When asked about the quality of software, most often we show defect charts, coverage metrics to give a image of quality. What if we visualised it far better? The picture below shows a brilliant visualization of the growth of baby in the mother’s womb. It is just more than metrics like weight and volume. It shows the actual growth in terms of mass, shape and the organs. And this is the inspiration behind “Cleanliness index” the measure of quality in HBT and the visualization of the same.