Disadvantages of the Waterfall model

The following are some of the disadvantages of the Waterfall model:

• Working software is produced only at the end of the SDLC, which lasts for a year or so in most cases.
• There is a huge amount of uncertainty.
• It is not suitable for projects where the demand for new features is too frequent. For example, e-commerce projects.
• Integration is performed only after the entire development phase is complete. As a result, integration issues are found at a much later stage and in large quantities.
• There is no backward traceability.
• It's difficult to measure progress within stages.