This part of IEC 61182 specifies data file formats used to describe printed board and printed board assembly products in sufficient detail for tooling, manufacturing, assembly, and testing requirements. These formats may be used for transmitting information between a printed board designer and a manufacturing or assembly facility. The files are also useful when the manufacturing cycle includes computer-aided processes and numerically controlled machines. The information can be used for both manual and digital interpretation. The data may be defined in either English or SI units.