The Spiral model is a combination of the iterative development process model and sequential linear development model, that is, the waterfall model, with very high emphasis on risk analysis.
Understanding the Spiral model
Core phases
The Spiral model is pretty much similar to the incremental model in which more emphasis is placed on risk analysis during the course. In the emerging IT industry, risk factor is part and parcel of the process. Instead of avoiding the risk elements, it is advisable to identify the risk and apparently to build the alternative solution. It is referred as risk analysis. The four phases adopted in the Spiral model are explained in the following diagram:
Identification: In the first phase, that is, the Identification phase, it is essential...
