The PAAG method describes a systematic procedure for finding possible deviations and faults in systems of all kinds. The method, which is identical to the HAZOP (Hazard and Operability) method, has become established in particular as a safety engineering tool in the process, pharmaceutical and petrochemical industries, but is now also finding its way into the automotive sector. The acronym PAAG stands for the four steps: prognosis (systematic search for possible deviations and faults), finding the causes (determining the causes within the system under investigation), estimating the effects (determining the logical consequences of the deviation), countermeasures (evaluating existing measures and deciding on appropriate further countermeasures). Characteristic for the procedure is the process as a methodical, guided brainstorming in a group of experts from different disciplines.
