From XXS to XXL

Here the result of 18 mandays of work, i.e. 18 people during 1 day in a meeting room and going through the necessary items that still need to be developed for the project.

The grouping from XXS to XXL represents the estimated, relative workload in points. XXS is 0.5 points, XXL represents 13 points. The points can then be transferred into mandays and serve as a basis for the project planning.

If you like mathematics: the sequence from XXS to XXL follows the idea of the Fibonacci sequence, i.e. each subsequent number is the sum of the previous two. We start with XXS=0.5 and XS=1, therefore S=2 (0.5 + 1, yes it is rounded, workload estimates anyway). Then M is the sum of 2+1=3, ..., up to XXL with a value of 13.