T-shirt sizing is a project estimation and capacity planning tool that helps you track how much time or effort an initiative will take. It should help in planning timelines for one pagers. To do this, you assign each project or task a t-shirt size—from XS to XL —to represent that project's relative effort. The T-shirt size should be noted in Jira as well.
Sizing and expectations:
XS
- Type of work: small fixes or additions to existing products
- Design: 1 designer for 0 → 1 day
- Engineering: 1 engineer for less than 1 sprint
- Research: not expected
- One pager: not expected
- Kickoff: not expected
Small
- Type of work: small, net new feature or sizable change to an existing feature
- Design: 1 designer for 1 → 3 days
- Engineering: 1 engineer for less than 1 sprint
- Research: internal prototyping
- One pager: expected
- Kickoff: not expected
Medium
- Type of work: new feature or significant change to an existing feature
- Design: 1 designer for 3 → 5 days
- Engineering: 1 engineer for 1 sprint
- Research: user testing, potential user research
- One pager: expected
- Kickoff: expected
Large
- Type of work: sizable new feature or redo to an existing flow
- Design: 1 designer for 5 → 10 days
- Engineering: 1 engineer for 1 → 2 sprints
- Research: user testing, expected user research
- One pager: expected
- Kickoff: expected
XL
- Type of work: significant new feature or redo of several flows
- Design: 1 designer for 10 or more days
- Engineering: 1 engineer for 2 or more sprints
- Research: user testing, expected user research
- One pager: expected
- Kickoff: expected