@startuml
actor "Content Provider" as CS
participant "Document Source" as DS
participant "Document Repository" as DR
participant "Document Registry" as DReg

CS -> DS: Initiate submission
DS -> DS: Collect document(s) & metadata
DS -> DR: Submit document(s) & metadata (ITI-41)
DR -> DR: Process request
DR -> DR: Store document(s)
DR -> DReg: Submit metadata (ITI-42)
DReg -> DReg: Validate metadata
DReg -> DReg: Store metadata
DReg -> DR: Success response (ITI-42)
DR -> DS: Success response (ITI-41)
DS -> DS: Document(s) ready for retrieval by consumer
@enduml