Prototype Model in Software Engineering.pptx

The Prototyping Model is one of the most popularly used Software Development Life Cycle Models (SDLC models). This model is used when the customers do not know the exact project requirements beforehand. In this model, a prototype of the end product is first developed, tested, and refined as per customer feedback repeatedly till a final acceptable prototype is achieved which forms the basis for developing the final product.

1. Definition of the Prototype Model The Prototype Model is a software development model that emphasizes the creation of a prototype (an early approximation of a final system or product) to better understand requirements, validate design concepts, and gather feedback from stakeholders. It is particularly useful in projects where requirements are not well understood or are subject to change.

2. Phases of Prototype Model Requirement Gathering Quick Decision Refining Prototype Building Prototype Customer Evaluation Acceptance by Customer Design Implementation Testing Maintenance

3. Requirements Gathering Client Developer Requirements Gathering: In this phase, the requirements for the system are gathered from stakeholders. These requirements may be incomplete or ambiguous, and the prototype model helps to clarify them through iterative refinement. Identify stakeholders and gather their input. Document initial requirements, even if they are incomplete or ambiguous. Conduct interviews, surveys, and workshops to understand user needs.

4. Quick Decision Quick Design : Once the requirements are gathered, a quick design of the system is created. This design doesn't need to be detailed but should capture the main features and functionalities that the prototype will demonstrate. Create a high-level design that outlines the main features and functionalities. Focus on capturing key user interactions and system behavior. Keep the design flexible to accommodate changes during prototype development.

5. Building Prototype Building Prototype : This is the core phase of the model where a prototype is developed based on the quick design. The prototype can be either a throwaway prototype, used solely for gathering feedback and understanding requirements, or an evolutionary prototype, which serves as the foundation for the final system. Develop a prototype based on the quick design using rapid development techniques. Use prototyping tools or languages suitable for quick iterations. Implement core features and functionalities to demonstrate key aspects of the system.

6. Customer Evaluation Prototype Evaluation : After the prototype is developed, it is evaluated by stakeholders, including end-users, for feedback. This feedback is crucial for refining and improving the prototype to better match the requirements and expectations. Present the prototype to stakeholders for evaluation and feedback. Encourage stakeholders to interact with the prototype and provide their observations. Collect feedback on usability, functionality, and alignment with requirements. !?

7. Refining Prototype Refining Prototype : Based on the feedback received during the evaluation phase, the prototype is refined iteratively. Changes may be made to the design, functionality, or user interface to better align with the stakeholders' needs and expectations. Analyze the feedback received during the evaluation phase. Prioritize changes based on their impact on meeting requirements and user needs. Iteratively refine the prototype, making adjustments to design and functionality.

8. Acceptance by Customer Acceptance by Customer : The software is presented to customers for acceptance testing, aiming to validate it against predefined criteria before final approval for deployment, fostering confidence in the product's readiness. Present software for acceptance testing. Validate against predefined criteria. Gain final approval for deployment. OK

9. Design Design : In this phase, detailed technical specifications are created based on requirements, including architectural design and user interface layout, serving as a blueprint for implementation and ensuring alignment with stakeholders' expectations. Create detailed technical specifications based on requirements. Develop architectural design and user interface layout. Serve as a blueprint for implementation.

10. Implementation Implementation/Coding : In this phase, the actual coding of the software system takes place based on the design specifications from the previous phase. Developers write code according to the design and implement the functionality outlined in the requirements. Writing code based on the design specifications. Implementation of software functionality. Coding standards and guidelines adherence.

11. Testing Testing : After the code is implemented, the system undergoes testing to identify defects or bugs. Different types of testing such as unit testing, integration testing, system testing, and acceptance testing are conducted to ensure that the software meets the specified requirements. Unit testing to test individual components. Integration testing to test interactions between components. System testing to test the entire system.

12. Maintenance Maintenance : After deployment, the software enters the maintenance phase where it is regularly updated and maintained to address any issues that arise, accommodate changes in requirements, or add new features. Maintenance may involve bug fixes, performance improvements, and enhancements based on user feedback. Frequent updates and maintenance activities. Bug fixes and performance improvements. Addition of new features based on user feedback.

13. Thank you for viewing!! Made By Ansh Kashyap