Dangerous undetected failure rates propagation from FMEDA to FTA

medini_1028038066

Status : feature requested with Project Owner Priority : Major, #1 Schedule : (according to Project Owner)  Current state : not available Critisism on current state :  all the data is available in medini and this could be supported in the native tool implementaiton Objective of the change : faster and efficient workflow Proposed change : We wish for a semiautomatic approach to propagate each HW effect with its assigned safety mechanisms and diagnostic coverage to the FTA.  Original author: Peter Ploß: "NEW: How to efficiently propagate the dangerous undetected failure rate from FMEDA to FTA? We wish for a semiautomatic approach to propagate each HW effect with its assigned safety mechanisms and diagnostic coverage to the FTA.  Hint: This shall be done independently from safety goals as we want do derive the classification from the FTA. We have multilple FTAs, one for each safety goal. OLD: failure rates of a hardware part are not propagated to another "collecting" failure mode?! (example: "INTERLOCK: No function" that inherits "short circuit" from C1000 and "reduced value down to 0,5" from C1001 with 0.018 and 0.451 FIT respectively); it should be the sum of the allocated causes' failure rates, line 23"

medini_1028038066

Dear Peter, due to your request we have opened an internal ticket for review from the Product Management Team.  The requested functionality will not be provided, we will not allow a direct connection between FTA to FMEDA, but need to go through the model.When we move to Component Fault Trees (CFT), they will essentially contain faults/events together with the SM/diagnostic, where the value you are looking for will become part of the model and not only of the table as of now. We will keep you informed when the CFTs will be released.