These programs go beyond straightforward drawing of devices and connections. Normally they are incorporated into the whole IC design flow and also connected to other EDA tools for simulation and verification of the circuit under design.
Schematic diagrams have been used extensively in repair guides to help users understand the interconnections of parts, and to give graphical instruction to assist in dismantling and rebuilding mechanical assemblies. Many motorcycle and automotive repair manuals give a significant number of webpages into schematic diagrams.
A schematic, or schematic diagram, is a representation of those components of a system using abstract, picture symbols instead of realistic images. A schematic generally communicates all details that are not relevant to the advice that the cheque is intended to communicate, and might add unrealistic elements that assist understanding. For instance, a subway map meant for passengers may represent a subway station with a scatter; the scatter does not resemble the actual station at all but gives the viewer information without unnecessary visual clutter. A schematic diagram of the chemical procedure uses symbols to represent the vessels, piping, valvesand pumps, and other equipment of the system, emphasizing their interconnection paths and suppressing physiological specifics. In a digital circuit design, the design of the symbols might not resemble the design from the circuit. In the schematic diagram, the emblematic elements are arranged to be more easily interpreted by the viewer.
A semi-schematic diagram combines a number of the abstraction of a purely schematic diagram along with different elements exhibited as realistically as possible, for a variety of factors.
In electrical and electronic business, a schematic diagram is often utilised to refer to the plan of equipment.  Original schematics have been done manually, using standardized templates or pre-printed glue symbols, but today electronic design automation software (EDA or"electrical CAD") is often employed.
In electric power systems layout, a design drawing known as a one-line diagram is frequently used 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 phase of a three-phase method, showing just one element rather than three. Electrical diagrams such as switchgear frequently have common device functions designate by standard function numbers.
In electronic design automation, even before the 1980s schematics were the sole formal representation for circuits. More recently, together with the advancement of computer technologies, other specimens have been introduced and technical computer languages have been developed, since with the explosive development of the complexity of electronic circuits, conventional schematics have become less functional. By way of instance, hardware description languages are indispensable for modern electronic circuit design.