The Spiral Model is a software development approach that involves iterative development with risk management. It is appropriate for large, complex, and high-risk projects, because it provides continuous improvement through multiple phases or spirals. Planning, prototyping, and feedback are the core principal of each stage in this model . The spiral model is an SDLC model that combines elements of an iterative software development model with a waterfall model . It is advisable to use this model for expensive, large and complex projects. What is Spiral Model ? The spiral model is a software process model that couples the iterative nature of prototyping with the controlled and systematic aspects of the linear sequential model . Barry Boehm mentioned the Spiral model in this paper (1986). The spiral model is also known as meta- model since it encompasses all other life cycle models. What is the Spiral Model ? The Spiral Model is a Software Development Life Cycle (SDLC) model that provides a systematic and iterative approach to software development. In its diagrammatic representation, looks like a spiral with many loops. The exact number of loops of the spiral is unknown and can vary from project to project. Each loop of the spiral is called a phase of the software development process. Some Key Points regarding the Stages of a Spiral Model : The exact number of phases ...
