How to use "Communication Parties" and "Business Components"

Hi experts,

we are currently re-evaluating how to use the available configuration objects in the Integration Builder (Swing) / Integration Directory (NWDS) due to our migration to single stack PI 7.4.

So far we decided

• Use "Business Systems" only for internal SAP Systems

We also have a vague concept for Business Components in place, still input is welcome

• Use "Business Components" to distinguish between different "partners and systems" / "transmission techniques" / "subsystems"
  • Not really easy to define a general approach, we plan have one Business Component per transmission type as a general rule
    • For example: WHATEVERSYSTEM_FILE, WHATEVERSYSTEM_FTP
  • This allows us, for example, to use the same Service Interface from the same Partner/System via FTP and FILE which would not be possible with just one Business Component
  • Sometimes we have to distinguish between subsystem,
    • For example: WHATEVERSYSTEM_DEV, WHATEVERSYSTEM_QA

Where I would really appreciate your thoughts is of how to use "Communication Parties"

• First, should they be used at all?
  • They don't even get a separate page on help.sap.com for AEX 7.4 anymore, and we don't want to utilize an object that might get obsolete over time
• We know the general rule to use "Communication Parties" for B2B / EDI communication, but don't see any technical reason for this, and wonder if this statement from back of the beginning of XI is still valid
• We are thinking about adding "Communication Parties" to all our interfaces
  • The benefit would be, that we have one common party, for many different "Business Components".
  • For example you could have 10 Business Components (for the same system / partner) with the same Party. In the PI Monitoring you could search for the Party, and find all communication not having to care which specific Business Component was used
    • For example "Communication Party" WHATEVERSYSTEM with several "Business Components" WHATEVERSYSTEM_FILE, WHATEVERSYSTEM_FTP, WHATEVERSYSTEM_SOAP, ...

Thanks for your help.