# Pillar 3 — Legacy Retirement (3 → 0)

LEG-001

Aveva Web API → Delmia DNC

Bidirectional orchestrated handshake. Harder retirement — requires ScadaBridge scripts to re-implement System Platform parse logic.

LEG-002

Aveva Web API ← Camstar MES

Camstar-initiated. Easier retirement — ScadaBridge already has a native Camstar path; requires Camstar-side reconfiguration.

LEG-003

System Platform → custom email notification service

Easier retirement — ScadaBridge native notifications already exist.

Carve-out: Historian MSSQL reporting surface (BOBJ / Power BI) is explicitly not legacy — see legacy-integrations.md → Deliberately not tracked.