Less mess? I have enough information in all these diagrams to know precisely what this circuit does and also where to start looking for issues. Hope that this helps. ( Note: do not confuse circuit or schematic diagrams with wiring diagrams; wiring diagrams will often demonstrate images of components such as the pictorial, and also the way the whole or portion of a circuit has been wired. The difference is that wiring diagrams typically place an emphasis on real physical place of necessary components relative to each other that essentially tell a layman Just What to do concerning the wiring)
A design diagram refers to a particular type of circuit diagram which uses standard electrical/electronic symbols rather than images to show how a circuit (or portion of it) works. Below is a typical 3-wire motor controller circuit using a typical short stop halt - start pushbutton channel working with a schematic diagram. (Momentary this means that the button/switch you trigger will return to its default position once you physically let go of this, typically by a spring which compels the button/switch to do this.)
Here's a variant of a design diagram known as a ladder structure. The principle aim of this diagram will be to show the logic (speaking to electric management ) of a circuit. This really is the one I mostly encounter in my own line of work, and it's extremely successful for troubleshooting problems or learning how a circuit works. Some circuits are so huge that many types of schematic diagrams have to be recorded in increments in novel form (usually with coded numbers so that information can be simpler found). Again, here is the same specific circuit because the first two weeks, but looking at it in ladder shape.
Here's another schematic diagram demonstrating the same circuit, components and connections and it appears different but they both fall into the same category.
Pictorial design diagrams, or graphic circuit diagrams are basically the identical thing with the same function, however they use pictures of components within the circuit rather than symbols. Again, here is the exact identical exact circuit (almost except a control transformer was added and they're using conductors L1 and L3 rather than L1 and L2.
Consider it this way; a circuit structure is any sort of diagram which demonstrates the way the circuit operates where the most important goal is that the appropriate wiring of elements and their relationship to each other rather than physical place relative to each other or intending prototypes. Nevertheless, in some uses classifying diagrams can be challenging so do this as overall information. I've found this is especially true when working with much more complicated circuits and electronics. I'm going to use a more straightforward but average industrial circuit since these circuit set ups are exactly the same, but yet where it is possible to observe how each sort of diagram shows the function of the circuit in their own ways.