I have the same understanding of the context. For example for me the context would be a meeting I run. There is a number of people in the meeting room. I present somethings and some thoughts/concepts I illustrate sketching them on the flipchart. That sketch will be a part of the materials send to all participants.
Another context for me is my blog where i want to use my sketches as a images illustrating what I write about. They will be part of the blog post itself but also will be used when posting links to these post on facebook, as a main image.
I hope that this helps 🙂
Greetings from Kraków!