Diagnostics

A electronics test, debugging, or diagnostics method designed into the IC or circuit. The method observes the I/O buffers of a circuit or functional block and are controlled by scan cells.

A structured process which maximizes the effectiveness of diagnostics by integrating pertinent elements, such as testability, automatic and manual testing, training, maintenance aiding, and technical information as a means for providing a cost effective capability to unambiguously detect and isolate all faults known or expected in items and to satisfy system mission requirements. Products of this process are hardware, software, documentation, and trained personnel.