its too complicated
Spiral Model.........
Spiral model was developed by Dr. Barry Boehm . This model was mainly used to evaluate and resolve risks in the software project.
spiral model is just like incremental model but in spiral emphasize is on risk analysis.
The spiral model is used by reputable companies such as IBM, Microsoft, Patni Computers and Tata Consultancy where large projects are involved.
The win-win spiral approach is very similar to the spiral model in that it is simply an extension of the spiral model. In the win-win model approach, everyone discusses things together to figure out what should go into the new version of the software.
explain spiral model in sdlc
spiral model is iterative model hence its easy to implement it .
The spiral model is called a meta model since it encloses all other life cycle model.
prototype model is suitable when user requirement are not very clear, while spiral model suitable for large projects whether customer requirement are not known in the beginning
In spiral model the main emphasis is on the management to evaluate and resolve risks in the software project. There is no maintenance phase in spiral model because instead risk is evaluated .
There are many differences exists between waterfall model and spiral model. In waterfall model if any sudden change takes place in the project, then its very hard to fix the issue. Wherein spiral model we can change according to our requirement.
You keep going back to where you started until you get it right.