InvoiceManagementSystems

UML diagram

As the administrator of a website, you are responsible for managing the condominiums' maintenance fees and shared utility bills (electricity, water, and natural gas) through a dedicated system. There are two types of users in the system:

1. Admin

• Enters apartment details.
• Enters resident user information.
• Enters monthly apartment dues and utility bill details. Can assign collectively or individually.
• Views payment information.
• Views received messages.
• Lists, edits, and deletes individuals.
• Lists, edits, and deletes apartment details.

2. User

• Views assigned utility bills and apartment dues.
• Sends messages to the admin.
• Apartment Details:
  • Block information.
  • Occupancy status (Occupied-Vacant).
  • Type (e.g., 2+1).
  • Floor number.
  • Apartment number.
  • Owner or tenant status.
• User Information:
  • Full name.
  • ID number.
  • Email.
  • Phone number.
  • Vehicle information (if available, including license plate number).

Used Back-End Technologies

• Entity Framework Core

• Repository Design Pattern

• AutoMapper

• SignalR

• Json Web Token (JWT)

• Fluent Validation

• LINQ (Language Integrated Query)

• Docker

• WebApi

• MSSQL (Microsoft SQL Server)