People have been designing Printed Circuit Boards (PCBs) for a long time. The process has passed from entirely manual steps to the highly-sophisticated use of Computer Aided Design (CAD) methods.
The road from initial design to manufacture is a bumpy one at the best of times. It only takes a slip at an early stage, and budgets and timelines can spiral dangerously out of control. One part of the process that needs to go smoothly, and with no surprises, is the creation of Printed Circuit Board (PCB) prototypes.