In electrical and electronic sector, a schematic diagram is often utilized to refer to the plan of equipment. Schematic diagrams are usually used for the upkeep and repair of electronic and electromechanical systems.  Initial schematics have been done by hand, with standardized templates or pre-printed glue symbols, however today electronic design automation software (EDA or"electric CAD") is often used.
In electric power systems layout, a schematic drawing known as a one-line diagram is frequently utilised to represent substations, distribution methods or even entire electric power grids. All these diagrams compress and simplify the exact details which would be repeated on each individual stage of a three-phase method, revealing just 1 component instead of three. Electrical diagrams such as switchgear often have common apparatus functions designate by standard function numbers.
A design, or schematic diagram, would be a representation of the elements of a system using abstract, graphic symbols rather than realistic images. A schematic generally communicates all details which are not relevant to the information the schematic is meant to communicate, and might add unrealistic components that assist understanding. By way of example, a subway map intended for passengers can represent a subway station with a dot; the scatter does not resemble the actual station whatsoever but provides the viewer information without unnecessary visual clutter. A schematic diagram of a compound process utilizes symbols to represent the valves, ducts, valves, pumps, and other equipment of the system, emphasizing their interconnection paths and suppressing physiological information. In a digital circuit diagram, the design of the symbols may not resemble the layout in the circuit. In the schematic diagram, the emblematic components are organized to be easily interpreted by the viewer.
In electronic design automation, even before the 1980s schematics were the only formal representation for circuits. More recently, together with the advancement of computer technology, other specimens have been introduced and technical computer languages were developed, as using the explosive rise of the complexity of electronic circuits, conventional schematics are becoming less practical. By way of instance, hardware description languages are indispensable for modern electronic circuit design.
A semi-schematic diagram unites a number of these abstraction of a purely schematic diagram along with other components exhibited as realistically as you can, for various factors.
Schematic diagrams are used extensively in repair guides to help users understand the interconnections of parts, and to provide graphical instruction to help out with dismantling and rebuilding mechanical assemblies. Lots of automotive and motorcycle repair manuals give a substantial number of webpages on schematic diagrams.
Schematics for electronic circuits are prepared by designers using EDA (electronic design automation) tools known as schematic capture tools or schematic entry tools. These tools go beyond easy drawing of connections and devices. Normally they are incorporated into the whole IC design flow and linked to additional EDA tools for simulation and verification of the circuit under design.