Collective Ownership

Correct Answer: The whole team is responsible for the quality.

In an Agile environment, the whole team shares the responsibility for delivering quality. Agile methodologies encourage shared leadership, with everyone on the team contributing to solutions, hence it's the responsibility of the whole team to ensure the high quality. Other answers suggesting only the quality assurance specialist, the project manager, or the software developer, who built the feature is responsible are not correct, because in an Agile project all team members are encouraged to take ownership and responsibility for the complete product, not just their individual areas of expertise.

Correct Answer: The whole team, as every team member shares the responsibility to fix bugs.

Under the principle of collective ownership in Agile software development, the entire team shares the responsibility of bug fixing. This is because collective ownership emphasizes that the project belongs to the entire team and not single individuals. This encourages team collaboration and reduces single points of failure. This is why the statement 'The whole team, as every team member shares the responsibility to fix bugs' is the most accurate. The other answers are incorrect as they all suggest individual ownership which contrasts the principle of collective ownership. 'Only the team member who wrote the buggy code' misinterprets the collective ownership principle by implying individual responsibility. The 'team leader' and 'The quality assurance specialist' answers are incorrect as they imply that only specific roles within the team are responsible for bug-fixes, which is contrary to the principle of collective ownership that encourages shared responsibility throughout the team.

Correct Answer: The rest of the team shares the responsibility to make the code understandable and continue with it.

The principle of collective ownership in Agile suggests that every member of the team shares responsibility for all the code, not just the parts they individually worked on. This means that the code should be understandable by all members of the team so that anyone can modify, fix or update it as necessary. Waiting for the colleague to return from leave would delay the project and is against Agile principles. Rewriting the entire part of the code can also be wasteful as there is potential to reuse the existing code. Escalation to the project manager and asking for additional resources does not address the root of the problem. Thus, the best practice in this circumstance is for the rest of the team to share the responsibility, make the code understandable and continue with the project.