A schematic, or schematic diagram, is a representation of those elements of a system using abstract, picture symbols as opposed to realistic images. A schematic generally communicates all details which aren't related to the information the schematic is intended to convey, and might add unrealistic elements that aid comprehension. By way of example, a subway map meant for passengers can signify a subway station using a dot; the scatter does not resemble the true station whatsoever but gives the viewer info without any unnecessary visual clutter. A schematic diagram of this chemical procedure utilizes symbols to represent the valves, ducts, valvesand pumps, and other elements of the machine, highlighting their interconnection controlling and paths physiological details. In an electronic circuit structure, the layout of the symbols may not resemble the layout in the circuit. In the design diagram, the symbolic components are arranged to be more easily interpreted by the viewer.
In electronic and electrical industry, a schematic diagram is often utilized to refer to the plan of gear. Schematic diagrams are usually used for the maintenance and repair of electronic and electromechanical systems.  Initial schematics were done by hand, using standardized templates or off-the-shelf adhesive symbols, however today electronic design automation applications (EDA or"electric CAD") is often utilized.
Schematic diagrams are used widely in repair guides to help users understand the interconnections of parts, and to offer graphical instruction to help out with rebuilding and simplifying mechanical assemblies. Lots of motorcycle and automotive repair manuals devote a significant number of pages into schematic diagrams.
In electric power systems design, a design drawing called a one-line diagram is often utilised to represent substations, distribution methods or even entire electrical power grids. All these diagrams compress and simplify the exact details which would be repeated on each stage of a three-phase system, revealing only 1 component rather than three. Electrical diagrams for switchgear often have common apparatus functions designate by standard function amounts.
In electronic design automation, even until the 1980s schematics were virtually the only proper representation for circuits. More recently, with the progress of computer technology, other specimens have been introduced and specialized computer languages were developed, as with all the explosive growth of the complexity of digital circuits, conventional schematics are becoming less functional.
A semi-schematic diagram unites a number of these abstraction of a purely schematic diagram with other elements displayed as realistically as you can, for a variety of factors. It is a compromise between a purely abstract diagram (e.g. the design of the Washington Metro) along with an exclusively pragmatic representation (e.g. the corresponding aerial perspective of Washington).
Schematics for electronic circuits are ready by designers using EDA (electronic design automation) tools known as schematic capture applications or schematic entry applications. These programs go beyond straightforward drawing of devices and connections. Usually they're incorporated into the whole IC design flow and linked to additional EDA tools for simulation and verification of this circuit under design.