Search:
Failures with S-rating which have at least one effect
Explanation:
A search will be performed for failures that have an S rating assigned and additionally at least one effect.
Note:
- All failures of the .fme file are taken into account for this analysis. The failures that will appear in the results are causes which have an S rating assigned. Only top failures should have an S rating assigned.
- Top failures are failures that have causes but no effects.
Example:
Abbreviations
- ASIL = Automotive safety integrity level
- BF = Base failure of a base function
- BFn = Base function of a base structure element
- BSE = Base structure element
- Cl Prc = Classification for process characteristic
- Cl Prd = Classification for product characteristic
- Cl Req = Classification for requirement
- CM = Control method
- DA = Detection action
- DC = Diagnostic coverage
- DSCF = Dangerous safety critical failure
- Er Det = Error detection
- Er Resp = Error response
- F = Failure
- FIT = Failure in time
- Fn = Function
- FSM = Functional safety management
- IE = Inspection equipment
- LF = Latent fault
- LFM = Latent fault metric
- OC = Operating condition
- PA = Preventive action
- PE = Process element
- PFH = Probability of failure per Hour
- PMHF = Probabilistic metric for random hardware failures
- PrcC = Process characteristic
- PrdC = Product characteristic
- QM = Quality method
- QR = Quality rule
- Req = Requirement
- RMR = Risk Matrix Ranking
- RP = Reaction plan
- SE = Structure element
- SE ErDet = Structure element for error detections
- SE ErResp = Structure element for error responses
- SFF = Safe failure fraction
- SG = Safety Goal
- SIL = Safety integrity level
- SM = Organisational-SE for “safety mechanisms”
- SPF = Single point fault
- SPFM = Single point fault metric
- TF = Top failure of a top function
- TFn = Top function at root element
- TS = Test sample
- In this example, there are four structure elements, which have either two or four failures. With the correct display options set (here: Valuation & Failure net hot-click icon), it is possible to see which failures have Severity valuations and also if they are linked in a failure in direction of effects.
- A failure that is linked in the direction of effects will either have this icon
or
this one 
.
Search result: 
This example delivers 4 hits. The following failures are not top failures but have S ratings assigned: BF1, F2, BF6, BF7.