For information on how to best apply DFA, see Why DFA is important for your PCB design and development process.

　　For certain designs, in addition to normal functional testing performed during the prototype phase, testing may also be required. Moreover, this additional test may require you to expand the design to accommodate test equipment, such as adding test points or building test equipment for ROSE testing as needed.

　　For more information about DFT, see Design for Testability (DFT): Do you really need it?

　　For DFR (which should also be included in DFX), the goal is to make design decisions that, once installed and operational, will help improve the reliability performance of the circuit board. These choices will affect the manufacturing, assembly, and components used in your circuit board, as described in the following section.