Castle Analogy
Contents |
Resilience Strategy : Representation
Original two phase strategy
Separate real-time and background processes (based on idea proposed by Marcus)
Both real-time and background processes in the same figure
Resilience Strategy : Castle Analogy
Defence: Strong Walls and heavy gate
Defend: Have strong walls and keep the gate closed
Challenge : Barbarians at the gate!
Scenario 1: Barbarian tools don't even scratch the stone wall...no errors are are detected (NO DETECT STAGE)
Scenario 2: Barbarians bring a Trebuchet along, it starts damaging the wall, stones are coming out.......
Detect : Detect the damage occurring to the wall. (reason unknown)
Remediate : Throw stones from the top of the caste; pour boiling oil on the troops below.
Recover: After the attack is over (and assuming the castle was held), repair the damages to the wall and gate to bring it back to previous strength.
Diagnose: Find what was the cause of the damage to the walls : current walls cannot withstand Trebuchet attacks
Refine: Reinforce the walls and gate to withstand future Trebuchet attacks.
Overall Block Diagram
Strategy Design
