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Introduction:
- The Spiral Model, proposed by Barry Boehm in 1986, incorporates iterative development and risk management principles.
- It divides the development process into several cycles, each involving planning, risk analysis, engineering, and evaluation.
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Phases of the Spiral Model:
- Planning:
- Determine objectives, alternatives, and constraints.
- Risk Analysis:
- Evaluate risks and develop strategies to mitigate them.
- Engineering:
- Develop, verify, and validate the software.
- Evaluation:
- Review the results and plan for the next iteration.
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Advantages:
- Risk Management: Addresses risks early and continuously throughout the project.
- Flexibility: Allows for changes and improvements in subsequent spirals.
- Client Involvement: Stakeholder feedback is incorporated at each spiral phase, ensuring alignment with expectations.
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Disadvantages:
- Complexity: Requires expertise in risk assessment and management.
- Resource Intensive: More time and resources may be required for risk analysis and planning.
- Documentation: Each cycle requires documentation, increasing overhead.
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Real World Application of Spiral Model in Designing JUST-Learning App:
- Example: Implementing new features like interactive quizzes on the JUST-Learning Portal, where the impact of changes can be evaluated and adjusted in subsequent spirals.
- Benefits: Enables the JUST-Learning team to systematically address risks associated with introducing new interactive features. Continuous evaluation ensures that the final product meets quality standards and stakeholder expectations.
- Restrictions: Requires rigorous risk management and continuous evaluation, which may extend the project timeline.
Conclusion: The Spiral Model is suitable for projects with high uncertainty and changing requirements, such as enhancing interactive features on the JUST-Learning Portal. It emphasizes risk management and continuous evaluation throughout the development process.
