Search:
Revision states with undesirable successors
Explanation:
A search will be performed for action states which have “no further revision planned” but do have anchored failures with revision states assigned. States that have been “rejected” are not considered.
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 consists of three structure elements, each with four failures assigned. The revision states are all anchored at base failures (BF).
- This Quality Rule finds states, which firstly have the attribute “no further revision planned” (via Properties dialog), but have at least one revision state that follows it. This example has four states with the mentioned attribute set.
- Using the structure list, it is possible to analyze which objects will be hits in this search. The initial state of BF1 has the attribute “no further revision planned” but has a further revision state planned. This is a hit. The following two states with the attribute set are not hits. This is because the first does not have any further revision planned and the second does but it has been rejected and as such is not considered in this QR search. The fourth state with the attribute set is a hit.
Search result: 
This search delivers two hits.