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@startuml
participant SO
participant SOL005_Adapter
participant SOL005_NBI
participant NS_LCMGR
participant Resource_Mgr
participant OOF
participant Catalog_DB_Adapter
participant ETSI_Catalog_Mgr
participant Inventory_DB_Adapter
participant AAI
participant SOL003_Adapter
participant VIM
participant VNFM

autonumber 

group Terminate NS
	SO -> SOL005_Adapter : Terminate NS
    SOL005_Adapter -> SOL005_NBI : Terminate NS
    SOL005_NBI -> NS_LCMGR : Terminate NS
    NS_LCMGR -> Resource_Mgr : Query all NS instancesinstances related to NS
    Resource_Mgr -> Inventory_DB_Adapter : Query all NS instancesinstances related to NS
    Inventory_DB_Adapter -> AAI : Query all instances related to NS instances
    AAI -> Inventory_DB_Adapter : Return all instances for NS instances
    Inventory_DB_Adapter -> Resource_Mgr : Return all instances for NS instances
    Resource_Mgr -> NS_LCMGR : Return all instances for NS instances
    NS_LCMGR --> NS_LCMGR : Start Delete NS instances
    NS_LCMGR -> Resource_Mgr : Request Homing Information\nfor Network Service
    Resource_Mgr -> OOF : Requests Homing Information\nfor Network Service
    OOF -> Resource_Mgr : Response with Homing Information\nfor Network Service
    Resource_Mgr --> Resource_Mgr : Persist Homing Information\nfor Network Service
loop Go thru each VNF
    NS_LCMGR -> SOL003_Adapter : Delete VNF
    SOL003_Adapter -> VNFM : Delete VNF
    VNFM -> SOL003_Adapter : Request Grant resource for deletion
    SOL003_Adapter -> NS_LCMGR : Request Grant resource for deletion
    VNFM -> SOL003_Adapter : Request Grant VNF resource
    SOL003_Adapter -> NS_LCMGR : Request Grant VNF resource
    NS_LCMGR -> Resource_Mgr : Request Homing Information 
    Resource_Mgr -> NS_LCMGR : Return with Homing Information\nfor the VNF
    NS_LCMGR --> NS_LCMGR : Make a Grant decision
    NS_LCMGR -> SOL003_Adapter : Return with a Grant decision
    SOL003_Adapter -> VNFM: Return with a Grant decision  
	VNFM --> VNFM : Delete Resources
    VNFM -> SOL003_Adapter : Notify changes of VNF/VDUs/CPs
    SOL003_Adapter -> NS_LCMGR : Notify changes of VNF/VDUs/CPs
    NS_LCMGR -> Resource_Mgr : Update records for Delete VNF/VDUs/CPs
    Resource_Mgr -> Inventory_DB_Adapter : Update records for Delete VNF/VDUs/CPs
    Inventory_DB_Adapter -> AAI : Update records for Delete VNF/VDUs/CPs
    AAI --> AAI : Update records for Delete VNF/VDUs/CPs
    AAI -> Inventory_DB_Adapter : Return with Delete VNF/VDUs/CPs
    Inventory_DB_Adapter -> Resource_Mgr : Return with Delete VNF/VDUs/CPs
    Resource_Mgr -> NS_LCMGR : Return with Delete VNF/VDUs/CPs
end
    NS_LCMGR -> Resource_Mgr : Request for Delete VLs (if needed)
    Resource_Mgr -> VIM : Request for Delete VLs
    VIM --> VIM : Delete VLs
    NS_LCMGR -> Resource_Mgr : Update records for Delete VLs
    Resource_Mgr -> Inventory_DB_Adapter : Update records for Delete VLs
    Inventory_DB_Adapter -> AAI : Update records for Delete VLs
    AAI --> AAI : Update records for Delete VLs
    AAI -> Inventory_DB_Adapter : Return with Delete VLs
    Inventory_DB_Adapter -> Resource_Mgr : Return with Delete VLs
    Resource_Mgr -> NS_LCMGR : Return with Delete VLs

    NS_LCMGR -> SOL005_NBI : Send\nnsLcmOperationOccurrenceNotification
    SOL005_NBI -> SOL005_Adapter : Send\nnsLcmOperationOccurrenceNotification
    SOL005_Adapter -> SO : Send\nnsLcmOperationOccurrenceNotification
end    



@enduml