good model for complex and object-oriented projects.
• Poor model for long and ongoing projects.
• Not suitable for the projects where requirements are at a moderate to high risk of changing.

Check about Advantages and Dis-advantages of V-model and V-model and Waterfall model