T-Shirt-Size Estimations

T-Shirt Size Estimation

T-Shirt Size Estimation
by Pete R.

T-shirt sizing is a technique through which relative sizing is practiced. Through comparison of stories, one can break them down into buckets of an extra-large, large, medium, small, and extra-small. Estimating absolute time or effort is not as important evaluating in relative buckets.

It is vital to understand how things compare to one another to get a rough idea and not waste time on false precision.

How Is T-Shirt Size Estimation Done?

Each team would establish the size of the story that is relative to that of others. For a team, the medium might be twice as small as a big, or for another team, it might be three times as small. The most important thing is that the relative sizes have to be consistent over time. Once this has been established, one can use the estimations for achieving predictable releases.

When to Use T-Shirt Size Estimation?

The following Scrum process requires T-shirt size estimation.

For Product Backlog

It needs to be used for the product backlog since it is a collection of epics, themes, and user stories.

User Stories

These are the most important stories which are placed at the top of the product backlog. They are scheduled to be implemented by the next iterations. Granular user stores require T-shirt size estimation as each story would need to deliver tangible value to the product owner.

Themes

Themes come further down the product backlog stack. They are a collection of several related user stories. The user stories need to be also groomed using the T-shirt size estimation before they can be ready for implementation.

Epics

Finally, at the bottom of the product backlog, one would find the epics. As the name implies, an Epic is a collection of several to even more than a hundred user stories. T-shirt size estimation is used for checking the performance of the epics.

Pros of T-Shirt Size Estimation

  • When it comes to affinity estimation, it is handy.
  • It is excellent through which terms can be introduced to relative estimating.
  • Forcing the estimate into a fixed set of sizes would lead to the process is quicker.
  • It is a prevalent agile relative estimation method.
  • Known for being a very straightforward strategy. T-shirt size estimation can be utilized rather quickly with a vast amount of items.

Cons of T-Shirt Size Estimation

  • Not useful if relative sizes are not consistent.
  • May be challenging to adapt to for new members who have never used the technique.
  • Not as useful for all types of estimation such as ones which cannot be defined in relative terms

Conclusion

The main advantage of T-shirt size estimation is the ease through which it can be started. It is a great way of becoming accustomed to relative estimation. Hence, it is important to start them if the team finds it to be easier. Underlying numbers would need to be put to shift using the numbers directly for better performance gradually.


Long Term Jobless? Why Part-Time Jobs Can Help You to Find Your Path.

Long Term Jobless? Why Part-Time Jobs Can Help You to Find Your Path.

Regardless of how the Stock Market may be doing, it's jobs that are the real measure of just how far our recovery has come. And, by that bellwether, we've gone nowhere. Jobs run the economy, give us...

by Amy Q.
5 Key Tips to Spice-Up Your CV

5 Key Tips to Spice-Up Your CV

When writing a CV there is always things we wish were different. We play with styles, outlines, and follow guides to try and perfect our CV, but nothing seems to work. CV’s are a useful resource to...

by Amy Q.
Listen to Your Health - Reduce Strain at Work

Listen to Your Health - Reduce Strain at Work

Work is meant to be enjoyed as it offers an individual an opportunity to learn, improve the self, interact with other people and earn. However there can arise situations where one goes through so much...

by Amy Q.
How to Give Positive Feedback to a Colleague

How to Give Positive Feedback to a Colleague

Giving feedback is an essential component of team development in any company or working situation. This enables for an easy assessment of how effective your working relations are and the progress of...

by Amy Q.
5 Tips to Pitch Your Ideas to Your Boss

5 Tips to Pitch Your Ideas to Your Boss

You have a bright idea to improve things in your workplace.But how would you get your splendid idea from thought rise to reality?As anew hire at entry level job, internship or early-vocation position,...

by Amy Q.
You Deserve it - 5 Vital Tips to Get a Pay Raise

You Deserve it - 5 Vital Tips to Get a Pay Raise

Being in a work setting, you often find yourself wishing you made more money or worked more hours. However, you find yourself stuck and don’t know how to go about asking your boss for more money or...

by Amy Q.