An agile team is unable to complete all its planned sprint user stories, which results in a decrease of its planned sprint velocity. What should the team do?
A.
Re-estimate the sprint's completed stories to increase and adjust the sprint's velocity
B.
Increase the duration of the next sprint to accommodate the incomplete user stories and maintain velocity
C.
Work with the product owner to create a spike with another agile team
D.
Re-estimate the incomplete stories for the next sprint because its relative size has changed
D is make sense. Once stories get completed it is useless to re estimate them again, the team should always focus on stories not yet completed for prioritization and refreshing the backlog before starting the next sprint.
Accurate Estimation: Re-estimating the incomplete stories ensures that the team has a realistic understanding of the effort required to complete them.
Reflects Changes: The relative size of the stories may have changed due to new insights or complexities discovered during the sprint.
Improved Planning: Accurate re-estimation helps in better planning and prioritization for the next sprint, leading to more achievable sprint goals.
Continuous Improvement: This practice aligns with agile principles of continuous improvement and learning from each iteration.
Transparency: It maintains transparency with the product owner and stakeholders about the progress and challenges faced by the team.
D - Story sizes are estimated relatively. If current story's size is not correctly estimated means any stories which are estimated based on the wrong relative estimations are also wrong. Re-estimate incomplete stories.
Another point worth to consider, each sprint is considered timebox, so once the timebox is over means the sprint is over.
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