A few ways to do this with mermaid code, pick what works for you. Alternatively, you can create a system map in a program like canva or procreate and store it here.

flowchart TD
    A[SYSTEM NAME] --> B(SUBGROUPS)
    B --> C[subgroup 1]
    B --> D[subgroup 2]
    B --> E[subgroup 3]
    B --> F[subgroup 4]

mindmap
{{SYSTEM NAME}}
  SUBGROUP 1
    part1
    part 2
  SUBGROUP 2
    part 3
    part 4
  subgroup 3
	  part 5
	  part 6

flowchart TD
    A[system admin] --> B(executives)
    B --> C[primary protector]
    B --> D[gatekeeper]
    C --> E[other protector]
    C --> F[other other protector]