1. Overview : 1.3 Launching Workflows : 1.3.3 SOAP API
   
1.3.3 SOAP API
The SOAP API presented by the vCenter Orchestrator server allows external systems to start workflows. This interface is used by integration developers, service management applications, and web portals. To learn more about this API, see the VMware vCenter Orchestrator Documentation (https://www.vmware.com/support/pubs/orchestrator_pubs.html).