Architecture

Layered Architecture

1. Users: actors who use the budget management system
   → The Users provide Input to the Console Interface
   ← The Users receive Output from the Console Interface
2. Console Interface: a text-based user interface
   → The Console Interface sends user Commands & Data to the Budget Logic
   ← The Console Interface receives Display Data from the Budget Logic
3. Budget Logic: a .NET application that handles the business logic
   → The Budget Logic sends Budget Data to the File Storage (SQLite)
   ← The Budget Logic receives Budget Data from the File Storage (SQLite)
4. File Storage (SQLite): translates the budget data into SQL queries
   → The File Storage (SQLite) sends Queries to the SQLite Data Files
   ← The File Storage (SQLite) retrieves the Query Results from the SQLite Data Files
5. SQLite Data Files: physical files that store the application's data in the SQLite database format

Model-View-Controller (MVC) Architecture

1. → The Users send User Input (Commands & Data) to the Controller
2. → The Controller sends the budget Data Request to the Model
   ← The Controller receives the budget Data Request from the Model
3. → The Model sends the Data Update to the View
4. → The View sends the View Update request to the Controller
   ← The View receives the View Update request from the Controller
5. → The View sends Display Data to the Users