What is the agile analyst doing when they collaborate to elaborate, decompose, and sequence PBIs for the next iteration?

The process described involves the agile analyst working with the team to clarify and break down Product Backlog Items (PBIs) in preparation for the next iteration. This activity is known as backlog refinement. During backlog refinement, the team examines the PBIs and ensures that they are well-understood, prioritized, and ready for the upcoming iteration. This includes elaborating on the details of the items, decomposing larger items into smaller, manageable tasks, and sequencing them based on priority and dependencies.

Refinement is critical because it helps the team to maintain a healthy backlog, ensuring that items are actionable, and aligns everyone on what needs to be done next. The activities of elaborating, decomposing, and sequencing are all integral components of this backlog refinement process.

The other choices describe related but distinct activities. Story decomposition specifically focuses on breaking down user stories into smaller components. Supporting successful delivery emphasizes the overall goal of ensuring that the team delivers value, which is a broader goal that encompasses many activities beyond just refining the backlog. Decomposing the backlog could refer to a similar activity but lacks the encompassing nature of what backlog refinement represents in an agile context.