Search:
Failures, error detections and error responses without effects and causes
Explanation:
A search will be performed for failures, error detections and error responses, which have neither effects nor causes in the failure net
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
- This example structure contains three structure elements, each of which have two failures (
) assigned and one structure element reserved as a safety mechanism, of which contains three error
detections ( 
) and three error responses (
).
- With the hot-click icon “Failure net” active (display options), it is possible to see in the structure list which failures and safety mechanismy are linked and which are not. How the failures are linked can be seen in either the Failure Net Editor or the Graph Editor.
- This Quality Rule will find all failures and safety mechanisms that have neither effects nor causes in the
failure net and can be recognized with the icon
.
Search result 
:
The following are hits for this example: TF2, F2 and BF2 as well as the error detection Er Det3 and error response Er Resp3