Multi-stage maintenance request workflow with four actor roles—Submitter, Direct Manager, Department Head, and Asset Management Director—ensuring approval gates and accountability. Requests flow from initial form submission through manager review (with optional bypass), department head validation, and final director confirmation before completion. The process includes rejection paths at both manager and department head stages, with notification and closure procedures to handle denied requests. This architecture demonstrates role-based approval chains and decision gates essential for controlled asset maintenance operations. Fork this diagram on Diagrams.so to customize actor roles, add SLA timers, or integrate with your ticketing system.