UML Diagram $(6$ marks$)$:

Create at least four types of UML diagrams for your application:

Use Case Diagram: Create a use case diagram that models user interactions with the Task Manager Application. Include actions like "Add Task," "Edit Task," "Delete Task," "Set Reminder," etc.

b$.$ Class Diagram: Create a class diagram showing the key classes for the Task Manager Application. Include relationships between classes like Task, User, Reminder, and Notification.

c$.$ Sequence Diagram: Create a sequence diagram showing how the "Add Task" functionality will flow between different components $($e$.$g$.,$ User, Task Manager, Database$).$

d$.$ Activity Diagram: Create an activity diagram for the "Set Reminder" functionality that shows the flow of actions from setting a reminder to the user receiving a notification.

Create these diagrams based on a task manager application that helps users manage their daily tasks and improve productivity.