T-shirt sizing estimates work by assigning relative effort categories, usually extra-small (XS) through extra-large (XL). XS represents the lowest effort and XL the highest. section 7.2.2
Use it as a simple starting point when a team needs to compare tasks without claiming precise time estimates. Consider task complexity, team skill, and available resources when assigning sizes. section 7.2.2
Choose T-shirt sizing when:
- The team wants a straightforward alternative to Planning Poker or the Fibonacci Sequence. section 7.2.2
- The team needs relative categories for tasks whose effort may be uncertain or difficult to express in hours. section 7.2.2
- The estimates can be reviewed and revised as the project develops. section 7.2.2
Search feature estimates
A search feature can be decomposed into tasks with increasing relative effort: creating an empty search-page framework, displaying filters, displaying results, implementing standard search, and implementing search filters.
