Iterative and Incremental Development Questions and Answers for Viva

Answer-1: Iterative and Incremental Development is a methodology where software is developed in small, iterative cycles and increments, allowing for continuous improvements and flexibility.

Answer-2: Iterative development focuses on revisiting and refining previous versions of the product, while incremental development involves building the product in small, functional pieces.

Answer-3: Advantages include better risk management, faster delivery of features, early customer feedback, and flexibility in responding to changes.

Answer-4: By delivering small parts of the software early, it allows for early identification of issues and better management of project risks.

Answer-5: Customer feedback is integrated after each iteration, allowing for adjustments to meet changing customer needs and ensuring the final product aligns with expectations.

Answer-6: Key phases include planning, design, development, testing, and evaluation, which are repeated in cycles (iterations).

Answer-7: This approach accommodates changes by allowing each iteration to adapt to new requirements or feedback without disrupting the overall project flow.

Answer-8: An iteration is a time-boxed period in which a portion of the system is designed, developed, and tested. It results in a functional increment of the software.

Answer-9: An increment is a portion of the software that is developed and delivered after each iteration, adding new functionality or enhancements to the system.

Answer-10: Yes, this approach can be scaled to large projects by dividing the system into smaller, manageable components that are developed in parallel or sequentially.

Answer-11: The Product Backlog lists all desired features and functionalities, which are prioritized and incrementally addressed throughout each iteration.

Answer-12: Testing is conducted after each iteration to verify the functionality of the newly added increment and to ensure that the software meets its requirements.

Answer-13: Progress is measured by the completion of functional increments after each iteration, often using metrics such as velocity or story points.

Answer-14: A sprint is a specific iteration, typically lasting from one to four weeks, during which a particular set of features or tasks is developed and tested.

Answer-15: Disadvantages include possible scope creep due to frequent changes, lack of clear project vision if iterations are not properly planned, and potential for longer time-to-market in some cases.

Answer-16: The "Definition of Done" ensures that each increment is fully completed and tested before moving on to the next iteration, maintaining quality and consistency.

Answer-17: It provides frequent feedback and deliverables after each iteration, allowing stakeholders to have clear visibility of the project's progress and direction.

Answer-18: Resources are allocated based on the needs of each iteration, ensuring that teams are focused on delivering a working increment while managing resources efficiently.

Answer-19: The iterative nature encourages constant reflection and improvements, as teams can assess their work after each iteration and adapt their process accordingly.

Answer-20: The Scrum Master ensures that the development team follows the iterative process, removes obstacles, and helps facilitate the progress of each sprint.

Answer-21: Dependencies are managed by prioritizing features and breaking down complex tasks into smaller increments, ensuring that teams can work on independent tasks and minimize inter-team dependencies.

Answer-22: Quality assurance is integrated into each iteration through testing, code reviews, and validation of functionality to ensure each increment meets the required standards.

Answer-23: Agile is a broader methodology that incorporates Iterative and Incremental Development, focusing on collaboration, flexibility, and continuous delivery of small software increments.

Answer-24: Scope is managed through continuous prioritization of features in each iteration, ensuring that the most important functionality is delivered first and adjustments can be made as needed.

Answer-25: By delivering smaller increments frequently, the development team can release usable features earlier, reducing time-to-market and providing earlier value to users.

Answer-26: Frequent testing and customer feedback after each iteration help identify risks early, allowing for adjustments to be made before the issues become more costly.

Answer-27: Yes, while it?s commonly associated with Agile, the principles of Iterative and Incremental Development can be applied to any project that benefits from breaking work into manageable pieces.

Answer-28: A Product Increment is a version of the software that contains a new set of features or improvements, which is delivered after each iteration.

Answer-29: It promotes collaboration by encouraging regular communication, shared goals, and iterative reviews between cross-functional teams throughout the development process.

Answer-30: Prototyping can be used in early iterations to build quick, low-fidelity versions of features for user feedback, which informs later iterations.

Answer-31: Features are prioritized based on customer value, business needs, technical complexity, and other factors, with the most valuable and feasible features developed first.

Answer-32: Customer expectations are managed by continuously involving them in the development process, providing regular updates, and incorporating feedback after each iteration.

Answer-33: Documentation is updated incrementally, focusing on essential and relevant information for each iteration, rather than producing large documents upfront.

Answer-34: It supports flexibility by allowing changes to be made after each iteration, providing opportunities to adapt to new requirements or customer feedback.

Answer-35: Iterative and Incremental Development aligns with Continuous Delivery by enabling frequent, incremental releases of new software features, improving speed and efficiency.

Answer-36: Testing is integrated into each iteration, and new features are tested as they are developed, ensuring each increment is thoroughly validated before release.

Answer-37: Incomplete features are addressed by refining them in subsequent iterations, with the focus on delivering a functional increment at the end of each iteration.

Answer-38: The Product Owner is responsible for defining and prioritizing the product backlog, ensuring that the team is working on the most valuable features first.

Answer-39: It improves stakeholder engagement by providing regular feedback loops and ensuring that stakeholders are involved in the process after each iteration.

Answer-40: A burn-down chart visualizes the amount of work left in a sprint or iteration. It helps track progress, identify bottlenecks, and ensure that the iteration is on track.

Answer-41: The approach supports adaptability by allowing teams to adjust features, requirements, and priorities after each iteration based on feedback and new information.

Answer-42: Incomplete requirements are addressed iteratively by working closely with stakeholders to clarify and define requirements during each iteration.

Answer-43: Frequent delivery of functional increments and early validation of features builds customer trust by demonstrating progress and responsiveness to feedback.

Answer-44: Tools such as Jira, Trello, and GitHub are commonly used to manage sprints, track progress, and version control the software in Iterative and Incremental Development.

Answer-45: Success is measured by the completion of committed features, customer satisfaction, and whether the iteration?s goals align with the business objectives.

Answer-46: Multiple teams can work in parallel on different parts of the project, with each team delivering their increment and integrating it into the overall system during each iteration.

Answer-47: Technical debt is managed by addressing it during each iteration, ensuring that new code is properly tested and optimized, and refactoring as needed.

Answer-48: It supports product evolution by continuously improving and adding new features in small, manageable increments based on user feedback and changing requirements.

Answer-49: Consistent quality is ensured by integrating regular testing, code reviews, and adherence to quality standards after every iteration and increment.

Answer-50: Unlike the Waterfall model, which follows a linear and sequential process, Iterative and Incremental Development is more flexible and allows for repeated cycles of development with regular customer feedback and adjustments.