Moreover, when SMHA fails to identify a hazard that
rears its ugly head later, it can be that the underlying
blackbox model is just not detailed enough to expose the
hazard condition. Indeed, as deployed systems are discovered
to present hazards that were not anticipated, a
revision of the blackbox model is in order.
The same observation holds for other hazard identification
techniques including forward simulation, HAZards
OPerability analysis (HAZOP), or deviation analysis, and
others described in detail in [3].