diff --git a/docs/DeveloperGuide.md b/docs/DeveloperGuide.md
index 3e20122ec7a..301053b9e19 100644
--- a/docs/DeveloperGuide.md
+++ b/docs/DeveloperGuide.md
@@ -132,7 +132,7 @@ The `Model` component,
:information_source: **Note:** An alternative (arguably, a more OOP) model is given below. It has a `Tag` list in the `AddressBook`, which `Person` references. This allows `AddressBook` to only require one `Tag` object per unique tag, instead of each `Person` needing their own `Tag` objects.
-

+
@@ -168,7 +168,9 @@ prefer to be called on a later date.
#### How it is implemented
We assume clients who do not have `HousekeepingDetails` do not want to be disturbed by the housekeeping company.
Therefore, the client list should be first filtered by `Client.hasHousekeepingDetais()` then sorted by `HousekeepingDetails`.
-We will also not show clients who have their predicted next housekeeping date that is after the current date.
+As this is meant to be a notification for the client or sales lead for the admin, we not show clients who have their
+predicted next housekeeping date that is after the current date. We will show clients who have their predicted next housekeeping
+that is today or before today to account for calls that the admin might have missed.
To do the sorting, the `Client` class now implements `Comparable` interface, and the `compareTo()` method is
overridden to compare the `HousekeepingDetails` of two clients.
@@ -218,8 +220,6 @@ Cons: [1] Less flexible for the client. The client may not be ready for housekee
[2] It is possible to deal with this as an admin, but it would be "hacky" as the admin would have to edit the `lastHousekeepingDate`.
-A `ClientComparator` is made using the `compareTo()` is then used by `FXCollections.sort()` to sort the list of clients.
-
### \[Completed\] Find using multiple attributes
The Find feature has already been developed in AB3. However, it only searches the keywords given in the Name attribute.
diff --git a/docs/diagrams/BetterModelClassDiagram.puml b/docs/diagrams/BetterModelClassDiagram.puml
index d452fbbdcac..6429eee2ea9 100644
--- a/docs/diagrams/BetterModelClassDiagram.puml
+++ b/docs/diagrams/BetterModelClassDiagram.puml
@@ -28,7 +28,8 @@ Person *--> "1" Address
Person *--> "1" Area
HousekeepingDetails *--> "1" LocalDate
-HousekeepingDetails *--> "1" Period
+HousekeepingDetails *--> "2" Period
+HousekeepingDetails *--> "1" Booking
BookingList *-right-> "*" Booking
diff --git a/docs/images/BetterModelClassDiagram.png b/docs/images/BetterModelClassDiagram.png
index 6babca197c6..6f471dee578 100644
Binary files a/docs/images/BetterModelClassDiagram.png and b/docs/images/BetterModelClassDiagram.png differ