LBIST
Beginner
A self-test the chip can run on itself, without any outside test machines.
Novice
Logic built-in self-test: circuitry on the chip that generates test patterns, runs them through the logic, and compresses the results into a signature that is compared with the expected value. The chip can test itself without outside equipment.
Expert
Patterns from an on-chip generator are shifted through scan chains and the responses compacted into a signature. Used in the field to find latent faults; the run must fit the diagnostic test interval and power budget, and functional state must be saved or restored around it.
Explained in Automotive (Industries).