Design a Task Management Application

Functional Requirements:

• User Registration & Authentication: Users can sign up, log in, and manage their accounts.
• Task CRUD: Users can create, view, update, and delete tasks.
• Task Assignment: Users can assign tasks to themselves or other users.
• Task Status: Tasks have statuses (e.g., To Do, In Progress, Done) that can be updated.
• Due Dates & Reminders: Users can set due dates and receive reminders for tasks.
• Basic Search & Filter: Users can search and filter tasks by status, assignee, or due date.

Non-Functional Requirements:

• Usability: The application should have a simple and intuitive user interface.
• Performance: Task list and details should load within 1 second for typical users.
• Security: User data should be protected via authentication and authorization; data in transit should be encrypted (HTTPS).
• Scalability: The system should support up to 10,000 active users without significant performance degradation.
• Availability: The application should be available 99.9% of the time.
• Data Consistency: Task updates should be reflected immediately for all relevant users.