What disadvantages can you highlight in the traditional waterfall model of project development?

The Waterfall model has several disadvantages in project development:

• Rigid sequence of stages: each stage must be fully completed before moving on to the next, which makes it difficult to make changes at later stages.

• Limited flexibility: it is hard to adapt to changing requirements or new data during development.

• Late detection of errors: testing occurs at the end, so errors and shortcomings are discovered late, increasing the cost of fixing them.

• Lack of user feedback: the final product is shown to the customer only after all stages are completed, which can lead to a mismatch with expectations.

• Risk of exceeding time and budget due to the need to revisit previous stages when problems are found.

These disadvantages make the Waterfall model less suitable for projects with high uncertainty and rapidly changing requirements.