Index: SDDs/MainTreatmentScreen.puml
===================================================================
diff -u -r77ba0083b790f7c1c851c60ecaeaa4f2e7eff7a8 -r84b2b28f6ff10787a228a95cae89f487fbbbd165
--- SDDs/MainTreatmentScreen.puml	(.../MainTreatmentScreen.puml)	(revision 77ba0083b790f7c1c851c60ecaeaa4f2e7eff7a8)
+++ SDDs/MainTreatmentScreen.puml	(.../MainTreatmentScreen.puml)	(revision 84b2b28f6ff10787a228a95cae89f487fbbbd165)
@@ -23,6 +23,9 @@
     == Tx Time ==
     TD -> SW: MSG: [x3B: #3] \nTD Treatment Time Data:\n(U32) txDurSecs\n(U32) txElapsedSec\n(U32) txRemainingSecs
     SW -> UI: CMD: Update Treatment Time:\n(U32) txDurSecs\n(U32) txElapsedSec\n(U32) txRemainingSecs
+    == Parameter Ranges ==
+    TD -> SW: MSG: [x43: #6] \nTD Treatment Param Ranges:\n(U32) minTreatmentTime\n(U32) maxTreatmentTime\n(F32) minUFVolume\n(F32) maxUFVolume\n(U32) minDialRate\n(U32) maxDialRate
+    SW -> UI: CMD: Update Param Ranges:\n(U32) minTreatmentTime\n(U32) maxTreatmentTime\n(F32) minUFVolume\n(F32) maxUFVolume\n(U32) minDialRate\n(U32) maxDialRate
     == Tx Parameter set points ==
     TD -> SW: MSG: [x4F: #3] \nTD treatment Set Points Data\n(U32) bloodFlow\n(U32) dialFlow\n(F32) dialTemp
     SW -> UI: CMD: Update TX Set Points Data:\n(U32) bloodFlow\n(U32) dialFlow\n(F32) dialTemp
Index: SDDs/TreatmentAdjustmentUltrafiltration.puml
===================================================================
diff -u
--- SDDs/TreatmentAdjustmentUltrafiltration.puml	(revision 0)
+++ SDDs/TreatmentAdjustmentUltrafiltration.puml	(revision 84b2b28f6ff10787a228a95cae89f487fbbbd165)
@@ -0,0 +1,79 @@
+@startuml Ultrafiltration Adjustment
+
+    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.]
+
+    == Ultrafiltration - Pause ==
+    US -> UI: TCH: Ultrafiltration Edit Button
+    UI -> UI: ACT: Open Adjust Ultrafiltration Start
+    US -> UI: TCH: Pause Ultrafiltration Button
+    UI -> SW: ACT: Pause Ultrafiltration
+    SW -> TD: MSG: [x47: Req UF_CMD_PAUSE]\nUltrafiltration Pause/Resume Request
+    TD -> SW: MSG: [x48: Rsp accepted, X]\nUltrafiltration Pause/Resume Response
+    SW -> UI: CMD: Ultrafiltration Pause/Resume Adjustment Triggered
+    alt accepted
+        UI -> UI: CMD: Hide Pause Ultrafiltration Button\n\tShow Resume Ultratiltration, Edit UF, and Isolated UF Buttons
+    else rejected
+        UI -> UI: ACT: Display Rejection Reason
+    end
+
+    == Ultrafiltration - Adjust Volume Goal ==
+    US -> UI: ACT: Successfully Perform Ultrafiltration Pause\n\t(see Ultrafiltration - Pause)
+    US -> UI: TCH: Edit UF Button
+    UI -> UI: ACT: Open Adjust Ultrafiltration Edit
+    US -> UI: SET: Change Ultrafiltration Volume Goal
+    US -> UI: TCH: Continue Button
+    UI -> SW: ACT: Adjust Ultrafiltration Volume Goal
+    SW -> TD: MSG: [x41: Req ufVolumeMl]\nUltrafiltration Volume to Validate Request
+    TD -> SW: MSG: [x42: Rsp accepted, rejectionReason, ufVolume, durationMin, timeDiff, ufRate, rateDiff, oldUFRate]\nUltrafiltration Volume to Validate Response
+    SW -> UI: CMD: Ultrafiltration Edit Adjustment Triggered
+    alt accepted
+        UI -> UI: CMD: Open Adjust Ultrafiltration Confirm
+        US -> UI: TCH: Confirm Button
+        UI -> SW: ACT: User Confirm Ultrafiltration Volume Goal Adjustment
+        SW -> TD: MSG: [x66: Req volumeMl]\nUltrafiltration User Confirm Settings Change Request
+        TD -> SW: MSG: [x67: Rsp accepted, rejectionReason, volume, duration, rate]\nUltrafiltration User Confirm Settings Change Request
+        SW -> UI: CMD: Confirmed Ultrafiltration Settings
+        alt accepted
+            UI -> UI: ACT: Open Ultrafiltration Adjust Start\n\tShow Resume Ultratiltration, Edit UF, and Isolated UF Buttons
+        else rejected
+            UI -> UI: ACT: Display Rejection Reason
+        end
+    else rejected
+        UI -> UI: ACT: Display Rejection Reason
+    end
+
+    == Ultrafiltration - Resume ==
+    opt
+        US -> UI: TCH: Ultrafiltration Edit Button
+        UI -> UI: ACT: Open Ultrafiltration Adjust Start
+    end
+    US -> UI: TCH: Resume Ultrafiltration Button
+    UI -> SW: ACT: Resume Ultrafiltration
+    SW -> TD: MSG: [x47: Req UF_CMD_RESUME]\nUltrafiltration Pause/Resume Request
+    TD -> SW: MSG: [x48: Rsp accepted, rejectionReason]\nUltrafiltration Pause/Resume Response
+    SW -> UI: CMD: Ultrafiltration Pause/Resume Adjustment Triggered
+    alt accepted
+        UI -> UI: CMD: Hide Resume Ultratiltration, Edit UF, and Isolated UF Buttons\n\tShow Pause Ultrafiltration Button
+    else rejected
+        UI -> UI: ACT: Display Rejection Reason
+    end
+@enduml