Multi-stage maintenance request workflow spanning four approval phases from initial submission through final completion. Requesters fill a maintenance form and route it through direct manager review, maintenance department head evaluation, and final manager sign-off, with rejection paths and mandatory documentation at each gate. The diagram maps decision points, conditional routing, and closure states to ensure accountability and traceability across the entire maintenance lifecycle. Fork this template on Diagrams.so to customize actor roles, add SLA timers, or integrate with your ticketing system. This structured approach prevents bottlenecks and ensures maintenance requests receive proper oversight before execution.