4.5.4. Difficulty in Handling Unknown Faults

Try these first

1. 1.

   What are unknown faults?

   Hint

   Think about what happens when a system encounters a failure it wasn't prepared for.

2. 2.

   How does BIST typically operate?

   Hint

   Remember, it's about self-testing!

3. 3.

   What is a primary limitation of BIST?

   • It cannot test itself
   • It cannot detect unknown faults
   • It is too complex

   Hint

   Reflect on the nature of BIST and its reliance on established patterns.

4. 4.

   True or False: BIST can handle all types of faults in electronic systems.

   • True
   • False

   Hint

   Think critically about what BIST was designed to do.

5. 5.

   Analyze a scenario where a critical electronic system depends solely on BIST and fails due to an unknown fault. What strategies would you suggest to predetermine and address such faults?

   Hint

   Consider both reactive and proactive strategies.

6. 6.

   Create a flowchart that describes a multi-faceted approach combining BIST with traditional methods to handle fault detection. Identify stages where knowledge and adaptability are central.

   Hint

   Think visually about the progression from automated diagnostics to human analysis.