changed fig 7.2.1 to use device instead of AE and

@startuml

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' More examples https://www.planttext.com/ 

'Here is a gallery of the available themes: : https://the-lum.github.io/puml-themes-gallery/

' use 'plain' theme for oneM2M standards submissions and 

skinparam BackgroundColor transparent

!theme plain

' Call Flow Starts Here

actor "device" as AE

participant "IN-CSE" as IN 

participant "MN-CSE/MEC1" as MN1  #lightblue

participant "MN-CSE/MEC2" as MN2  #lightblue

participant "MN-CSE/MEC3" as MN3  #lightblue

'autonumber 1

== device handover ==

' IPE registers and creates the Washing Machine Model

AE -> MN1 : device sends 'data'  

group  Monitor system metrics

note over AE,MN3 : monitor network conditions 

note over AE,MN3 : discover neighbors 

note over AE,MN3 : monitor neighbor conditions 

end group

group  Coordinate handover

note over AE,MN3 : Prepare / trigger handover

note over AE,MN3 : device moves to MN2

note over AE,MN3 : State / context transfer

note over AE,MN3 : establish QOS

end group

AE -> MN2 : device sends 'data' 

group  Monitor system metrics

note over AE,MN3 : continue to monitor system metrics

end group

group  Coordinate handover

note over AE,MN3 : handover to MN3

end group

AE -> MN3 : device sends 'data' 

@enduml

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