Seeing How Well a Team’s Story Points Align from One to Eight
Each column of data and pair of bars shows data from stories of the size given in the Points row. The first set of data is for one-point stories, the second set of data is for two-point stories and so on. Looking at the one-point data, we see that the median number of hours to complete a one-point story (at this company) was 21 hours. The shortest (From) took 6 hours and the longest (To) took 36 hours. The shortest and longest are shown in the green and blue bars above the table. The median is graphed as the red line.
Let’s look at the two-point stories. We see there a median effort of 52 hours and a range from 31 to 73. If we assume the 1-point stories were perfectly estimated, we would expect 2 point stories to have a median of 42 instead of the 52 we see here. Or perhaps the 2-point...read more