In this post, we will understand the difference between waterfall model and spiral model −
It works in sequential method.
The errors and risks are identified and rectified after the stages are completed.
It is generally used by customers.
It can be used with small projects.
The requirements and early stage planning is important and required.
It is not flexible.
It is difficult to make changes in a waterfall model.
It involves a high amount of risk.
It is comparatively less expensive.
Following is the representation of Waterfall Model −
It works in evolutionary method.
The errors and risks are identified and rectified before the stages are complete.
It is generally used by developers.
It can be used with large projects.
The requirements and early stage planning is not necessary, but can be done if required.
It is flexible.
It is easy to make changes in spiral model.
It involves less risk.
It is very expensive.
Following is the representation of the Spiral Model −