What is the Spiral Model in software development?
a) A risk-driven process model combining iterative development and the Waterfall model
b) A linear process model similar to Waterfall
c) A prototyping-based model
d) A model that skips the testing phase
Answer:
a) A risk-driven process model combining iterative development and the Waterfall model
Explanation:
The Spiral Model is a risk-driven process model that combines iterative development with aspects of the Waterfall model. It emphasizes early identification and mitigation of risks by allowing developers to build prototypes and iterate through the development cycle.
The Spiral Model is organized into multiple spirals (iterations), with each spiral consisting of four phases: planning, risk analysis, engineering, and evaluation. This model is ideal for large, complex projects where risk management is a priority.
The Spiral Model is flexible and allows for continuous refinement of requirements and solutions, making it suitable for projects with evolving requirements.