Do you have any recommendations for structuring plans for A(M)C 20-193?

The complex nature of multicore platforms and the activities associated with addressing A(M)C 20-193 objectives generate many artifacts. As such, it is crucial to structure the planning documents accordingly. 

A(M)C 20-193 does not indicate the need for explicit multicore planning documents, so multicore specific documentation may be incorporated into existing PSAC, SVP and PHAC documents. Alternatively, a multicore version of corresponding DO-178C documents can be written to allow A(M)C artifacts to be independently generated without impacting the existing documents. In either case, it is crucial that traceability mechanisms are in place. We have seen both approaches to documenting A(M)C 20-193 activities to implemented successfully. Which option is best likely depends on the existing infrastructure and team structure in place. 

MACH¹⁷⁸ Foundations includes a template Plan for Multicore Aspects of Certification (PMAC) and Multicore Software Verification Plan (MSVP), which structurally follow the PSAC and SVP respectively, to allow easy integration into existing documents or use as standalone documents.