# Package Responsibility Map

| Package        | Responsibility                                  | Forbidden Dependencies |
|----------------|------------------------------------------------|------------------------|
| controller     | Handles user input and orchestrates payment    | domain                 |
| service        | Contains business logic for payment processing  | integration            |
| repository     | Data access layer for payment records           | service                |
| domain         | Defines the core domain models and business rules| controller             |
| integration     | Communicates with external payment gateways     | domain, service        |