Are there non prescribed artifacts. So we're using three prescribed Scrum artifacts and whether you're speaking about prescribed, then it means that they are mandatory. But let's now talk about the artifacts which are not mandatory, but could be used in Scrum and they could be even pretty valuable. Let's quickly check them. So it's at least of their optional artifact isn't sometimes used by Scrum teams count could be pretty useful. I'm not going to review them in details because they are not part of the scrum.

But here they are. It's a burndown chart. It's all except on criterias. It's story points. It's planning worker velocity, and other artifacts that could be pretty valuable and useful for Scrum.