- Risk: Death of Achilles.
- Asset: Achilles' life.
- Vulnerability: Achilles' heel. (Achilles was invulnerable, save the portion of his heel where his mother held while dipping him in the River Styx. This is the most popular version of the myth.)
- Threat: Paris, who shot Achilles in the heel with an arrow.
- Exploit: The arrow show by Paris.
Let's now look at an example from one of the best movies of all time: The Karate Kid. I'll use Daniel's point of view.
- Risk: Loss of tournament, thereby letting Johnny Lawrence win.
- Asset: Daniel LaRusso's fighting ability.
- Vulnerability: Leg injured in previous fight.
- Threat: Johnny Lawrence.
- Exploit: Strike to the injured leg.
Man, that was funny. Here is the third example, from Star Wars. (Don't make me quote the episode -- this is geeky enough already.) I'll use the Empire's point of view.
- Risk: Loss of the Death Star and Imperial prestige.
- Asset: The Death Star.
- Vulnerability: "An analysis of the plans provided by Princess Leia has demonstrated a weakness in the battle station... It's a small thermal exhaust port, right below the main port. The shaft leads directly to the reactor system. A precise hit will start a chain reaction which should destroy the station."
- Threat: X-Wings, e.g: "[T]he Empire doesn't consider a small one-man fighter to be any threat, or they'd have a tighter defense." (Bravo Lucas!)
- Exploit: "The shaft is ray-shielded, so you'll have to use proton torpedoes."
Getting the hang of it? Try representing the Star Wars example from the Rebellion's point of view. It's fun, really.