"XJTAG is designed by engineers for engineers and represents a major advance in testing/debugging techniques.
We looked at other boundary scan systems but opted for XJTAG due to the speed of fault diagnosis, reusability of scripts, and because their engineers were prepared to go that extra mile.
In addition, because XJTAG abstracts engineers from the level of the JTAG bitstream, it makes JTAG easier and more intuitive to use."