Spiral Model
The Spiral Model is a risk-driven software development process model that combines iterative development with systematic risk analysis. It involves repeating cycles (spirals) of planning, risk analysis, engineering, and evaluation to progressively refine the software product. This model is particularly suited for large, complex projects where requirements are unclear or likely to change.
Developers should use the Spiral Model when working on high-risk projects with evolving requirements, such as in defense, aerospace, or large-scale enterprise systems, as it allows for early identification and mitigation of risks through iterative prototyping. It is also beneficial when customer feedback is crucial throughout development, as each spiral incorporates evaluation and planning for the next cycle, reducing the chance of project failure due to unforeseen issues.