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Planning Poker Template

Story Decomposition Workshop

Identify which epics need breaking down before the sprint starts

Use T-shirt sizing to quickly flag stories that are too large to complete in a single sprint. Any story sized XL or XXL is a signal to decompose it into smaller, independently deliverable pieces. This workshop surfaces hidden complexity early, reduces half-done work at sprint end, and improves forecast accuracy over time.

Deck type
t-shirt
Duration
45 minutes
Team size
4–8 people
Estimation focus
Relative size and deliverability

Steps

  1. 01List all epics and large stories from the upcoming roadmap
  2. 02Vote T-shirt size for each item (XS, S, M, L, XL, XXL)
  3. 03Reveal and flag any XL or XXL items for decomposition
  4. 04Workshop each flagged item into 2–5 smaller stories
  5. 05Re-size the child stories to confirm they fit in a sprint
  6. 06Update the backlog with the decomposed stories

When to use

At the start of a new quarter or before a major feature build. Run this before backlog refinement so only sprint-sized stories enter the refinement queue.

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