@startuml left to right direction actor Client as c package Hydra-System { usecase "Init Head" as init usecase "Commit" as commit usecase "Close Head" as close } package Wallet { usecase "Fund Wallet" as fund usecase "Balance & Sign Tx" as sign } package Cardano-Node { usecase "Submit Tx" as submit } package Some-Wallet { usecase "Fund Wallet" as fund2 usecase "Query UTxO" as query2 usecase "Balance & Sign Tx" as sign2 } package Some-Cardano-Node { usecase "Submit Tx" as submit2 } c --> fund c --> fund2 c --> init init --> sign c --> commit : get commit draft given UtxO c --> sign2 : with commit draft c --> close close --> sign sign .> fund : using Value sign --> submit c --> query2 sign2 .> fund2 : using Value sign2 --> submit2 @enduml Submit amiga aws-orange black-knight bluegray blueprint cerulean-outline cerulean crt-amber crt-green cyborg-outline cyborg hacker lightgray mars materia-outline materia metal mimeograph minty plain reddress-darkblue reddress-darkgreen reddress-darkorange reddress-darkred reddress-lightblue reddress-lightgreen reddress-lightorange reddress-lightred sandstone silver sketchy-outline sketchy spacelab spacelab-white superhero-outline superhero toy united vibrant       🎉 Discover the future PlantUML Web Editor! 🚀  PNG  SVG  ASCII Art