These programs go beyond straightforward drawing of devices and connections. Usually they are integrated into the entire IC design flow and connected to additional EDA tools for simulation and verification of this circuit under design.
Schematic diagrams are used extensively in repair guides to help users understand the interconnections of parts, and also to supply graphical training to help out with dismantling and rebuilding mechanical assemblies. Lots of automotive and motorcycle repair manuals give a significant number of pages to schematic diagrams.
A schematic, or schematic diagram, is a representation of these elements of a system utilizing abstract, picture symbols as opposed to realistic images. A schematic generally communicates all details which aren't relevant to the information that the cheque is intended to convey, and might add unrealistic components that assist understanding. For example, a subway map intended for passengers could signify a subway station using a dot; the dot doesn't resemble the true station at all but provides the viewer information without unnecessary visual clutter. A schematic diagram of the chemical process utilizes symbols to represent the vessels, piping, valvesand pumps, and other equipment of the machine, highlighting their interconnection paths and suppressing physiological specifics. In an electronic circuit design, the design of these symbols might not resemble the layout from the circuit. From the schematic diagram, the emblematic components are arranged to be easily interpreted by the viewer.
A semi-schematic diagram combines a number of the abstraction of a purely schematic diagram along with different components exhibited as realistically as possible, for a variety of reasons. It is a compromise involving a purely subjective diagram (e.g. the schematic of the Washington Metro) and a completely pragmatic representation (e.g. the corresponding aerial view of Washington).
In electronic and electrical sector, a schematic diagram is often used to refer to the plan of equipment.  Initial schematics have been done manually, using standardized templates or pre-printed glue symbols, but today electronic design automation applications (EDA or"electric CAD") is often utilized.
In electrical power systems design, a design drawing called a one-line diagram is frequently utilized to symbolize substations, distribution methods or even entire electric power grids. All these diagrams simplify and compress the exact details that would be repeated on each individual phase of a three-phase method, revealing only one element rather than three. Electrical diagrams for switchgear often have common device functions designate by regular function amounts.
In electronic design automation, until the 1980s schematics were almost the sole proper representation for circuits. More recently, together with the advancement of computer technology, other specimens were introduced and technical computer languages were developed, as using the explosive growth of the complexity of electronic circuits, conventional schematics are becoming less functional.