The document outlines various system development methodologies including Waterfall, Prototype, RAD, JAD, and Agile, detailing their characteristics, advantages, and disadvantages. Each methodology offers distinct approaches to structuring and planning the development process, suited for different project needs and environments. The choice of methodology should align with project requirements, flexibility, and time constraints.

1. System Development
Methodologies
Waterfall, Prototype, RAD, JAD, and
Agile
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2. What is System Development
Methodology?
• A framework used to structure, plan, and
control the process of developing information
systems. Ensures consistent project delivery.
Different models offer varying levels of
flexibility and planning.

3. Waterfall Model
• Linear and sequential design approach.
• Phases: Requirement analysis → System
design → Implementation → Testing →
Deployment → Maintenance.
• Suitable for projects with well-defined
requirements.

4. Waterfall Model: Pros & Cons
• Pros:
• - Easy to understand
• - Simple to manage
• - Clear milestones
• Cons:
• - Inflexible
• - Difficult to accommodate changes
• - Late testing phase

5. Prototype Model
• A working model is developed early in the
project.
• Feedback is gathered from users to refine
requirements.
• Suitable for projects where requirements are
not well-understood.

6. Prototype Model: Pros & Cons
• Pros:
• - Users involved early
• - Quick feedback
• - Better understanding of requirements
• Cons:
• - Misleading results if not properly refined
• - Potentially expensive

7. Rapid Application Development
(RAD)
• Emphasizes quick development and iteration.
• Utilizes prototypes, heavy user involvement,
and iterative refinements.
• Suitable for time-sensitive projects where
requirements evolve.

8. RAD: Pros & Cons
• Pros:
• - Fast delivery
• - User involvement
• - Reduced development time
• Cons:
• - Requires highly skilled developers
• - Not suitable for large-scale systems

9. Joint Application Development
(JAD)
• Focuses on involving users and stakeholders
early in the design process.
• Structured workshops to gather system
requirements.
• Collaborative approach, suitable for large-
scale systems.

10. JAD: Pros & Cons
• Pros:
• - Reduces scope creep
• - Better communication between stakeholders
• - Faster design approval
• Cons:
• - Time-consuming workshops
• - Difficult to schedule all stakeholders

11. Agile Methodology
• Iterative, incremental approach.
• Focus on flexibility and customer
collaboration.
• Sprints: Short, manageable cycles that deliver
small, functional parts of the system.

12. Agile: Pros & Cons
• Pros:
• - Flexibility
• - Customer satisfaction
• - Continuous improvement
• Cons:
• - Requires constant user involvement
• - Can be challenging to scale

13. Comparison of Methodologies
• Waterfall, Prototype, RAD, JAD, and Agile each
have their own strengths and weaknesses.
Choosing the right methodology depends on
project needs, flexibility, and timeframe.

14. Conclusion
• Each system development methodology has
its unique strengths and weaknesses.
Selecting the right one depends on the
project's requirements. Thank you!