Finding the starting/ending functions of a FC using P4C

Scripting
1

Hi, I am teaching myself Arcadia/Capella, so I might be missing something.

As in the title, after I have managed to get all functions and functional exchanges, I couldn’t find any way to specify which function is the starting and which is the ending. I have tried multiple approaches, like assuming no loops, or using MSM to handle special cases. But in the end, I still could not resolve this problem: How can Capella indicate the starting/ending function in general?

Below is an example with loops and multiple starting/ending functions

Regards

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2

Hello Ayman,

You can describe a Functional Chain in a xFCD. You must double-click on the FC square to create the diagram describing it (below your System on your picture). Also, please note that ARCADIA distinguish data flows and sequence flows.

Matthieu

3

Hi Ayman,

You can call queries from the semantique browser wwith Python for Capella:

capella_query_by_name(myFunctionalChain, "Ending Functions")
capella_query_by_name(myFunctionalChain, "Starting Functions")

The Java code used to compute those results is in FunctionalChainEndingFunctions and FunctionalChainStartingFunctions, both use the class InvolvementGraph:

  • for an ending function all outgoing edges must be SequenceLink
  • for a starting function all incoming edges must be SequenceLink