Difference Between Waterfall Model and Spiral Model

In this post, we will understand the difference between waterfall model and spiral model −

Waterfall 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 −

Spiral 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 −