In Operational Analysis, what means Concept, ConceptCompliance?

Hi all,
While using Python4Capella in OperationalAnalysis I have come across new elements for me that I would like to understand. As I understand the element Concept and ConceptCompliance is not currently implemented in Capella.

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If we wanted to apply Concept and ConceptCompliance in the In-Flight Entertainment System use case example (example case Project download area | The Eclipse Foundation,) what would Concept be and what would ConceptCompliance be?

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Thank you very much in advance.