Index: SDDs/Blood_Prime.png
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Index: SDDs/Blood_Prime.puml
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--- SDDs/Blood_Prime.puml	(revision 0)
+++ SDDs/Blood_Prime.puml	(revision ab269cf53d88726880061e197ef6f40a13ace804)
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+@startuml Blood 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 -> TD: MSG: Message
+    ' SW -> UI: CMD: command
+    ' UI -> SW: 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.]
+
+    == Blood Prime Progess ==
+    TD -> SW: MSG: [x97 Dat #2] Blood Prime Progress\
+        \n\t(F32) targetVol\
+        \n\t(F32) deliveredVol
+    SW -> UI: CMD: Blood Prime Progress Data
+    UI -> US: ACT: Display Blood Prime Progress
+
+    == Blood Prime Command Request/Response ==
+    US -> UI: TCH: Blood Prime Screen Interation
+    UI -> SW: ACT: Blood Prime Command
+    SW -> TD: MSG: [x98: Req #1] Blood Prime Command Request\n\
+        \t(U32) cmd=\n\
+        \t\t[ DECREASE_RATE |\n\
+        \t\tINCREASE_RATE |\n\
+        \t\tPAUSE ]
+    alt accepted
+        TD -> SW: MSG: [x99: Rsp #2] Blood Prime Command Response\n\
+            \t(BOOL) accepted=1\n\
+            \t(U32)  rejReason=X
+        SW -> UI: CMD: Blood Prime Command Adjustment Triggered
+        UI -> US: ACT: Update Blood Prime Screen
+    else #Pink rejected
+        TD -> SW: MSG: [x99: Rsp #2] Blood Prime Command Response\n\
+            \t(BOOL) accepted=0\n\
+            \t(U32)  rejReason
+        SW -> UI: CMD: Blood Prime Command Adjustment Triggered
+        UI -> US: ACT: Display Rejection Reason
+    end
+
+    == Fluid Bolus Infusion ==
+    note over UI
+    See Fluid Bolus Infusion diagram for details
+    end note
+
+    == Pressures Display ==
+    note over UI
+    See Main Treatment Screen diagram for details
+    end note
+@enduml