Here is a technical variant of a design diagram. The principle purpose of this diagram will be to show the logic (speaking to electric management ) of a circuit board. This really is the one I mainly come across in my own line of work, and it's very successful for troubleshooting issues or learning the way the circuit works. Some frequencies are so huge that many kinds of schematic diagrams need to be read in increments in book form (generally with coded numbers so that info can be easier found). Again, here is the exact exact circuit as the first two, however, considering it in ladder shape.
A design diagram refers to a specific sort of circuit structure that utilizes standard electrical/electronic symbols instead of pictures to demonstrate how a circuit (or a part of it) functions. Below is a typical 3-wire motor control circuit utilizing a standard momentary stop - start pushbutton channel working with a schematic diagram. (Momentary here means that the button/switch you activate will go back to its default place once you physically let go of this, usually by a spring that compels the button/switch to get this done.)
Pictorial design diagrams, or graphic circuit diagrams are basically the same thing with exactly the exact identical purpose, however they use images of components inside the circuit rather than symbols. Again, here is the identical exact circuit (almost except a control transformer was added and they are using conductors L1 and L3 instead of L1 and L2.
Much less clutter? I've got enough info in each of these diagrams to know exactly what this circuit does and where to search for problems. Hope that this helps. ( Note: don't confuse circuit or schematic diagrams together with wiring diagrams; wiring diagrams will often demonstrate images of elements such as the pictorial, and also the way the entire or portion of a circuit has been wired. The difference is that wiring diagrams generally put an emphasis on real physical location of necessary elements relative to each other that essentially tell a layman Just What to do about the wiring)
Here's another schematic diagram demonstrating precisely the identical circuit, connections and components and it seems different but they fall into exactly the same category.
Think of it this way; a circuit structure is any type of diagram which illustrates how a circuit functions where the main purpose is that the appropriate wiring of components and their relationship to each other rather than physical place relative to one another or intending prototypes. However, in some applications Assessing diagrams can be challenging so choose this as general advice. I have found this is particularly true when working with more complex circuits and electronics. I'm going to use a more straightforward but average industrial circuit since these circuit setups are exactly the same, but where you can observe how each kind of diagram indicates the operation of the circuit in their own manners.