# PAL-VMEA: A Novel Method for Enhancing Decision-Making Consistency in Maintenance Management
## 7 Results and Discussion
If there was information about the leak over time, the decision-makers' opinions would likely converge on the truth zone (due to the more consistent monitoring data). * The F6 factor, associated with the sensitivity of Sub-KPC to NF, is equal to 9, demonstrating a very high sensitivity, i.e., a change in the NF is very likely to cause a significant deviation in Sub-KPC. Being practically on the edge of the Truth zone, the result is an indication that the existence of leaks directly affects the volume of oil, regardless of the variability of the leak. As the variation in volume is directly proportional to the variation in leakage, the opinions of decision-makersconverged with full certainty to identify that the volume of oil is affected by any occurrence of leakage. * The seventh factor, F7, is also associated with the sensitivity of Sub-KPC to NF. Its value is equal to 8, indicating a high sensitivity, i.e., a change in noise factor is likely to cause a significant deviation in Sub-KPC, and it is located at the Quasi-true tending to paracomplete zone. Despite the lack of consistent data regarding the variability of the clogging, characterizing the lack of information for decision-making, the opinions of decision-makers converge. This agreement occurs because if there is any indication of clogging, there will be a great influence on the oil volume, as the failure mechanism is known. * The last and eighth factor in this analysis, F8, is also associated with the sensitivity of Sub-KPC to NF. With a value equal to 10, result is found in the zone of Truth. The analysis was based on the concept of functional failure. A very small leak could be compensated by the action of the compressor, not leading to the loss of function of the air-oil accumulator. However, when there is an impact on the function of the equipment, any variation in leaks affects the air pressure. Thus, the opinions of the decision-makers converged with full certainty to identify that the air pressure has a high sensitivity due to the variability of leaks. The method was applied to all other considered subsystems, totaling 10 subsystems. The number of KPCs, Sub-KPCs, and NFs varies significantly from case to case, totaling more than 140 analyzed factors. From all of these analyzes, the conclusions regarding the positioning of the weights in the USCP were reached as presented in Table 16. \begin{table}
\begin{tabular}{c c} \hline \hline
**USCP Zones** & **Results Discussions** \\ \hline \multirow{6}{*}{Zone of Truth} & The evaluators understand (believe) and agree with the proposed failure mode cause and effect mechanism, having sufficient information (well-defined physical principles or measurement data) to analyze the mechanism during the system operation and have a converging opinion \\ \cline{2-3}  & The evaluators have doubts, disbelief, do not \\  & understand or do not agree with the proposed failure \\ \cline{2-3}  &  mode cause and effect mechanism, although they \\ \cline{2-3}  & have sufficient information for the analysis (measurement data) and their opinions are \\ \cline{2-3}  & & \\ \cline{2-3}  & The evaluators’ opinion is divergent, regardless of \\ \cline{2-3}  &  their agreement or belief in the proposed failure \\ \cline{2-3}  &  mode cause and effect mechanism and the level of \\ \cline{2-3}  &  information available \\ \hline \multirow{6}{*}{Paracomplete zone} & The information available for the analysis of the \\ \cline{2-3}  & failure mode during the system operation is \\ \cline{1-1}  &  insufficient, regardless of the evaluators agreement or \\ \cline{1-1}  & belief in the proposed cause and effect mechanism \\ \cline{1-1}  & and the convergence of their opinion \\ \cline{1-1} \cline{2-3}  & & \\ \cline{1-1} \cline{2-3}  & & \\ \cline{1-1} \cline{2-3}  & & \\ \cline{1-1} \cline{2-3}  & & \\ \cline{1-1} \cline{2-3}  & & \\ \cline{1-1} \cline{2-3}  & & \\ \cline{1-1} \cline{2-3}  & & \\ \hline \hline \end{tabular}
\end{table} 
Table 16: Results discussion regarding Unitary Square on the Cartesian Plane (USCP) zones.