本标准描述了以数字形式传输裸板电气测试信息的数据格式，包括适用于计算机辅助维修的数据。当用作测试数据处理的网表输入时，IPC-D-356B数据接收器将确定测试点分配和定位。B修订版的改进包括更新可测试区域的概念，以说明SMD焊盘和异型焊盘，更新用于表示网络中所有层间连接的复杂记录，改进裸板图形表示的简单多边形描述格式，以及识别端点和中点的新方法。

This standard describes a data format for transmitting bare board electrical test information in digital form, including data suitable for computer-aided repair. When used as a netlist input to test data processing, the receiver of IPC-D-356B data will determine test point assignments and positioning. Enhancements to the B Revision include updates to the concept of testable areas to account for SMD pads and unusually shaped pads, updating of complex records for representing all inter-layer connections in nets, a simple polygon description format that improves graphical representation of the bare board, and new methods for identifying endpoints and midpoints.