total SPF FIT into Safety Goal overview

Question

Hello together,

has somebody already a solution for the profiling under safety goal. To make a sum out of all Total SPF Failure Rate from the DC worksheets?

See the column which I mean:

Background, we want to calculate the reliability of a behavior and we work with multiple dc worksheets and multiple SGs for one product.

Thanks

Patrick

medini_1055247464 · Answer

seams to be working, we will check in detail the next days and let you know.

Thanks

medini_1023909254 · Answer

Hi Patrick,

Variants are an additional concept introduced purely for DC Worksheets since version 2022R1. Anyway, I have had a look on what you want to achieve and came up with  a solution in OCL (probably the same could be achieved in Javascript). You would define it as a derived property for Safety Goal:

self.mediniGetOpposites('safetyGoal')->select(ws|ws.oclIsKindOf(dc::DCWorksheet)).oclAsType(dc::DCWorksheet).getTotalSpfFailureRate(self.oclAsType(ecore::EObject))->sum()

There are two constraints to have the calculation done:

* The DC Sheet contains no variants
* On the cover sheet of all DC Worksheets the option "Individual Evaluation" is active (even if only a single SG is analyzed in the sheet)

And of course  no overlap of components in different DC Sheets.

Just come back to us and tell whether it is working as you need it to work.

Eckhardt

medini_1055247464 · Answer

Hey Eckhardt,

to the first part.

to 1. yes we several SGs which will go through several DCs, but not one SG with one DC sheets, the DC sheets are sub circuits.

to 2. yes

to 3. display in SG Table Editor, in metrics section it is already visible see above screenshot.

to the second path

to 1. yes we are using individual evaluation function

to 2. what you are meaning with variants? at the end of the day one database showing one product, there is no direct variant usage in medini, we are using pure variants for variant management and for sure we can show results only in exported version.

to 3. yes we are sure that one component is only onetime available.

to be honest that is actually the problem we are using full possibility of medini for complex products, we have many Architectual elements plus many of SGs or high level Safety Requirements or reliability requirements. some numbers we have up to 10 high level requirements and up to 20 dc sheets, i didn´t want to scale them every time manually.

Thanks Patrick