@startuml prime

    participant TD                  as TD
    participant SW                  as SW
    participant UI                  as UI
    actor       USER                as US

    'Possible actions and interaction types
    ' TD -> SW: MSG: Message
    ' SW -> UI: CMD: command
    ' UI -> UI: ACT: Action
    ' US -> UI: User actions are:
    '   ENT: User enters a value or string
    '   TCH: User touches a button (RadioButton, CheckBox, ...)
    '   SET: User sets/slides a slider
    '   SCL: User scrolls a flipable area
    '
    'Messages conventions:
    '[x<hex message ID> <Req/Rsp/Dat>  \n  <P1>,<P..>]
    '[x<hex message ID> <Req/Rsp/Dat>  \n  <P1>,# certain amount of parameters according to the content]
    '[x<hex message ID> <Req/Rsp/Dat>  \n  <P1>,X The rest of the parameters do not matter.]

    == Prime ==
    TD -> SW: MSG: [xB7: #8] \nTD Pre-Treatment States Data :               \
                        \n\t(U32) mSubMode=TD_PRE_TREATMENT_PRIME_STATE     \
                        \n\t(U32) mInstallState                             \
                        \n\t(U32) mSelfTestDryState                         \
                        \n\t(U32) mPrimeState                               \
                        \n\t(U32) mRecirculateState                         \
                        \n\t(U32) mConfirmRxState                           \
                        \n\t(U32) mHeparinState                             \
                        \n\t(U32) mPatientConnectionState    
    SW -> UI: ACT: Show Pre-Treatment Prime                   
    UI -> US: ACT: Display Prime screen
    TD -> SW: MSG: [xC7: #4] \nTD Prime Data :                              \
                        \n\t(U32) mPrimeState                               \
                        \n\t(U32) mTotalDuration                            \
                        \n\t(U32) mCountDown                                \
                        \n\t(U32) mPauseCountdown                           
    SW -> UI: ACT: Show Prime progress
    UI -> US: ACT: Display Prime progress \
                        \n\t- Current State \
                        \n\t- Countdown timer \
                        \n\t- Progress bar
@enduml