JTAG JOINT EUROPEAN TEST ACTION GROUP was established by the Europe Institution in 1985, in order to research the test of volume circuit .
After cooperating with the North American,The name was changed into JTAG(JOINT TEST ACTION GROUP).
The IEEE1194. 1 testing interface and board scan structure [IEEE1149. 1b 1194] were put out in base of JTAG 2. 0 testing testing standards in 1990, it also becomes the standards of ANSIAMERICAN NATIONAL STANDARDS INSTITUTE