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Safety mechanism list reference to malfunctions

medini_1005899080

Hi,

I want to have the following profile property:

I am attaching measuregroups with meachanisms to malfunctions to see them in the HARA. (SOTIF Measures).

Now I want to see where the measures are used.

--> list of all malfunctions which are using the mechanisms

--> list of HE where the malfunctions are used

Is there any way to find these relations with getMediniOposites?

Thanks,

Sven

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Accepted answers

medini_1023909254

Hi Sven,

I receive an Error, but when I remove the "safetyModel::" it works.

That's strange - which version of medini are you using?

Now I want to access the profile Property value "related hazardous events"

So you want to show the list of HEs in the table of the measures like this?

That should be possible with the following property for measure

self.getProfilePropertyValue('user_usage')->select(mf|mf.oclIsTypeOf(safetyModel::Malfunction)).oclAsType(safetyModel::Malfunction).user_hazardous_events

Where user_usage is the first derived property which lists all places where the measure group is used. As this may also contain other element kinds (e.g. failure modes, errors etc) we need to filter out the malfunctions using the select-statement.

Eckhardt

All comments

medini_1023909254

Hi Sven,

for your topics this can be achived with OCL as follows:

--> list of all malfunctions which are using the mechanisms

with a derived property for measure and assuming you have prevention and/ordetection measures in a measure group:

self.mediniGetOpposites('detectionMeasures')->union(self.mediniGetOpposites('preventionMeasures')).oclAsType(safetyModel::MeasureGroup).mediniGetOpposites('measureGroups')

--> list of HE where the malfunctions are used

Can you check whether the definition of Related hazardous events in the BestPracticeProject-Template fulfills your needs? It actually goes a little further as it does not only show the HEs where the malfunction itself is used but recursively follows the cause effect chain and shows also the HE's where the effects-malfunctions are used.

Best regards,

Eckhardt

medini_1005899080

Hi Eckhardt,

thanks for this answer. I receive an Error, but when I remove the "safetyModel::" it works.

Now I want to access the profile Property value "related hazardous events". (of the result, which is a list of malfunctions)

Thanks,

Sven

medini_1023909254

Hi Sven,

I receive an Error, but when I remove the "safetyModel::" it works.

That's strange - which version of medini are you using?

Now I want to access the profile Property value "related hazardous events"

So you want to show the list of HEs in the table of the measures like this?

That should be possible with the following property for measure

self.getProfilePropertyValue('user_usage')->select(mf|mf.oclIsTypeOf(safetyModel::Malfunction)).oclAsType(safetyModel::Malfunction).user_hazardous_events

Eckhardt