SPIRAL MODEL Meaning and
Definition
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The spiral model is a software development life cycle (SDLC) model that combines elements of both iterative and waterfall models. It is an incremental approach to software development, integrating risk analysis and prototyping into the development process.
In this model, the software development life cycle is represented as a spiral rather than a linear process. The development process begins with an initial planning phase, where the objectives, constraints, and risks of the project are identified. This is followed by a series of iterations, each representing a spiral within the model.
Each spiral comprises four key activities: planning, risk analysis, engineering, and evaluation. During the planning phase, requirements are defined, project plans are developed, and resources are allocated. The risk analysis phase involves identifying potential risks and developing strategies to mitigate them. In the engineering phase, the software is developed, verified, and validated. The evaluation phase allows for customer feedback and review, enabling improvements and modifications to be made.
The spiral model emphasizes flexibility and adaptability, allowing for changes and adjustments to be made at each iteration. It is particularly suitable for large-scale projects with high risks and uncertainties. The model enables early identification and management of risks, reducing the likelihood of costly errors or failures down the line.
Overall, the spiral model provides a systematic approach to software development, integrating risk analysis and iterative development to deliver high-quality software products.
Common Misspellings for SPIRAL MODEL
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- spital model
Etymology of SPIRAL MODEL
The term "spiral model" is derived from the word "spiral", which refers to a curved, winding shape or pattern. In the context of software development, the term specifically describes a development process that is iterative and follows a spiral-like progression. The term "spiral model" was coined by Barry Boehm in his 1986 paper titled "A Spiral Model of Software Development and Enhancement". The spiral model represents a continuous cycle of development activities, which includes planning, risk analysis, development, and evaluation, represented as a spiral shape.
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