T Shirt Sizing Estimation Template

High level estimates should be provided in t shirt sizes.

T shirt sizing estimation template. Small medium large and x large. Xs extra small s small m medium l large xl extra large. Project estimation through t shirt size. And by doing that for a few sprint cycles weve been able to establish a certain velocity to our engineering process.

Software project estimation is an age old problem and hence come with a lot of flavors. Saying it will take 328 person days implies the accuracy in the last digit which means 5 person days. Too many sizes may confuse the developers and the team so it is wise to stick to three or four sizes. Xs s m l xl.

Doing so forces us to use a very low precision which avoids creating a misconception of accuracy in the quote. During initial conversations i like to do what is called a t shirt size estimation. Just as in the case of t shirts we see sizes. Rather than using a number of planning pokers here items are classified into t shirt sizes.

Useful when quick and rough estimation needs to be done. You always estimate with more than one developer in the room so that there can be a good debate about confusing points. This is a perfect technique to give a rough estimation of the large backlog of items. Posts about t shirt sizing written by tara hamilton whitaker.

After understanding what the prospect is trying to accomplish i like to work together to have an initial estimate on the cost for the project. In this post i plan to cover t shirt sizing as an effective agile estimation technique to scope large amount of work in relatively less time without getting into analysis paralysis. But minimally put some underlying numbers on them eg medium5 and then gradually shift to using the numbers directly. T shirt sizing is one of the story points sizing technique to estimate user story usually used in agile projects.

Agile estimation with t shirt sizes. So start with them if your team finds that easier. One way to estimate using relative sizing is to use the t shirt sizes. I use t shirt sizes to come up with buckets for the estimate.

Its a relative estimation technique. By removing the implied precision of a numerical score the team is free to think in a more abstract way about the effort involved in a story. A similar approach is followed hereitems are estimated in t shirt sizes. Ive implemented the t shirt sizing estimation methodology which is based on estimating the complexity of the task not how much time it would take.