One of the markets for schematic diagram software is the industry of repair manuals. If you have ever handled a repair manual, let’s say for TV, MP3 players, DVD players, and others, you will see that it is greatly simplified. This simplification helps them easily understand the diagram. Non-essential parts of the equipment are eliminated. What the technicians would see are just the basic elements. Schematic diagram software are also probably used to draw diagrams for stickers containing schematics for the equipment located in the panels of electronics equipments.