Spiral Model vs Waterfall Model
|
Parameters |
Spiral model |
Waterfall model |
|---|---|---|
|
Chosen for |
Chosen for the complex projects where requirements are not fixed and may change during the process of development. |
Chosen for the simple projects where requirements are fixed . |
|
Approach |
Spiral model is an iterative approach towards software development process. |
Waterfall model is a linear sequential approach towards software development process. |
|
Feedback |
Client can give feedback in the middle of the project. |
Client cannot give feedback in the middle of the project. |
|
Changes Done |
In Spiral model, changes can be done after each cycle. |
In Waterfall mode, changes cannot be done in the middle of the project. |
|
Risks |
There are less risks in spiral model. |
There are more risks in waterfall model. |
|
Verifying Risks |
Spiral model constantly keeps verifying risks throughout the project. |
Waterfall model verifies risks mainly at the beginning. |
|
Reusability |
Reusability is feasible to a certain extent. |
Reusability is not feasible. |
|
Best Suited For |
Spiral model is suitable for large projects. |
Waterfall model is suitable for small projects. |
|
Progress |
In spiral mode, progress can be seen regularly. |
In waterfall model, progress can be seen only in final step of the development process. |
Why Spiral Model is Better than Waterfall Model?
The spiral model is mainly used in the development processes of complex projects while the Waterfall model is used for simple projects. Both of these models are selected as per the characteristics of the project. The risks during the project are handled by using the Spiral model and it may be considered better than the waterfall model. Also, we will see some differences between the Spiral model and the waterfall model which suggests that the Spiral model is better than the waterfall model.