Performance requirements for electronic devices are constantly growing. The requirements put on printed circuit boards (PCBs) as a basis of these devices are growing in the same way. Without powerful EDA tools being available, the design of modern PCBs with high packing density would no longer be possible. Since each PCB must be optimally fitted to the intended application, many possible variations emerge. Professional EDA tools must therefore offer extreme variability. Manuals with more than 1000 pages are necessary to enable the user to apply these tools. Despite these aids, the tools can actually be used only with a lot of experience and fundamental technical knowledge.