This is the system as it is actually built — your PMS on the left, the orchestrator in the middle, the nine families of engines it runs, and the two people it ever talks to. Watch a real event travel through it.
Dentally, SOE Exact and Open Dental stay the record of truth. OakStone watches what happens in them, acts on the gaps, and writes the result back — so your team keeps working the way they already do.
Every action is queued, idempotent and retried, and logged line by line against your own records. Nothing happens that you cannot go back and check.
Each family is a cluster of engines sharing the same orchestrator, the same patient inbox and the same audit trail. That is why the whole loop closes: a cancellation and a recall are the same kind of event to the system, just with different rules.
A pilot leads on B · Fill the diary — the money engines. The rest are built and compound as the data and the network grow.