Using VCC and GND Symbols
You can use VCC (power) and GND (ground) symbols to connect power and ground instead of manually routing wires across your schematic. This is a common technique used by professional engineers to improve the readability of schematics.
What is Cadence?
Cadence is an electronic computer-aided drafting (ECAD) program commonly used in industry for the design and simulation of electronic circuits and printed circuit boards. The following video by Casey Petersen describes the basics of Cadence:
