The design of this experiment came about quite organically. On my bachelor studies I had to work a lot with graphic design and CAD tools, which I enjoyed a lot. If it's possible to add a note on any place in a two-dimensional space, in order to create order, it's also necessary to have configurable constraints; or snaps, as you would have on Adobe Illustrator, for example. These snaps or constraints help the user place visual elements in alignment with other elements.