BITE is an acronym for Built In Test Equipment. See BIST

Built-in self-test

A built-in self-test or built-in test is a mechanism that permits a machine to test itself. Engineers design BISTs to meet requirements such as:*high reliability*lower repair cycle timesor constraints such as:...

(Built In Self- Test).
The BITE is characterized primarily as a passive fault management

Fault management

In network management, fault management is the set of functions that detect, isolate, and correct malfunctions in a telecommunications network, compensate for environmental changes, and include maintaining and examining error logs, accepting and acting on error detection notifications, tracing and...

 and diagnosis

Diagnosis

Diagnosis is the identification of the nature and cause of anything. Diagnosis is used in many different disciplines with variations in the use of logics, analytics, and experience to determine the cause and effect relationships...

built into airborne systems to support the maintenance process.

The acronym BIT is often used for this same function or, more specifically, in reference to the individual tests. BIT is an acronym for Built In Test.

The term BIT often includes :-

• The detection of the fault
• The accommodation of the fault (how the system actively responds to the fault)
• The annunciation or logging of the fault to warn of possible effects and/or aid in troubleshooting the faulty equipment.

Functionality

• Analysis of failure monitoring results
• Reporting & Memorization of failures
• Management of tests