For example in (Fig.7a), model predicts TPM3_PM_Forline as a recommended maintenance procedure in presence of 19 pressure Forline_Pirani alarms, zero RF_Gene_ouput bias alarms, and 3 alarms of pressure_chamber. In addition, the model predicts that likely failure is the Forline_Failure with 57% probability. Similarly, Fig. 7b presents that the same procedure TPM3_PM_Forline, with probability of 60%, in presence of different settings of alarms and warnings. The following table presents the predictions made by the learned BN model over 25% test dataset. The learned BN model is able to predict the most appropriate maintenance actions with 75% accuracy with alarms and warnings signatures.