diff --git a/docs/DeveloperGuide.md b/docs/DeveloperGuide.md
index 25054c5d0e1..414b8f4c506 100644
--- a/docs/DeveloperGuide.md
+++ b/docs/DeveloperGuide.md
@@ -188,8 +188,6 @@ the lifeline reaches the end of diagram.
 #### Design rationale
 {:.no_toc}
 
-The `add-t` command was designed this way to ensure consistency with the previous `add` command in AB3.
-
 **Aspect: Optional fields**
 * **Alternative 1:** Allow optional fields when adding tutor (e.g. user can omit phone number or email when adding a 
   tutor).
diff --git a/docs/diagrams/EditScheduleSequenceDiagram.puml b/docs/diagrams/EditScheduleSequenceDiagram.puml
index db542c11595..20b4f13e912 100644
--- a/docs/diagrams/EditScheduleSequenceDiagram.puml
+++ b/docs/diagrams/EditScheduleSequenceDiagram.puml
@@ -6,10 +6,9 @@ box Logic LOGIC_COLOR_T1
 participant ":LogicManager" as LogicManager LOGIC_COLOR
 participant ":AddressBookParser" as AddressBookParser LOGIC_COLOR
 participant ":EditSchedule\nCommandParser" as EditScheduleCommandParser LOGIC_COLOR
-participant "e:EditSchedule\nDescriptor" as EditScheduleDescriptor LOGIC_COLOR
 participant "d:EditSchedule\nCommand" as EditScheduleCommand LOGIC_COLOR
 participant "r:CommandResult" as CommandResult LOGIC_COLOR
-participant "s:Schedule" as EditedSchedule MODEL_COLOR
+participant "e:Schedule" as EditedSchedule MODEL_COLOR
 end box
 
 box Model MODEL_COLOR_T1
@@ -32,13 +31,6 @@ deactivate EditScheduleCommandParser
 AddressBookParser -> EditScheduleCommandParser : parse("1 st/2023-09-15T09:00")
 activate EditScheduleCommandParser
 
-create EditScheduleDescriptor
-EditScheduleCommandParser -> EditScheduleDescriptor
-activate EditScheduleDescriptor
-
-EditScheduleDescriptor --> EditScheduleCommandParser : e
-deactivate EditScheduleDescriptor
-
 create EditScheduleCommand
 EditScheduleCommandParser -> EditScheduleCommand
 activate EditScheduleCommand
@@ -63,21 +55,21 @@ return
 
 create EditedSchedule
 EditScheduleCommand -> EditedSchedule ++
-return s
-EditScheduleCommand -> Model ++ : hasSchedule(s)
+return e
+EditScheduleCommand -> Model ++ : hasSchedule(e)
 return
 
 EditScheduleCommand -> Model ++ : getAddressBook()
 return
 
 loop number of schedules in model
-    EditScheduleCommand -> EditedSchedule : isClashing(s)
+    EditScheduleCommand -> EditedSchedule : isClashing(e)
     activate EditedSchedule
     EditedSchedule --> EditScheduleCommand
     deactivate EditedSchedule
 end
 
-EditScheduleCommand -> Model ++ : setSchedule(scheduleToEdit, s)
+EditScheduleCommand -> Model ++ : setSchedule(scheduleToEdit, e)
 return
 EditScheduleCommand -> Model ++ : updateFilteredScheduleList()
 return
diff --git a/docs/images/EditScheduleSequenceDiagram.png b/docs/images/EditScheduleSequenceDiagram.png
index cd36fa1b3ef..7aa460e3359 100644
Binary files a/docs/images/EditScheduleSequenceDiagram.png and b/docs/images/EditScheduleSequenceDiagram.png differ