Continuous Verifiable Delivery

Correct Answer: Hold a retrospective to identify the root cause of these shortcomings, update the definition of done and ensure verifiable user stories before moving to the next iteration.

The best answer is to hold a retrospective to identify the root cause of these shortcomings, update the definition of done and ensure verifiable user stories before moving to the next iteration. This response involves proactively analyzing the problem, learning from it, and applying improvements to future work, which is a core principle of Agile methodologies. Ignoring the bugs will only make the problem worse in long term as unresolved issues can have compounding effects. Blaming a team member is not helpful and does not align with the collaborative and improvement-focused spirit of Agile practices. Finally, hiring external consultants might be beneficial in some scenarios, but it's essential to realize that the issue may stem from the team's practices than from individual's expertise; thus, it must be addressed within the team.

Correct Answer: Immediate work should begin on fixing the bug, without waiting for next iteration.

In the context of Continuous Verifiable Delivery, an approach followed in Agile methodologies, high-priority issues should be addressed immediately, without waiting for the next iteration. This ensures the delivery remains reliable and verifiable, and the quality of the product maintains a certain standard. This makes the answer 'Immediate work should begin on fixing the bug, without waiting for next iteration.' correct. The approach of blaming the individual who introduced the bug doesn't align with the Agile principle of a supportive, blame-free culture. Ignoring the bug may lead to greater issues down the line and not handling it right away contradicts the principle of continuous improvement. Likewise, documenting and dealing with the bug only if there is remaining capacity in the next few iterations does not guarantee that the issue would be addressed in a timely manner, particularly if it is a major bug. It may lead to a deficient product which conflicts with the goal of a high-quality product in each iteration.

Correct Answer: Introduce performance-based user stories into the backlog and prioritize them for delivery in upcoming sprints.

The principle of Continuous Verifiable Delivery, which is a key aspect of Agile methodology, demands that the development team consistently delivers working pieces of the product. When stakeholders express concern about the software's speed, the team can address this by introducing performance-based user stories into the backlog and prioritizing them in upcoming sprints. This way, they can focus on increasing the software's speed while still working on its overall functionality. The answer suggesting to disregard all characteristics except speed loses the balance of holistic product development and would not be sustainable. On the same note, completely ignoring feedback contradicts the Agile principle of customer collaboration. Finally, conducting a training session to tell stakeholders that Agile teams don't focus on performance not only dismisses legitimate stakeholder concern, but also falsely represents Agile methodologies, which emphasize continuous improvement in all aspects of a software product.