Schematic file created and used by gEDA, a collection of tools used to design PCB layouts and electronic schematics; contains data that makes up the schematic; includes the gEDA/gaf format version, pictures, and XY coordinates for nets, buses, and components.

Electronic schematics consist of a collection of symbols, or components, nets, and buses. They are used during the schematics capture process in circuit design and once it has been created, it can then be passed to the printed circuit board design process.

File created by the Shematic Capture Editor program included in KiCad, a tool suite used for designing PCB layouts and electronic schematics; saves an electronic schematic as it is laid out on the program's drawing canvas.

Electronic schematics are used during the schematics capture process in circuit design. Once the electronic schematic has been created, it can then be passed to the printed circuit board design process.

File used by Strater, a program used for visualizing subsurface borehole and well log data; specifies the nomenclature (keywords, data range, lithology, etc.) and the display properties (line, text, symbol, fill, etc.) for design elements that use the nomenclature; enables designs to be created according to standards.

Strater schemes can be created and edited in the Scheme Editor, which is accessed by selecting Tools → Scheme Editor... from the application menu.

Project file created by SuperCard, a visual authoring tool for Mac OS X; stores data for a help project, which contains indexable help content; used for extending the SuperCard Help System.