In electronic design automation, even until the 1980s schematics were the only formal representation for circuits. More recently, together with the progress of computer technology, other specimens have been introduced and technical computer languages were developed, as using all the explosive rise of the complexity of electronic circuits, traditional schematics are becoming less practical.
In electrical power systems design, a design drawing referred to as a one-line diagram is frequently utilised to represent substations, distribution methods or even whole electric power grids. All these diagrams compress and simplify the exact facts which would be replicated on each stage of a three-phase system, showing just one element instead of three. Electrical diagrams for switchgear frequently have common device functions designate by regular function numbers.
A design, or schematic diagram, would be a representation of those components of a system using abstract, picture symbols rather than realistic pictures. A schematic usually omits all details that aren't related to the advice that the cheque is meant to convey, and may add unrealistic components that assist understanding. For instance, a subway map meant for passengers can signify a subway station using a dot; the dot doesn't resemble the true station whatsoever but provides the viewer info without unnecessary visual clutter. A schematic diagram of the chemical process uses symbols to represent the valves, ducts, valves, pumps, and other elements of the machine, highlighting their interconnection controlling and paths physical specifics. In an electronic circuit structure, the design of the symbols may not resemble the design from the circuit. In the design diagram, the emblematic elements are arranged to be more easily interpreted by the viewer.
A semi-schematic diagram unites a number of these abstraction of a purely schematic diagram with different components exhibited as realistically as possible, for a variety of reasons.
These instruments go beyond easy drawing of connections and devices. Normally they're incorporated into the entire IC design flow and also connected to additional EDA tools for verification and simulation of the circuit under design.
Schematic diagrams have been used extensively in repair guides to help users understand the interconnections of components, and also to give graphical instruction to assist in dismantling and rebuilding mechanical assemblies. Many motorcycle and automotive repair manuals devote a significant number of pages into schematic diagrams.
In electronic and electrical business, a schematic diagram is frequently used to describe the plan of equipment.  Initial schematics have been done manually, using standardized templates or pre-printed glue symbols, but now electronic design automation applications (EDA or"electric CAD") can be utilized.