As many other projects we have to estimate our jira tasks up front. This is obviously not fun and I've started hacking on a simple webapp to "gameify" this tedious process.
My idea is that an issue summary and description is presented to all participants and that when everyone has provided an upper plus a lower estimate the results are displayed to everyone. I prefer estimating in intervals instead of fixed points as it communicates uncertainty.
- If I ask each participants something in the line of "provide a lower and upper estimate you feel 90% certain will contain the actual number of hours required to complete this task" - is this a 90% confidence interval?
My end goal is to reduce this to a single point estimate that can be fed into Jira + something that communicates the uncertainty related to this estimate.
What would be the best / most "correct" way of reducing the suggested intervals into a single fixed number of hours?
What would be a good indicator of the uncertainty / spread of the estimates?