T-Shirt sizing is a sizing standard that is used to estimate Feature effort in the analysis stage of the ART Kanban. T-Shirt sizing is a relative estimation technique that uses predefined categories, such as XS, S, M, L, XL, to assign a size to a Feature based on its complexity, uncertainty, and dependencies. T-Shirt sizing is a quick and simple way to compare and prioritize Features without getting into too much detail or precision. T-Shirt sizing also helps to calculate the Weighted Shortest Job First (WSJF) value of a Feature, which is a prioritization method that considers the cost of delay and the job size.
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ART and Solution Train Backlogs - Scaled Agile Framework
ART Kanban - Scaled Agile Framework
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Program and Solution Kanbans - Scaled Agile Framework
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