Where are these diagrams drawn?

Question

Software and Internet Services

correct the tag of this question, because I don’t know which one to put.

Here is a diagram where several parts are connected into a common "service" that will allow you to control the ws2812b LED via the Internet.
Is there a name for such schemes?
Advise rules for the image of such schemes?
Advise software that people use for this?

Answer 1

I would say "structural", because it paints the structure of a certain service in blocks. And I would draw in regular Visio :)

Answer 2

structurally - the draw.io service is suitable
if it is schematic - with the visualization of the work of elements there are online services or multisim
if the circuit diagram is according to guests - then autocad